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11-0940 (SOL)P.O. BOX 1504 78-495 CALLE TAMPICO LA QUINTA, CALIFORNIA 92253 Application Number: ;11-00000940 Property Address: 51300 AVENIDA DIAZ APN: 773-044-032-19 -000000- Application description: -SOLAR Property Zoning: MEDIUM DENSITY RES Application valuation: 60000 Ti4t 4 4 Q" Applicant: Architect or Engineer: ------------------ LICENSED CONTRACTOR'S DECLARATION BUILDING & SAFETY DEPARTMENT BUILDING PERMIT I hereby affirm under penalty of perjury that I am licensed under provisions of Chapter 9 (commencing with Section 7000) of Division 3 of the Business and Pr sionals Code, and my License is in full force and effect. License Class: C46 License No.: 900399 ate: //-Z — / 1 ontract OWNER -BUILDER DECLARATION I hereby affirm under penalty of perjury that I am exempt from the Contractor's State License Law for the following reason (Sec. 7031.5, Business and Professions Code: Any city or county that requires a permit to construct, alter, improve, demolish, or repair any structure, prior to its issuance, also requires the applicant for the permit to file a signed statement that he or she is licensed pursuant to the provisions of the Contractor's State License Law (Chapter 9 (commencing with Section 7000) of Division 3 of the Business and Professions Code) or that he or she is exempt therefrom and the basis for the alleged exemption. Any violation of Section 7031.5 by any applicant for a permit subjects the applicant to a civil penalty of not more than five hundred dollars ($500).: (_ 1 1, as owner of the property, or my employees with wages as their sole compensation, will do the work, and the structure is not intended or offered for sale (Sec. 7044, Business and Professions Code: The Contractors' State License Law does not apply to an owner of property who builds or improves thereon, and who does the work himself or herself through his or her own employees, provided that the improvements are not intended or offered for sale. If, however, the building or improvement is sold within one year of completion, the owner -builder will have the burden of proving that he or she did not build or improve for the purpose of sale.). (_ 1 1, as owner of the property, am exclusively contracting with licensed contractors to construct the project (Sec. 7044, Business and Professions Code: The Contractors' State License Law does not apply to an owner of property who builds or improves thereon, and who contracts for the projects with a contractor(s) licensed pursuant to the Contractors' State License Law.). I—) I am exempt under Sec. , B.&P.C. for this reason Date: Owner: CONSTRUCTION LENDING AGENCY I hereby affirm under penalty of perjury that there is a construction lending agency for the performance of the work for which this permit is issued (Sec. 3097, Civ. C.). Lender's Name: Lender's Address: VJ LP, LQPERMIT VOICE (760) 777-7012 FAX (760) 777-7011 INSPECTIONS (760) 777-7153 Date: 11/02/11 Owner: MICHAEL FASH 51300 AVENIDA DIAZ LA QUINTA, CA 92253 O Q Contractor: NOV 0 2 2011 SEA BRIGHT SOLAR INC 390 ALABAMA STREET STE A CITY OF LA QUINTA REDLANDS, CA 92373 FiNANCE05PT (909)335-0820 Lic. No.: 900399 ------------------ WORKER'S COMPENSATION DECLARATION 1 hereby affirm under penalty of perjury one of the following declarations: _ I have and will maintain a certificate of consent to self -insure for workers' compensation, as provided for by Section 3700 of the Labor Code, for the performance of the work for which this permit is issued. I have and will maintain workers' compensation insurance, as required by Section 3700 of the Labor Code, for the performance of the work for which this permit is issued. My workers' compensation insurance carrier and policy number are: Carrier PRAETORIAN INS Policy Number EQB0100375 I certify that, in the performance of the work for which this permit is issued, I shall not employ any person in any manner so as to become subject to the workers' compensation laws of California, and agree that, if I should become subject to the workers' compensation provisions of Section 3700 of the Labor Cod all forthwith comply with those provisions. ate: 1�����I plican WARNING: FAILURE TO SECURE WORKERS' COMPENSATION COVERAGE IS UNLAWFUL, AND SHALL SUBJECT AN EMPLOYER TO CRIMINAL PENALTIES AND CIVIL FINES UP TO ONE HUNDRED THOUSAND DOLLARS ($100,000). IN ADDITION TO THE COST OF COMPENSATION, DAMAGES AS PROVIDED FOR IN SECTION 3706 OF THE LABOR CODE, INTEREST, AND ATTORNEY'S FEES. APPLICANT ACKNOWLEDGEMENT IMPORTANT Application is hereby made to the Director of Building and Safety for a permit subject to the conditions and restrictions set forth on this application. 1. Each person upon whose behalf this application is made, each person at whose'request and for whose benefit work is performed under or pursuant to any permit issued as a result of this application, the owner, and the applicant, each agrees to, and shall defend, indemnify and hold harmless the City of La Quinta, its officers, agents and employees for any act or omission related to the work being performed under or following issuance of this permit. 2. Any permit issued as a result of this application becomes null and void if work is not commenced within 180 days from date of issuance of such permit, or cessation of work for 180 days will subject permit to cancellation. I certify that I have read this application and state that the above information is correct. I agree to comply with all city and county ordinances and state laws relating to building cons tion, and hereby authorize representatives of thi gi o enter upon he above-mentioned property fo 'rr tfction purposes. te: S' nature (Applicant or Age a Application Number. . . . . . 11-00000940 Permit . . . ELEC-MISCELLANEOUS INV FEE BASE FEE Additional desc . 9.00 1.00 6..0000 EA SOLAR EQUIP MISCELLANEOUS Permit Fee . . 60.00 Plan Check Fee 7.50 Issue Date . . . . Valuation 0 Expiration Date 4/30/12 WORK COMMENCING BEFORE PERMIT Qty Unit Charge Per ISSUANCE*** 2010 CALIFORNIA ELECTRICAL Extension CODE. BASE FEE 30..00 1.00 ---------------------------------------------------------------------------- 30.0000 EA ELEC PWR APP >10 TO <=50 30..00 Permit SOLAR PERMIT INV FEE 105.00 Additional desc . Other Fee Total 73.00 .00 .00 73.00 Permit Fee 45.00 Plan Check Fee 5.63 Issue Date . . . . -Valuation 60000 Expiration Date . . 4/30/12 Qty Unit Charge Per Extension BASE FEE 30.00 1.00' 9.0000 EA SOLAR COLLECTOR < 1000 9.00 1.00 6..0000 EA SOLAR EQUIP MISCELLANEOUS .6.00 -------------------------------------------------------------------- Special Notes and Comments -------- 11.5kW SOLAR ARRAY - (36) 320W SUNPOWER PANELS W/ (2) 6,000W SUNPOWER INVERTERS [612SF] ***INVESTIGATION FEE ASSESSED PER 2010 CALIFORNIA ELECTRICAL CODE FOR WORK COMMENCING BEFORE PERMIT ISSUANCE*** 2010 CALIFORNIA ELECTRICAL CODE. .November 1, 2011 5:13:14 PM AORTEGA ---------------------------------------------------------------------------- Other Fees . . . . . . . . . BLDG STDS ADMIN (SB1473) 3.00 HOURLY PLAN CHECK 70..00 Fee summary Charged Paid Credited --------------------------------------------------------- Due Permit Fee Total 105.00 .00 .00 105.00 Plan Check Total 13.13 .00 .00 13.13 Other Fee Total 73.00 .00 .00 73.00 Grand Total 191.13 .00 .00 191:13 LQPERA1IT Bin # !c.City of La iQuinta Building &r Safety Division Box 1504, 78-495 Calle Tampico Quinta, CA 92253 - (760) 777-7012 Building ►ng Permit Application and Tracking Sheet Permit #P.O. �� Project Address: 3 00 AgctJf bA _3> to Z Owner's Name: ft.11 eN,4� ��S ff A. P. Number: -77- Ql� —��Z Address: 6i3D0 hdt;vl bA OI AZ Legal Description:Er City, ST, Zip:Lti Qu /N i A [pZS Contractor: SE's t 6-t- T ai So ASR- 4 Address: -390 AL $A,r A 5 Project Description: (%) b eww S09°ltov City, ST, Zip: Tele hone p 53,1r -0? -ZD �j �i / : �'•`- s.�>:':v:'�rv-- L'. (a :;:nom: r ..: b;':;>, City Lic. #; (7� •r` �� J / �/ C%�il State Lic. #:9 do 39 9 Arch., Engr., Designer: Address: % d C d t I Ni (. 7 I /� A SA 1F1 A - City, ST, Zip: al de'vas tit✓ CA Telephone: (p-i�j #` ' Construction Type: Occupancy: Project type (circle one): New Add'n Alter Repair Demo �/ State Lic. #: G— %� %i ( AMM f. :< ;i r' , `, Name of Contact Person: C D L tjN AU -A tJ Sq. Ft.: #Stories: # Units: Tel hone # of Contact Person: �� eP � Estimated Value of Project: Cv� Q� ' APPLICANT: DO NOT WRITE BELOW THIS UNE N Submittal Req'd Rec'd TRACKING PERMrr FEES Plan Set 3 Plan Check submitted 3` Item Amount Structural Cala. Reviewed, ready for corrections q Plan Check Deposit Truss Cafes. Called Contact Person Q ` Plan Check Balance Title 24 Cala. Plans picked cep % Construction Flood plain plan Plans resubmitted O Mechanical Grading plan T'! Review, ready fo rrectio uaue 14 1 J%4.1 Electrical Subcontaetor List Called Contact Person t I*` Plumbing Grant Deed / Plans picked up 1y0 ' b S.M.I. H.O.A. Approval Plans resubmitted Grading IN HOUSE:- Review, ready f eorrce ' issue Developer Impact Fee Planning Approval �lA.I.P.P. Pub. Wks. Appr Date of permit issue School Fees Total Permit Fees 8131 --* Zug. /%8 k4tu"-,(I---4 '9,��, a«-�- 10 -as w Q , l?a�l • sz , p.�, (-W k1 — UL.*A tv, � �'" soda, Aft, � *astir:- � W. - City of La 4uinta Plan Check Correction list Building and Safety Department II Circuit Requirements Conductor sizing schedule has been provide and add on sheet PV -P3 IV Wiring Run locations shown on sheet PV -P2 conduit run. Schedule showing adjustment factors and conductor sizing of temperature. V Grounding. Both the GEC and EGC are on PV -P3 to compile with CEC690 conductor is in the conduit run. VI Verification of 200 Amp service with 225 amp buss cut sheet is on sheet PV -P10 and PV -P11 225 amp rating is show. L_ �Uev J_ C�� C-f ___ __ - TM SO RMOUbff - Code -Compliant Installation Manual 227.2 U.S. Des. Patent No. D496,248S, D496,249S. Other patents pending. t} CITY OF LA QUINTA Table of Contents BUILDING & SAFETY DEPT. L Installer's Responsibilities ...................... APPROVED ......... Part I. Procedure to Determine the Design Wi id LoVOR. CONSTRUCTION ... ........ . Part II. Procedure to Select Rail Span and Rail rype ............................................. 10 Part III. Installing SolarMount DATE B YM--. - [3.1.] SolarMount rail componen................................................ 1 y� [3.2.] Installing SolarMount with top mounting clamps .............................. U [3.3.] Installing SolarMount with bottom mounting clips ........ . rP .......... [3.4.]Installing SolarMount with grounding clips and lugs ........ ,, = _`.. ..... 25 iae •■ � �. U N I RAC • • Bright Thinking in Solar (0) F (G;� ID Unirac welcomes input concerning the accuracy and user-friendliness of this publication. Please write to;publications@unirac.com. d AUG 31 2011 � k/ . � �5 8H U N I RAC Unirac Code -Compliant Installation Manual SolarMount L Installer's Responsibilities Please review this manual thoroughly before installing your SolarMount system. This manual provides (1) supporting documentation for building permit applications relating to Unirac's SolarMount Universal PV Module Mounting system, and (2) planning and assembly instructions for SolarMount SolarMount products, when installed in accordance with this bulletin, will be structurally adequate and will meet the structural requirements of the IBC 2006, IBC 2003, ASCE 7- 02, ASCE 7-05 and California Building Code 2007 (collectively referred to as "the Code"). Unirac also provides a limited warranty on SolarMount products (page 26). SolarMount is much more than a product. It's a system of engineered components that can be assembled into a wide variety of PV mounting structures. With SolarMount you'll be able to solve virtually any PV module mounting challenge. It's also a system of technical support: complete installation and code compliance documentation, an on-line SolarMount Estimator, person-to-person customer service, and design assistance to help you solve the toughest challenges. Which is why SolarMount is PV's most widely used mounting system. r The -installer is solely responsible for: w ­. Complying with all applicable local or national building codes, including any that may supersede this manual; • Ensuring that Unirac and other products are appropriate for the particular.installation and the installation environment; • Ensuring that:the roof, its rafters, connections, and other structural support members can support the array under all code level loading conditions (this total building assembly is ` referred to as.the building structure); • Using only. Unirac parts and installer -supplied parts as specified by Unirac (substitution of parts may.void the,.., warranty and invalidate the letters of certification in all Unirac publications); • Ensuring that lag screws have adequate pullout strength and shear capacities as installed; • Verifying the strength of any alternate mounting used in lieu of the lag screws; • Maintaining the waterproof integrity of the roof, ipcluding selection of appropriate flashing; • Ensuring safe installation of all electrical aspects of the PV array; and • Ensuring correct and appropriate design parameters are used in determining the design loading used for design of the specific installation. Parameters, such as snow loading, wind speed, exposure and topographic factor should be confirmed with the local building official or a licensed professional engineer. fA . ti .. SolarMount Unirac Code -Compliant Installation Manual -den U N I RAC Part I. Procedure to Determine the Design Wind Load [1.1.] Using the Simplified Method - ASCE 7-05 The procedure to determine Design Wind Load is specified by the American Society of Civil Engineers and referenced in the International Building Code 2006. For purposes of this document, the values, equations and procedures used in this document reference ASCE 7-05, Minimum Design Loads for Buildings and Other Structures. Please refer to ASCE 7-05 if you have any questions about the definitions or procedures presented in this manual. Unirac uses Method 1, the Simplified Method, for calculating the Design Wind Load for pressures on components and cladding in this document. The method described in this document is valid for flush, no tilt, SolarMount Series applications on either roofs or walls. Flush is defined as panels parallel to the surface (or with no more than 3" difference between ends of assembly) with no more than 10" space between the roof surface, and the bottom of the PV panels. This method is not approved for open structure calculations. Applications of these procedures is subject to the following ASCE 7-05 limitations: 1. The building height must be less than 60 feet, h < 60. See note for determining h in the next section. For installations on structures greater than 60 feet, contact your local Unirac Distributor. 2. The building must be enclosed, not an open or partially enclosed structure, for example a carport. 3. The building is regular shaped with no unusual geometrical irregularity in spatial form, for example a geodesic dome. 4. The building is not in an extreme geographic location such as a narrow canyon or steep cliff. 5. The building has a flat or gable roof with a pitch less than 45 degrees or a hip roof with a pitch less than 27 degrees. for more clarification on the use of Method I. Lower design wind loads may be obtained by applying Method II from ASCE 7-05. Consult with a licensed engineer if you want to use Method II procedures. The equation for determining the Design Wind Load for components and cladding is: IL pnet (PSD = AKztl pnet30 �w 3 r ' i 0 ' q) pnet (Psf) = Design Wind Load = (3, L A = adjustment factor for height and exposure category (r 3 Kzt = Topographic Factor at mean roof height, h (ft) ` I = Importance Factor _ 1 pnet3o (Psf) = net design wind pressure for Exposure B, at height =30,1=.1 You will also need to know the following information: Basic Wind Speed = V (mph), the largest 3 second gust of wind in the last 50 years. h (ft) = total roof height for flat roof buildings or mean roof height forpitched roof buildings Effective Wind Area (sf) = minimum total continuous area of modules being installed Roof Zone = the area of the roof you are installing the pv system according to Figure 2, page 5. 6. If your installation does not conform to these requirements Roof Zone Setback Length = a (ft) please contact your local Unirac distributor, a local professional engineer or Unirac Roof Pitch (degrees) If your installation is outside the United States or does not Exposure Category meet all of these limitations, consult a local professional engineer or your local building authority. Consult ASCE 7-05 [1.2.] Procedure to Calculate Total Design Wind The procedure for determining the Design Wind Load can be Step 2: Determining Effective Wind Area broken into steps that include looking up several values in Determine the smallest area of continuous modules you will different tables. be installing. This is the smallest area tributary (contributing load) to a support or to a simple -span of rail. That area is the Step 1 • Determine Basic Wind Speed, V (mph) Effective Wind Area, the total area of the fewest number of modules on a run of rails. Determine the Basic Wind Speed, V (mph) by consulting your local building department or locating your installation on the maps in Figure 1, page 4. 3 MH U N I RAC Unirac Code -Compliant Installation Manual SolarMount mph m/s) Figure 1. Basic Wind Speeds. Adapted and applicable to ASCE 7-05. Values are nominal design 3 -second gust wind speeds at 33 feet above ground for Exposure Category C. e 130(58) 140 63) k .150(6 r4li `! J �s,,100(45) IA30(58) Step 3: Determine Roof/Wall Zone The Design Wind Load will vary based'on where the installation is located on a roof. Arrays may be located in more than one roof zone. Using Table 1, determine the Roof Zone Setback Length, a (ft); according to the width and height of the building on which you are installing the pv system. 90(40) '100(45) 110(49) 120(54) 130(58) ,140(63) Miles per hour (meters per second) Table 1. Determine Roof/Wall Zone, length (a) according to building width and height a = 10 percent of the least horizontal dimension or 0.4h, whichever is smaller, but not less than either 4% of the least horizontal dimension or 3 It of the building. Roof Least Horizontal Dimension (ft) Height (ft) 10 15 20 25 30 40 50 60 70 80 90 100 12S ISO 175 200 300 400 500 C:10-3=-3-3-3-4-4-4-4-4-4 _ 4' �5'�"6"—`7-8-12=16=20] 33�3�3�3 4 5 6 6 6 6 6 6�6�7 812 16 20 .20. =3 ,3,3., 3 3 3 3 3 30 5 6 7 8 9 10 10 10 10 10 12 I6 '20 30 3�3�3�3�3_4 35 3 3 3�3 3 4 5 6 7 8 9 10 12.5 14 14 14 1416 20 45 3' 3 3 3 3 4 5 - 6 7 8 9 10 12.5 15 17.5 18 18 18 20 =50' 3__.__.33-3-3=4-5-6,7 8�,9,_� 10-12.5_15,_.-17.5-2 -20_•20_20] 60 3 3 3 3 3 4 5 6 7 8 9 10 12.5 15 17.5 20 24 24 24 Source: ASCE/SEI 7-05, Minimum Design Loads for Buildings and Other Structures, Chapter 6, Figure 6-3, p. 41. , SolarMount Unirac Code -Compliant Installation Manual ;;'UNI RAC Step 3: Determine Roof Zone (continued) Using Roof Zone Setback Length, a, determine the roof zone locations according to your roof type, gable, hip or monoslope. Determine in which roof zone your pv system is located, Zone 1, 2, or 3 according to Figure 2. Figure 2. Enclosed buildings, wall and roofs Interior Zones Roofs -Zone IMalls -Zone 4 Step 4: Determine Net Design Wind Pressure, pnet30 (PSD Using the Effective Wind Area (Step 2), Roof Zone Location (Step 3), and Basic Wind Speed (Step 1), look up the appropriate Net Design Wind Pressure in Table 2, page 6. Use the Effective Wind Area value in the table which is smaller than the value calculated in Step 2. If the installation is located on a roof overhang, use Table 3, page 7. Hip Roof Q*<A<_2 �a Both downforce and uplift pressures must be considered in overall design. Refer to Section II, Step 1 for applying downforce and uplift pressures. Positive values are acting toward the surface. Negative values are acting away from the surface. .p 5 ..' UNI RAC Unirac Code -Compliant Installation Manual Table 2. p„,,30 (pso Roof and Wall SolarMount Basic Wind Speed, V (mph) i qc ` " ,r Source: ASCEISEI 7-05, Minimum Design Loads for Buildings and Other Structures, Chapter 6, Figure 6-3, P. 42-43. v,sc 6 - 90 100 110 120 130 140 150 1 170 �Re<d�e WindAnw I Zone (s� Downforce Uplift 1 Downforce Uplift Downforce Uplift Downforce Uplift `Downforce Uplift Downforce Uplift Downforce Uplift 4 Downforce Uplift 1 10 5.9 -14.6 7.3 -18.0 8.9 -21.8 10.5 -25.9 12.4 -30.4 14.3 -35.3 16.5 -40.5 21.1 -52.0 1 20 5.6 -14.2 6.9 -17.5 8.3 -21.2 9.9 -25.2 11.6 -29.6 13.4 -34.4 15.4 -39.4 ' 19.8 -50.7 d 1 50 5.1 -13.7 6.3 -16.9 7.6 -20.5 9.0 -24.4 10.6 -28.6 12.3 -33.2 14.1 -38.1 18.1 -48.9 1 100 1 4.7 -13.3 5.8 -16.5 7.0 -19.9 8.3 -23.7 9.8 -27.8 11.4 -32.3 13.0 -37.0 f 16.7 -47.6 2 10 5.9 -24.4 7.3 -30.2 -36.5 10.5 -43.5 12.4 -51.0 14.3 -59.2 16.5 -67.9 )21.1 -87.2 0 2 20 5.6 -21.8 6.9 1 -27.0 18.9 8.3 -32.6 9.9 1 -38.8 11.6 -45.6 13.4 -52.9 15.4 -60.71 19.8 -78.0 0 2 50 5.1 -18.4 6.3 -22.7 7.6 -27.5 9.0 -32.7 10.6 -38.4 12.3 -44.5 14.1 -51.1 18.1 -65.7 `0 2 100 4.7 -15.8 5.8 -19.5 7.0 -23.6 8.3 -28.1 9.8 -33.0 11.4 -38.2 13.0 -43.9 j 16.7 -56.4 6 5 3 20 5.6 -30.5 6.9 -37.6 8.3 45.5 909 54.2 11.6 -63.6 13.4 -73.8 15.4 84.7 19.8 -108.7 3 50 5.1 -22.1 + 6.3 -27.3 7.6 -33.1 9.0 -39.3 10.6 -46.2 12.3 -53.5 14.1 -61.5 ( 18.1 -78.9 3 100 4.7 -15.8 5.8 -19.5 7.0 -23.6 8.3 -28.1 9.8 •-33.0 11.4 -38.2 13.0 -43.9 ; 16.7 -56.4 f� 1 10 8.4 -13.3 10.4 -16.5 12.5 -19.9 _ 14.9 -23.7 17.5 -27.8 1 20.3 -32.3 23.3 -37.0 30.0 -47.6 1 20 7.7 -:3.0 1 9.4 -16.0 11.4 -19.4 _1 13.6 -23.0 16.0 -27.0 18.5 -31.4 21.3 -36.0 27.3 -46.3 y I 5o 6.7 - f 2.5 8.2 -15.4 10.0 -18.6 { 11.9 -22.2 13.9 -26.0 16.1 -30.2 18.5 -34.6 123.8 -44.5 1 100 5.9 -12.1 7.3 -14.9 8.9 -18.1 s 10.5 -21.5 12.4 -25.2 14.3 -29.3 16.5 -33.6 21.1 -43.2 2 10 8.4 -23.2 10.4 -28.7 -34.7 f 14.9 -41.3 17.5 -48.4 20.3 -56.2 23.3 -64.5 30.0 82.8 c 2 20 7.7 -21.4 9.4 -26.4 11.4, -31.9 13.6 -38.0 16.0 -44.6 18.5 -51.7 21.3 -59.3 27.3 -76.2 112.5 2 50 6.7 -18.9 jjj 8.2 -23.3 10.0 -28.2 11.9 -33.6 .13.9 -39.4 16.1 -45.7 18.5 -52.5 23.8 -67.4 n w 2 100 5.9 -17.0 7.3 -21.0 8.9 -25.5 10.5 -30.3 12.4 -35.6 14.3 -41.2 16.5 -47.3 21.1 -60.8 -42. 12.5 5 I. 14.9 -6 I.0 17.5 -71.6 20.3 -83. I 23.3 -95.4 30.0 -122.5 3 20 7.7 32. 110.4 9.4 39.6 1 1.4 -47.9 3 13.6 -57.1 .16.0 -67.0 18.5 -77.7 21.3 89.2 27.3 -114.5 3 50 6.7 -29.1 8.2 -36.0 10.0 -43.5 11.9 -51.8 13.9 -60.8 16.1 -70.5 18.5 -81.0 23.8 -104.0 3 100 5.9 -26.9 7.3 f -33.2 8.9 -40.2 10.5 -47.9 12.4 -56.2 14.3 -65.1 16.5 -74.81 21.1 t -96.0 ' 1 10 13.3 -14.6 16.5 -18.0 19.9 -21.8 23.7 -25.9 27.8 -30.4 32.3 -35.3 37.0 -40.5 47.6 -52.0 1 20 13.0 -13.8 + 16.0 -17.1 19.4 -20.7 23.0 -24.6 27.0 -28.9 31.4 -33.5 36.0 -38.4 46.3 -49.3 1 50 12.5 -12.8 15.4 -15.9 18.6 -19.2 22.2 -22.8 26.0 -26.8 30.2 -31.1 34.6 133.6 -35.7 1 44.5 -45.8 1 100 12.1 -12.1 14.9 -14.9 18.1 -18.1 y 21.5 -21.5 25.2 -25.2 29.3 -29.3 -33.6 C 43.2 -43.2 d 2 10 13.3 -17.0 16.5 -21.0 19.9 -25.5 23.7 -30.3 27.8 -35.6 1 32.3 -41.2 37.0 -47.3 147.6 -60.8 v Ln 2 20 13.0 - 16.3 16.0 -20. I 19.4 -24.3 23.0 -29.0 27.0 -34.0 31.4 -39.4 36.0 -45.3 ! 46.3 -58.1 2 50 12.5 -15.3 l 15.4 -18.9 18.6 -22.9 22.2 -27.2 26.0 -32.0 30.2 -37.1 34.6 -42.5 44.5 -54.6 n 2 100 12.1 14.6 f 14.9 -18.0 18.1 21.8 21.5 -25.9 25.2 -30.4 29.3 -35.3 33.6 40.5 43.2 52.0 `0 3 10 13.3 -17.0 16.5 -21.0 19.9 25.5 23.7 -30.3 27.8 -35.6 32.3 -41.2 37.0 -47.3 j 47.6 -60.8 lz 3 20 13.0 -16.3 16.0 -20.1 19.4 -24.3 23.0 -29.0 27.0 -34.0 31.4 -39.4 -45.3 j 46.3 -58.1 3 50 12.5 - 15.3 15.4 -18.9 18.6 -22.9 22.2 -27.2 26.0 -32.0 30.2 136.0 -37.1 34.6 -42.5 :, 44.5 -54.6 3 100 12.1 -14.6 14.9 -18.0 18.1 -21.8 21.5 -25.9 25.2 -30.4 29.3 -35.3 33.6 -40.5 -52.0 i 143.2 j 4 10 14.6 -15.8 18.0 -19.5 21.8 -23.6 jI 25.9 -28.1 30.4 -33.0 35.3 -38.2 40.5 -43.9 52.0 -56.4 4 20 13.9 -15.1 117.2 -18.7 20.8 -22.6 1 24.7 -26.9 29.0 -31.6 i 33.7 -36.7 38.7 -42. I 1 49.6 -54.1 4 50 13.0 -14.3 16.1 -17.6 19.5 -21.3 23.2 -25.4 27.2 -29.8 31.6 -34.6 36.2 -39.7 j 46.6 -51.0 4 100 12.4 -13.6 15.3 -16.8 18.5 -20.4 SI i 22.0 -24.2 25.9 -28.4 30.0 -33.0 34.4 -37.8 ' 44.2 -48.6 ro 4 500 10.9 -'12.1 1 13.4 -14.9 16.2 -18.1 19.3 -21.5 22.7 -25.2) 26.3 -29.3 30.2 -33.6 ; 38.8 -43.2 3 ° 1 5 10 14.6 -19.5 18.0 -24.1 21.8 -29.1 25.9 -34.7 30.4 -40.7 i 35.3 -47.2 140.5 -54.2 52.0 -69.6 5 20 13.9 -18.2 17.2 -22.5 20.8 -27.2 124.7 -32.4 29.0 -38.0 33.7 -44.0 38.7 -50.5 49.6 -64.9 5 50 13.0 -16.5 16.1 -20.3 19.5 -24.6 23.2 -29.3 27.2 -34.3 { 31.6 -39.8 36.2 -45.7 46.6 -58.7 5 100 12.4 -15. I ' 15.3 -18.7 18.5 -22.6 122.0 -26.9 25.9 -31.6 ` 30.0 -36.7 34.4 -42.1 44.2 -54. I 5 500 10.9 - 12.1 13.4 -14.9 16.2 -18.1 j 19.3 -21.5 22.7 -25.2 26.3 -29.3 30.2 1 -33.6 138.8 -43.2 Source: ASCEISEI 7-05, Minimum Design Loads for Buildings and Other Structures, Chapter 6, Figure 6-3, P. 42-43. v,sc 6 - SolarMount Unirac Code -Compliant Installation Manual ::'UNI RAC Table I pnet30 (psf Roof Overhang Source: ASCE/SEI 7-05, Minimum Design Loads for Buildings and Other Structures, Chapter 6, p. 44. Step 5: Determine the Topographic Factor, Kzt EXPOSURE c has open terrain with scattered obstruc- For the purposes of this code compliance document, the, tions having heights generally less than 30 feet. This Topographic Factor, &t, is taken as equal to one (1), meaning, category includes flat open country, grasslands, and all the installation is surrounded by level ground (less than 10% water surfaces in hurricane prone regions. slope). If the installation is not surrounded by level ground, EXPOSURE D has flat, unobstructed areas and water please consult ASCE 7-05, Section 6.5.7 and the local building surfaces outside hurricane prone regions. This catego- authority to determine the Topographic Factor. ry includes smooth mud flats, salt flats, and unbroken ice. Step 6: Determine Exposure Category (B, C, D) Determine the Exposure Category by using the following definitions for Exposure Categories. The ASCE✓SE17-05* defines wind exposure categories as follows: EXPOSURE s is urban and suburban areas, wooded areas, or other terrain with numerous closely spaced obstructions having the size of single family dwellings. Also see ASCE 7-05 pages 287-291 for further explanation and explanatory photographs, and confirm your selection with the local building authority. vase 7 Effective Basic Wind speed, V (mph) Wind Areo 90 1 100 1 110 120 130 140 150 170 zone (50 2 10 -21.0 25.9 -31.4 37.3 -43.8 -50.8 58.3 -74.9 i 2 20 -20.6 -25.5 -30.8 -36.7 -43.0 -49.9 -57.3 73.6 00 2 50 -20.1 -24.9 -30.1 -35.8 -42.0 48.7 -55.9 71.8 2 100 -19.8. 24.4 29.5 35.1 -41.2 47.8 54.9 -70.5 P_ 0 3 10 -34.6 42.7 -51.6 -61.5 -72.1 -83.7 -96.0 -123.4 0 3 20 -27.1 -33.5 -40.5 -48.3 -56.6 -65.7 -75.4 -96.8 0 3 50 -17.3 -21.4 -25.9 -30.8 -36.1 -41.9 -48.1 -61.8 I= 3 100 -10.0 -12.2 -14.8 -17.6 -20.6 -23.9 -27.4 -35.2 v 2 10 -27.2 -33.5 40.6 -48.3 56.7 -65.7 -75.5 -96.9 i 2 20 -27.2 -33.5 -40.6 -48.3 -56.7 65.7 75.5 96.9 00 2 50 -27.2 -33.5 -40.6 -48.3 -56.7 -65.7 -75.5 -96.9 N0 2 100 -27.2 -33.5 -40.6 -48.3 -56.7 -65.7 -75.5 -96.9 1 PA' 3 20 -41.2 -50.9 ,68.6 -73 .3 -86.0 -99 8 -114.5 -147.01 0 3 100 -30.9 -38.1 -46.1 -54.9 -64.4 -74.7 -85.8 ; -110.1 2 10 -24.7 -30.5 ' 36.9 -43.9 -51.5 -59.8 -68.6 88.1 as 2 20 -24.0 -29.6 -35.8 -42.6 -50.0 -58.0 -66.5 85.5 v 2 50 -23.0 -28.4 t -34.3 -40.8 -47.9 -55.6 -63.8 -82.0 Q 2 100 -22.2 -27.4 -33.2 -39.5 -46.4 -53.8 -61.7 -79.3 0 3 10 -24.7 i 30.5 36.9 -43.9 =51.5 59.8 68.6 88.1 3 20 -24.0 I -29.6 -35.8 -42.6 -50.0 -58.0 -66.5 I -85.5 `0 3 50 23.0 I 28.4 34.3 -40.8 -47.9 -55.6 -63.8 -82.0 3 100 22.2' 27.4 -33.2 -39.5 ' , -46.4 -53.8 -61.7 -79.3 Source: ASCE/SEI 7-05, Minimum Design Loads for Buildings and Other Structures, Chapter 6, p. 44. Step 5: Determine the Topographic Factor, Kzt EXPOSURE c has open terrain with scattered obstruc- For the purposes of this code compliance document, the, tions having heights generally less than 30 feet. This Topographic Factor, &t, is taken as equal to one (1), meaning, category includes flat open country, grasslands, and all the installation is surrounded by level ground (less than 10% water surfaces in hurricane prone regions. slope). If the installation is not surrounded by level ground, EXPOSURE D has flat, unobstructed areas and water please consult ASCE 7-05, Section 6.5.7 and the local building surfaces outside hurricane prone regions. This catego- authority to determine the Topographic Factor. ry includes smooth mud flats, salt flats, and unbroken ice. Step 6: Determine Exposure Category (B, C, D) Determine the Exposure Category by using the following definitions for Exposure Categories. The ASCE✓SE17-05* defines wind exposure categories as follows: EXPOSURE s is urban and suburban areas, wooded areas, or other terrain with numerous closely spaced obstructions having the size of single family dwellings. Also see ASCE 7-05 pages 287-291 for further explanation and explanatory photographs, and confirm your selection with the local building authority. vase 7 J: U N I RAC Unirac Code -Compliant Installation Manual SolarMount Step 7: Determine adjustment factor for height and exposure category, A Using the Exposure Category (Step 6) and the roof height, h (ft), look up the adjustment factor for height and exposure in Table 4. Step 8: Determine the Importance Factor, I Determine if the installation is in a hurricane prone region. Look up the Importance Factor, I, Table 6, page 9, using the occupancy category description and the hurricane prone region status. Step 9: Calculate the Design Wind Load, Net (psf) Multiply the Net Design Wind Pressure, pnet3o (psf) (Step 4) by the adjustment factor for height and exposure, A (Step 7),the Topographic Factor, Kat (Step 5), and the Importance Factor, I (Step 8) using the following equation: pnet (Psf) = AKztl pnet30 pnet (psf) = Design Wind Load (10 psf minimum) A = adjustment factor for height and exposure category (Step 7) KZt = Topographic Factor at mean roof height, h (ft) (Step 5) I = Importance Factor (Step 8) pnet3o (Psf) = net design wind pressure for Exposure B, at height = 30, I = 1 (Step 4) Use Table 5 below to calculate Design Wind Load. The Design Wind Load will be used in Part II to select the appropriate SolarMount Series rail, rail span and foot spacing. Table 4. Adjustment Factor (A) for Roof Height & Exposure Category Mean roof height (() B Exposure C r D 15 1.00 1.21 1.47 20 1.00 1-29-1.55 25 1.00 1.35' 1.61 30 1.00 c 1.66 35 1.05 1.45 1.70 40 1.09 1.49 1.74 45 1.12 1.53 1.78 5o 1.16 1.56 1.81 55 1.19 1.59 1.84 60 1.22 1.62 1.87 Source: ASCE/SEI 1-05, Minimum Design Loads for Buildings and Other Structures, Chapter 6, Figure 6-3, p. 44. Table S.Worksheet for Components and Cladding Wind Load Calculation: IBC 2006,ASCE 7-05 Variable Description Symbol Value Unit Step ' Reference Buil'din`g Height �h fi - ! Building, Least Horizontal Dimension ft :ROOf,PiRcli d_e_ grees Exposure Category 6 Basi'cWind speed V_ ` – mph_ I Figure,l= Effective Wind Area sf 2 Roof Zone Setback Length a rfi 3 TabI I—Z Roof Zone Location 3 Figure 2 Net DesignWind4Pressure Dpne00� _ psf`, 4 Table 2,37 Topographic Factor Kzt x 5 Adjustment factor t37r l -eight and expos_ u_re c_a_tegory—A x 7'-"��'"Ta6le_4= Importance Factor I x 8 Table 5 lt6q Design Wind Load _ _-pnet_� _ psf 9 , SolarMount Unirac Code -Compliant Installation Manual :F U N I RAC Table b. Occupancy Category Importance Factor Source: IBC 2006, Table 1604.5, Occupancy Category of Buildings and other structures, p. 281; ASCE/SEI 7-05, Minimum Design Loads for Buildings and Other Structures, Table 6-1, p. 77 Non -Hurricane Prone Regions and Hurricane Prone Regions Huricone Pmne Re- whh Basic Wind SpeedV = gions with Bask Wind Category Category Deskription Building Type Examples 85-100 mph, and Alaska SpeedV > I00mph I Buildings and other Agricultural facilities 0.87 0.77 structures that Certain Temporary facilities represent a low Minor Storage facilities hazard to human life in the event of failure, including, but limited to: All buildings and other II structures except those I I listed in Occupancy ✓ Categories I,111, and IV. Buildings and other Buildings where more than 300 people congregate structures that Schools with a capacity more than 250 1.15 1.15 III represent a substantial Day Cares with a capacity more than 150 hazard to human life in Buildings for colleges with a capacity more than 500 the event of a failure, Health Care facilities with a capacity more than 50 or more including, but not limited resident patients to: Jails and Detention Facilities Power Generating Stations Water and Sewage Treatment Facilities Telecommunication Centers Buildings that manufacture or house hazardous materials Buildings and other Hospitals and other health care facilities having surgery or 1.15 1.15 structures designated emergency treatment IV as essential facilities, Fire, rescue, ambulance and police stations including, but not limited Designated earthquake, hurricane, or other emergency to: shelters Designated emergency preparedness communication, and operation centers Power generating stations and other public utility facilities required in an emergency Ancillary structures required for operation of Occupancy Category IV structures Aviation control towers, air traffic control centers, and emergency aircraft hangars Water storage facilities and pump structures required to maintain water pressure for fire suppression Buildings and other structures having critical national defense functions Source: IBC 2006, Table 1604.5, Occupancy Category of Buildings and other structures, p. 281; ASCE/SEI 7-05, Minimum Design Loads for Buildings and Other Structures, Table 6-1, p. 77 UNI RAC Unirac Code -Compliant Installation Manual SolarMount Part H. Procedure to Select Rail Span and Rail Type [2.1.] Using Standard Beam Calculations, Structural Engineering Methodology The procedure to determine the Unirac SolarMount series rail type and rail span uses standard beam calculations and structural engineering methodology. The beam calculations are based on a simply supported beam conservatively, ignoring the reductions allowed for supports of continuous beams over multiple supports. Please refer to Part I for more information on beam calculations, equations and assumptions. In using this document, obtaining correct results is dependent upon the following: 1. Obtain the Snow Load for your area from your local building official. 2. Obtain the Design Wind Load, pnet. See Part I (Procedure to Determine the Design Wind Load) for more information on calculating the Design Wind Load. 3. Please Note: The terms rail span and footing spacing are interchangeable in this document. See Figure 3 for illustrations. 4. To use Table 8 and Table 9 the Dead Load for your specific installation must be less than 5 psf, including modules and Unirac racking systems. If the Dead Load is greater than 5' psf, see your Unirac distributor, a local structural engineer or contact Unirac. The following procedure will guide you in selecting a Unirac rail for a flush mount installation. It will also help determine the design loading imposed by the Unirac PV Mounting Assembly that the building structure must be capable of .supporting. Figure 3. Rail span and footing spacing are interchangeable.' Ra:IS Aad 0,-P \ 00, SPaOjn 8 Po,, 10 Step 1: Determine the Total Design Load The Total Design Load, P (psf) is determined using ASCE 7-05 2.4.1 (ASD Method equations 3,5,6 and 7) by adding the Snow Loadl, S (psf), Design Wind Load, pnet (psf) from Part I, Step 9 and the Dead Load (psf). Both Uplift and Downforce Wind Loads calculated in Step 9 of Part 1 must be investigated. Use Table 7 to calculate the Total Design Load for the load cases. Use the maximum absolute value of the three downforce cases and the uplift case for sizing the rail. Use the uplift case only for sizing lag bolts pull out capacities (Part II, Step 6). P (ps)) = LOD + LOSi (downforce case 1) P (psf) = LOD,+ LOpnet (downforce case 2) P (psf) = I.OD + 0.75S1 '+ 0.75pnet (downfoa case 3) P (psf) = 0.6D + LOpnet (uplift) . D = Dead Load (psf) S = Snow Load (psf) pnet = Design Wind Load (psf) (Positive for downforce, negative for uplift) The maximum Dead Load, D (psf), is 5 psf based on market research and internal data. 1 Snow Load Reduction - The snow load can be reduced according to Chapter 7 of ASCE 7-05. The reduction is a function of the roof slope, Exposure Factor, Importance Factor and Thermal Factor. Please refer to Chapter 7 of ASCE 7-05 for more information. Note: Modules must be centered symmetrically on the rails (+/- 2 *), as shown in Figure 3. If this is not the case, call Unirac for assistance. SolarMount Unirac Code -Compliant Installation Manual ::' U N I RAC Table 7. ASCE 7 ASD Load Combinations Desaiption Variable Downjorce Case 1 Downfarce Case 2 Do"force Case 3 ` uplift units Dead Load D i 1.0 x 1.0 x I 1.0,X 0.6 x psf Snow Load S 1 1.0 x + i 0.75 x + psf Design Wind Load Pnet 1.0 x + 0.75 x + 1.0 x - psf Total Design Load P i j psf Note: Table to be filled out or attached for evaluation. 25 Step 2: Determine the Distributed Load on the rail, Step 3: Determine Rail Span/ L -Foot Spacing W (p If) Using the distributed load, w, from Part II, Step 2, look up the Determine the Distributed Load, w (plf), by multiplying the allowable spans, L, for each Unirac rail type, SolarMount (SM) module length, B (ft), by the Total Design Load, P (psf) and and SolarMount Heavy Duty (HD). dividing by two. Use the maximum absolute value of the three 200 downforce cases and the Uplift Case. We assume each module There are two tables, L -Foot SolarMount Series Rail Span is supported by two rails. Table and Double L -Foot SolarMount Series Rail Span Table. w = PB/2 The L -Foot SolarMount Series Rail Span Table uses a single SM L -foot connection to the roof, wall or stand-off. The point SM load connection from the rail to the L -foot can be increased w = Distributed Load (pounds per linear foot plf) by using a double L -foot in the installation. Please refer to the B = Module Length Perpendicular to Rails (ft) Part III for more installation information. P = Total Design Pressure (pounds per square foot, psf) SM SM SM Table 8. L -Foot SolarMount Series Rail Span 2.5 SM - SolarMount HD - SolarMount Heavy Duty SM Span w= Distributed Load (plo (R) 20 25 30 40 50 60 80 100 120 140 160 80 200 220 240 260 280 300 2 SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM 2.5 SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM 3 SM SM SM SM SM SM SM SM SM SM SM SM SM SM - SM 3.5 SM SM SM SM SM SM SM SM SM SM SM SM SM SM 4 SM SM SM SM SM SM SM SM S SM SM HD 4.5 SM SM SM SM SM SM SM SM M SM HD 5 SM SM SM SM SM SM SM SM HD HD 5.5 SM SM: SM SM SM SM' SM HD HD 6 SM SM SM SM SM SM HD DHQ HD 6.5 SM SM SM SM SM SM HD HD 7 SM SM SM SM SM HD HD HD 7.5 SM SM SM SM SM HD HD HD 8 SM SM SM SM HD HD HD 8.5 SM SM SM HD HD HD HD 9 SM SM SM HD HD HD HD 9.5 SM SM SM HD HD HD 10 SM SM HD HD HD HD 10.5 SM SM HD HD HD HD II SM HD HD HD HD 11.5 SM HD HD HD HD 12 HD HD HD HD 12.5 HD HD HD HD 13 HD HD HD HD 13.5 HD HD HD 14 HD HD HD 14.5 HD HD HD 15 HD HD HD 15.5 HD HD 16 HD HD 17 HD :." W N I RAC Unirac Code -Compliant Installation Manual SolarMount Table 9. Double L -Foot SolarMount Series Rail Span SM - SolarMount HD - SolarMount Heavy Duty Span w = Disvibmed Load (pin (R) 20 25 30 40 50 60 80 100 120 140 160 180 200 220 240 260 280 300 2 SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM 2.5 SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM 3 SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM SM 3.5 SM SM SM SM SM SM SM SM SM SM SM SM SM SM HD HD HD HD 4 SM SM SM SM SM SM SM - SM SM SM SM HD HD HD HD HD HD 4.5 SM SM SM SM SM SM SM SM SM SM HD HD HD HD HD HD 5 SM SM SM SM SM SM _ SM SM ' HD HD HD HD HD HD 5.5 SM SM SM SM SM SM SM HD HD HD HD HD HD 6 SM SM SM SM SM SM '{ _ HD HD HD HD HD HD 6.5 SM SM SM SM SM SM 'HD HD HD HD HD 7 SM SM SM SM SM HD HD HD HD HD 7.5 SM SM SM SM _SM HD HD HD HD 8 SM SM SM SM HD HD HD HD 8.5 SM SM SM HD HD HD HD 9 SM SM SM HD HD HD HD 9.5 SM SM SM _ HD HD HD 10 SM SM t HD HD HD HD 10.5 SM SM HD HD HD HD II SM HD HD HD HD 11.5 SM HD HD HD HD 12 HD HD HD HD 12.5 HD HD HD HD' 13 HD HD HD HD 13.5 HD HD HD 14 HD HD HD 14.5 HD HD HD 15 HD HD HD 15.5 HD HD 16 HD HD 17 HD Step 4: Select Rail Type Selecting a span and rail type affects the price of your installation. Longer spans produce fewer wall or roof penetrations. However, longer spans create higher point load forces on the building structure. A point load force is the amount of force transferred to the building structure at each connection. It is the installer's responsibility to verify that the building structure is strong -enough to support the point load forces. Step 5: Determine the Downforce Point Load, R (lbs), at each connection based on rail span When designing the Unirac Flush Mount Installation, you must consider the downforce Point Load, R (Ibs) on the roof structure. The Downforce, Point Load, R (lbs), is determined by multiplying the Total Design Load, P (psf) (Step 1) by the Rail Span, L (ft) (Step 3) and the Module Length Perpendicular to the Rails, B (ft) divided by two. R (lbs) = PLB/2 R = Point Load (lbs) P = Total Design Load (psf) L = Rail Span (ft) B = Module Length Perpendicular to Rails (ft) It is the installer's responsibility to verify that the building structure is strong enough to support the maximum point 12 loads calculated according to Step 5. SolarMount Unirac Code -Compliant Installation Manual :F U N I RAC Table 10. Downforce Point Load Calculation Total Design Load (downforce) (max of case 1,2 or 3) P psf Step I Module length perpendicular to rails B x ft Rail Span L x ft Step 4 /2 Downforce Point Load R lbs Step 6: Determine the Uplift Point Load, R (lbs), at each connection based on rail span You must also consider the Uplift Point Load, R (lbs), to determine the required lag bolt attachment to the roof (building) structure. Table 11. Uplift Point Load Calculation Total Design Load (uplift) P psf Step I Module length perpendicular to rails B x ft Rail Span L x ft Step 4 /2 Uplift Point Load R lbs Table 12. Lag pull-out (withdrawal) capacities (lbs) iti typical roof lumber (ASD) Sources:American Wood Council, NDS 2005, Table 11.2A, 11.3.2A. Notes: (1)Thread must be embedded in the side grain of a rafter or other structural member integral with the building structure. (2) Log bolts must be located in the middle third of the structural member. (3) These values are not valid for wet service. . (4)This table does not include shear capacities. If necessary, contact a local engineer to specify lag bolt size with regard to shear forces. (5) Install lag bolts with head and washer flush to surface (no gap). Do not over -torque. (6) Withdrawal design values for lag screw connections shall be multiplied by applicable adjustment factors if necessary. See Table 10.3.1 in the American Wood Council NDS for Wood Construction. *Use flat washers with lag screws. Use Table 12 to select a lag boli size and embedment depth to satisfy your Uplift Point Load Force, R (lbs), requirements. It is the installer's responsibility to verify that the substructure and attachment method is strong enough to support the maximum point loads calculated according to Step 5 and Step 6. ftp 13 Lag screw specifications Specific S/b" shaft•* gravity per inch thread depth Douglas Fir, Larch 0.50 266 % 1 0 Douglas Fir, South 0.46 235 Engelmann Spruce, Lodgepole Pine (MSR 1650 f & higher) 0.46 235 Hem, Fir, Redwood (close grain) 0.43 212 Hem, Fir (North) 0.46 235 Thread Southern Pine 0.55 307 depth Spruce, Pine, Fir 0.42 20S L Spruce, Pine, Fir (E of 2 million psi and higher grades of MSR and MEL) 0.50 266 Sources:American Wood Council, NDS 2005, Table 11.2A, 11.3.2A. Notes: (1)Thread must be embedded in the side grain of a rafter or other structural member integral with the building structure. (2) Log bolts must be located in the middle third of the structural member. (3) These values are not valid for wet service. . (4)This table does not include shear capacities. If necessary, contact a local engineer to specify lag bolt size with regard to shear forces. (5) Install lag bolts with head and washer flush to surface (no gap). Do not over -torque. (6) Withdrawal design values for lag screw connections shall be multiplied by applicable adjustment factors if necessary. See Table 10.3.1 in the American Wood Council NDS for Wood Construction. *Use flat washers with lag screws. Use Table 12 to select a lag boli size and embedment depth to satisfy your Uplift Point Load Force, R (lbs), requirements. It is the installer's responsibility to verify that the substructure and attachment method is strong enough to support the maximum point loads calculated according to Step 5 and Step 6. ftp 13 ::• UNI RAC Unirac Code -Compliant Installation Manual SolarMount Part III. Installing SolarMount The Unirac Code -Compliant Installation Instructions support applications for building permits for photovoltaic arrays using Unirac PV module mounting systems. This manual, SolarMount Planning and Assembly, governs installations using the SolarMount and SolarMount HD (Heavy Duty) systems. [3.1.] SolarMount® rail components ORail — Supports PV modules. Use two per row of modules. 6105-T5 aluminum extrusion, anodized. © Rail splice — Joins and aligns rail sections into single length of rail. It can form either a rigid or thermal expansion joint, 8 inches long, predrilled. 6105-T5 aluminum extrusion, anodized. © self -drilling screw —(No. 10 x 3/4") — Use 4 per rigid splice or 2 per expansion joint. Galvanized steel. OL -foot — Use to secure rails either through roofing material to building structure or standoffs. Refer to loading tables for spacing. Note: Please contact Unirac for use and specification of double L -foot. © L -foot bolt (3/8" x 3/4") — Use one per L -foot to secure rail to L -foot. 18-8A2 stainless steel. OFlange nut (3/8 ") — Use one per L -foot to secure rail to L -foot. 18-8A2 stainless steel. OFlattop standoff (optional) (3/8 ") — Use standoffs to increase the height of the array above the surface of the roof or to allow for the use of flashings. Use one per L -foot. One piece: Service Condition 4 (very severe) zinc -plated -welded steel. Includes 3/8 " x 1/4" bolt with ft" 14 M Figure 4. SolarMount standard rail components. lock washer for attaching L -foot. Flashings: Use one per standoff. Unirac offers appropriate flashings for both standoff types. Note: There is also a flange type standoff that does not require an L -foot. OAluminum two-peice standoff (optional) (4" and 7") — Use one per L -foot. Two:piece: 6105-T5 aluminum extrusion. Includes 3/8" x /4' serrated flang5 bolt with EPDM washer for attaching L -foot, and two /16" lag bolts. OLag screw for L -foot (5/16") — Attaches standoff to rafter. 0 Top Mounting Clamps mTop Mounting Grounding Clips and Lugs Installer supplied materials: • Lag screw for L-foot—Attaches L -foot or standoff to rafter. Determine the length and diameter based on pull- out values. If lag screw head is exposed to elements, use stainless steel. Under flashings, zinc plated hardware is adequate. • Waterproof roofing sealant — Use a sealant appropriate to your roofing material. Consult with the company currently providing warranty of roofing. SolarMount Unirac Code -Compliant Installation Manual .8P U N 1 RAC [3.2.] Installing SolarMount with top mounting clamps This section covers SolarMount rack assembly where the installer has elected to use top mounting clamps to secure modules to the rails. It details the procedure for flush mounting SolarMount systems to a pitched roof tMid Clamp .. End CIO L -foot SolarMount Rail SolarMount Rail Figure 5. Exploded view of a flushmount installation mounted with L feet. Table 14. Clamp kit part quantities Table 15.Wrenches and torque Wrench End Mid %4" module %"X %" %4" flange / Modules clamps clamps clamp bolts safety bolts nuts L 2 4 2 6 2 8 3 4 4 8 2 10 4 4 6 10 2 12 5 4 8 12 2 14 6 4 10 14 2 16 7 4 12 16 2 18 8 4 14 18 2 20 Table 15.Wrenches and torque Wrench Recommended size torque (ft -lbs) %4" hardware 7/is" 5 - 10 Ma- hardware '/s" Torques are not designated for use with wood connectors All top down clamps must be installed with anti - seize to prevent galling and provide uniformity in clamp load. UniRac Inc recommends Silver Grade LocTite Anti -Seize Item numbers: 38181, 80209,76732,76759,76764, 80206, and 76775, or equivalent. 1/4" - 20 hardware used in conjunction with top down clamps must be installed to 5 -10 ft -lbs of torque. When using UGC -1, UGC -2, WEEB 9.5 and WEEB 6.7,114" - 20 hardware must be installed to 10 ft -lbs or torque. Additionally, when used with a top down clamp, the module frame cross section must be boxed shaped as opposed to a single, 1 -shaped member. Please refer to installation supplement 910: Galling and Its Prevention for more information on galling and anti -seize and installation manual 225: Top Mounting Unirac Grounding Clips and WEEBLugs for more information on Grounding Clips. " qb, 15 N I RACe Unirac Code -Compliant Installation Manual SolarMount [3.2.1] Planning your SolarMount® installations The installation can be laid out with rails parallel to the rafters The width of the installation area equals the length of one or perpendicular to the rafters. Note that SolarMount rails module. make excellent straight edges for doing layouts. The length of the installation area is equal to: Center the installation area over the structural members as much as possible. Leave enough room to safely move around the array during installation. Some building codes require minimum clearances around such installations, and the user should be directed to also check `The Code'. 16 • the total width of the modules, • plus 1 inch for each space between modules (for mid - clamp), • plus 3 inches (11/2 inches for each pair of end clamps). Peak LU V Low -profile mode High-profile mode Gutter Figure 6. Rails maybe placed parallel or perpendicular to rafters. , SolarMount Unirac Code -Compliant Installation Manual :."UNI RAC [3.2.2] Laying out L -feet L -feet (Fig. 7) can be used for attachment through existing roofing material, such as asphalt shingles, sheathing or sheet metal to the building structure. Use Figure 8 or 9 below to locate and mark the position of the L -feet lag screw holes within the installation area. JP If multiple rows are to be installed adjacent to one another, it is not likely that each row will be centered above the rafters. Figure 7 Adjust as needed, following the guidelines in Figure 9 as closely as possible. Overhang 25% L max 25% of module Foot spacing/—1 width Rail S an "LII Ii I II � ii 11 II II 11 1 I! 50% of module 13/4 1, li t width (TYP) It Note: Modules must be Lower roof edge Rafters centered symmetrically on the (Building Structure) rails (+/- 2*). If this is not the case, call Unirac for assistance. r Figure 8. Layout with rails perpendicular to rafters. Installing L -feet Drill pilot holes through the roof into the center of the rafter at each L -foot lag screw hole location. Squirt sealant into the hole, and on the shafts of the lag screws. Seal the underside of the L - feet with a suitable sealant. Consult with the company providing the roofing warranty. Securely fasten the L -feet to the roof with the lag screws. Ensure that the L -feet face as shown in Figure 8 and 9. For greater ventila- tion, the preferred method is to place the single -slotted square side of the L -foot against the roof with the double -slotted side perpen- dicular to the roof. If the installer chooses to mount the L -foot with the long leg against the roof, the bolt slot closest to the bend must be used. rtgure Y. Layout wim railsparauet to rafters. P'p 17 ::' UNI RAC Unirac Code -Compliant Installation Manual SolarMount [3.2.3] Laying out standoffs Standoffs (Figure 10) are used to increase the height of the array above the surface of the roof. Pair each standoff with a flashing to seal the lag bolt penetrations to the roof. Use Figure 11 or 12 to locate and mark the location of the standoff lag screw holes within the installation area. Remove the tile or shake underneath each standoff location, exposing the roofing underlayment. Ensure that the standoff base lies flat on the underlayment, but remove no more mate- rial than required for the flashings to be installed properly. The standoffs must be firmly attached to the building structure. r Figure 10. Raised flange standoff (left) and flat top standoff used in conjunction with an L foot. Overhang 25% L max ' Foot spacing/ �� 25% module width l each end Rail�an, L !i module width (TYP) L' 1 - J Lower roof edge l; Rafters---/' (Building Structure) Note: Modules must be centered symmetrically on the rails 2*). If this is not the case, call Unirac for assistance. Figure 11. Layout with rails perpendicular to rafters.perpendicular to rafters. Overhang 25% of 50% B typical module width (TYP) 7/16" :v o � a i I Foot spacing/ -► 1-7/16" / I Raiff Span Overhang 25% L,mox Lower roof edge �\ t Rafters (Building Structure) Note: Modules must be centered symmetrically on the rails (+/- 2*). If this is not the case, call Unirac for assistance. Figure 12. Layout with rails parallel to rafters. If multiple high-profile rows are to be installed adjacent to each other, it may not be possible for each row to be centered above the rafters. Adjust as needed, following the guidelines of Fig. 12 as closely as possible. Installing standoffs Drill 3/16 inch pilot holes through the underlayment into the center of the rafters at each standoff location. Securely fasten each standoff to the rafters with the two 5/16" lag screws. Ensure that the standoffs face as shown in Figure 11 or 12. Unirac steel standoffs (1 5/8 " O.D.) are designed for collared flashings available from Unirac. Aluminum two-piece standoffs (11/8 " O.D.) take all -metal flashings, also available from Unirac. Install and seal flashings and standoffs using standard building practices or as the company providing roofing warranty directs. SolarMount Unirac Code -Compliant Installation Manual ::'UNI RAC [3.2.4] Installing SolarMount rails Keep rail slots free of roofing grit or other debris. Foreign matter will cause bolts to bind as they slide in the slots. Installing Splices. If your installation uses SolarMount splice bars, attach the rails together (Fig. 13) before mounting the rails to the footings. Use splice bars only with flush installations or those that use low -profile tilt legs. Although structural, the joint is not as strong as the rail itself. A rail should always be supported by more than one footing on both sides of the splice. (Reference installation manual 908, Splices/Expansion Joints.) If using more than one splice per rail, contact Unirac concerning thermal expansion issues. Mounting Rails on Footings. Rails may be attached to either of two mounting holes in the L -feet (Fig. 14). Mount in the lower hole for a low profile, more aesthetically pleasing installation. Mount in the upper hole for a higher profile, which will maximize airflow under the modules. This will cool them more and may enhance performance in hotter climates. Slide the %-inch mounting bolts into the footing bolt slots. Loosely attach the rails to the footings with the flange nuts. Ensure that the rails are oriented to the footings as shown in Figure 8, 9, 11, or 12, whichever is appropriate. Aligning the Rail Ends. Align one pair of rail ends to the edge of the installation area (Fig. 15 or Fig. 16). Figure 13. Splice bars slide into the footing bolt slots of SolarMount rail sections. Clamping bolt slot Mounting slots Footing bolt slot The opposite pair of rail ends will overhang the side of the installation Figure 14. Foot -to -rail splice attachment area. Do not trim them off until the installation is complete. If the rails are perpendicular to the rafters (Fig. 15), either end of the rails can be aligned, but the first module must be installed at the aligned end. If the rails are parallel to the rafters (Fig. 16), the aligned end of the rails must face the lower edge of the roof. Securely tighten all hardware after alignment is complete (20 ft lbs). Mount modules to the rails as soon as possible. Large temperature changes may bow the rails within a few hours if module placement is delayed. Edge of installation area --I v Figure 15. Rails perpendicular to the rafters. Edge of installation area Figure 16. Rails parallel to the rafters. P.Z. 19 :e° U N I RACc Unirac Code -Compliant Installation Manual SolarMount [3.2.5] Installing the modules Pre -wiring Modules. If modules are the Plug and Play type, no pre -wiring is required, and you can proceed directly to "Installing the First Module" below. If modules have standard J -boxes, each module should be pre -wired with one end of the intermodule cable for ease of installation. For safety reasons, module pre -wiring should not be performed on the roof. Leave covers off J -boxes. They will be installed when the modules are installed on the rails. Installing the First Module. In high-profile installations, the safety bolt and flange nut must be fastened to the module bolt slot at the aligned (lower) end of each rail. It will prevent the lower end clamps and clamping bolts from sliding out of the rail slot during installation. If there is a return cable to the inverter, connect it to the first module. Close the J -box cover. gecure the first module with T -bolts and end clamps at the aligned end of each rail. Allow half an inch between the rail ends and the end clamps (Fig.18). Finger tighten flange nuts, center and align the module as needed, and securely tighten the flange nuts (5-10 ft lbs). Installing the Other Modules. Lay the second module face down (glass to glass) on the first module. Connect intermodule cable to the second module and close the J -box cover. Turn the second module face up (Fig. 17). With T -bolts, mid -clamps and flange nuts, secure the adjacent sides of the first and second modules. Align the second module and securely tighten the flange nuts (Fig. 19). For a neat installation, fasten wire management devices to rails with self -drilling screws. Repeat the procedure until all modules are installed. Attach the outside edge of the last module to the rail with end clamps. Trim off any excess rail, being careful not to cut into the roof. Allow half an inch between the end clamp and the end of the rail (Fig. 18). Check that all flange nuts on T -bolts are torqued to 5-10 ft lbs j �1 J-boYxes Figure 17 I Module frame 1/2" minimum x.1/4" module bolt -- and flange nut End clamp Rail Figure 18 Figure 19 Module frames 1/4" module bolt and flange nut � Y ~�— Rail Mid clamp i High -lipped module (cross section) Spacer Low -lipped module (cross section) Y i i SolorMou ' rail SolarMount rail r t t f 1 Figure 20. Mid clamps and end clamps for lipped frame modules are identical. A spacer for the end clamps is necessary only if the lips are located high on the module frame. v.8. 20 0 SolarMount Unirac Code -Compliant Installation Manual ::'UNI RAC [3.3] Installing SolarMount with bottom mounting clips This section covers SolarMount rack assembly where the installer has elected to use bottom mounting clamps to secure modules to the rails. It details the procedure for flush mounting SolarMount systems to a pitched roof. PV modules.(face down) SolorMount roil Figure 21. SMR and CB components Table 16. Wrenches and torque Wrench Recommended size torque (ft -lbs) '/e' hardware %e 5 '/s" hardware %b 20 Note:Torque specificotions do not apply to log bolt connections. Footing ,bolt slot Soitom mounting clip QStainless steel hardware can seize up, a process called galling. To significantly reduce its likelihood, (1) apply lubricant to bolts, preferably an anti -seize lubricant available at auto parts stores, (2) shade hardware prior to installation, and (3) avoid spinning on nuts at high speed. See Installation Supplement 910, Galling and Its Prevention, at www.unirac.com. ftp 21 8HU, N I RAC Unirac Code -Compliant Installation Manual SolarMount [3.3.1] Planning the installation area Decide on an arrangement for clips, rails, and L -feet (Fig. 22) Use Arrangement A if the full width of the rails contacts the module. Otherwise use Arrangement B. Caution: If you choose Arrangement B, either (1) use the upper mounting holes of the L feet or (2) be certain that the L feet and clip positions don't conflict. If rails must be parallel to the rafters, it is unlikely that they can be spaced to match rafters. In that case, add structural supports – either sleepers over the roof or mounting blocks beneath it. These additional members must meet code; if in doubt, consult a professional engineer. Never secure the footings to the roof decking alone. Such an arrangement will not meet code and leaves the installation and the roof itself vulnerable to severe damage from wind. Leave enough room to safely move around the array during installation. The width of a rail -module assembly equals the length of one module. Note that L -feet may extend beyond the width of the assembly by as much as 2 inches on each side. The length of the assembly equals the total width of the modules. P.S. 22 Distance between lag bolt centers 2" –•1 tom– 2" — Distance between — module mounting holes PV module I Q Module boll Clip - Roil L -foot Lag boll Distance between lag bolt centers Distance between module mounting holes f Figure 22. Clip Arrangements A and B SolarMount Unirac Code -Compliant Installation Manual :F U N I RAC [3.3.2] Laying out the installing L -feet L -feet are used for installation through existing low profile roofing material, such as asphalt shingles or sheet metal. They are also used for most ground mount installations. To ensure that the L -feet will be easily accessible during flush installation: • Use the PV module mounting holes nearest the ends of the modules. • Situate the rails so that footing bolt slots face outward. 'The single slotted square side of the L -foot must always lie against the roof with the double -slotted side perpendicular to the roof. Foot spacing (along the same rail) and rail overhang depend on design wind loads. Install half the L -feet: • If rails are perpendicular to rafters (Fig. 23), install the feet closest to the lower edge of the roof. • If rails are parallel to rafters (Fig 24), install the feet for one of the rails, but not both. For the L -feet being installed now, drill pilot holes through the roofing into the center of the rafter at each lag screw hole location. Squirt sealant into the hole and onto the shafts of the lag screws. Seal the underside of the L -feet with a sealant. Securely fasten the L -feet to the building structure with the lag screws. Ensure that the L -feet face as shown in Figure 23 or Figure 24. Hold the rest of the L -feet and fasteners aside until the panels are ready for the installation. I'I I'I Install Second 06 II � II i II li SolarMoulit Rails II II i 1441, Instal First —II II lower I I roof edge Rafters Figure 23. Layout with rails perpendicular to rafters. Rafters Install L -Feet First -------W -- -N. ----- Blocks Install L -Feet Second Figure 24. Layout with rails parallel to rafters. v.,$e 23 .:v' U N I RA(Unirac Code -Compliant Installation Manual SolarMount [3.3.3] Attaching modules to the rails Lay the modules for a given panel face down on a surface that will not damage the module glass. Align the edges of the modules and snug them together (Fig. 21, page22). Trim the rails to the total width of the modules to be mounted. Place a rail adjacent to the outer mounting holes. Orient the footing bolt slot outward. Place a clip slot adjacent to the mounting holes, following the arrangement you selected earlier. Assemble the clips, mounting bolts, and flange nuts. Torque the flange nuts to 5 foot-pounds. Wire the modules as needed. For safety reasons, module wiring should not be performed on a roof. For a neat installation, fasten cable clamps to rails with self -tapping screws. [3.3.4] Installing the module -rail assembly Bring the module -rail assembly to the installation site. Keep rail slots free of debris that might cause bolts to bind in the slots. Consider the weight of a fully assembled panel. Unirac recom- mends safety lines whenever lifting one to a roof. Align the panel with the previously installed L -feet. Slide.3/8 inch L -foot mounting bolts onto the rail and align them with the L -feet mounting holes. Attach the panel to the L -feet and finger tighten the flange nuts. Rails may be attached to either of two mounting holes in the footings (Fig. 25). • Mount in the lower hole for a low, more aethetically pleasing installation. • Or mount in the upper hole to maximize a cooling airflow under the modules. This may enhance perfor- mance in hotter climates. Adjust the position of the panel as needed to fit the installa- tion area. Slide the remaining L -feet bolts onto the other rail, attach L -feet, and finger tighten with flange nuts. Align L -feet with mounting holes previously drilled into the roof. Install lag bolts into remaining L -feet as described in "Laying out and installing L -feet" above. . Torque all footing flange nuts to 20 foot-pounds. Verify that all lag bolts are securely fastened. Vage 24 Clip slots r Mounting slots Flange Footing \, nut bolt slot Figure 25. Leg -to -rail attachment SolarMount Unirac Code -Compliant Installation Manual :F U N I RAC [3.4] Installing SolarMount with grounding clips and lugs Clips and lugs are sold separately. UGC -I UGL Conforms to UL Standard 467 Figure 28. Place grounding clips, lugs, and copper wire (6-10 AWG). Place a loop in the wire around splices to prevent tension. Be sure wiring between rails is not taut. KEY ❑ PV module O SolorMount rail (any type) Rail splice X Grounding lug ® Grounding clip Copper wire Top �fi� clamps + Module i T -bolt UGC -1 era SolafMountO roil (any type) Figure 26. Slide UGC -1 grounding clip into top mounting slot of rail Torque modules in place on top of clip. Nibs will penetrate rail anod- ization and create grounding path through rail (see Fig. 3, reverse side). 1 i + SolorMount@ rail (any type) Figure 27. Slide'/4-inch hex bolt into top mounting slot of any SolarMount® rail (standard, HD, or light). Secure nut with 7/16 -inch crescent wrench with sufficient torque for lug serrations to penetrate anodized surface of raiL rn I - vase 25 .-:o UNI RAC Unirac Code -Compliant Installation Manual SolarMount 10 year limited Product Warranty, 5 year limited Finish Warranty Unirac, Inc., warrants to the original purchaser ("Purchaser") of product(s)'that it manufactures ("Product") at the original installation site that the Product'shall be free from defects in material and workmanship for a period often (10) years, except for the anodized finish, which finish shall be free from visible peeling, or cracking or chalking under normal atmospheric conditions for a period of five (5) years, from the earlier of 1) the date the installation of the Product is completed, or 2) 30 days after the purchase of the Product by the original Purchaser ("Finish Warranty"). The Finish Warranty does not apply to any foreign residue deposited on the finish. All installations in corrosive atmospheric conditions are excluded. The Finish Warranty is VOID if the practices specified by AAMA 609 & 610-02 —"Cleaning and Maintenance for Architecturally Finished Aluminum" (www.aamanet.org) are not followed by Purchaser.This Warranty does not cover damage to the Product that occurs during its shipment, storage, or installation. This Warranty shall be VOID if installation of the Product is not performed in accordance with Unirac's written installation instructions, or if the Product has been modified, repaired, or reworked in a manner not previously authorized by Unirac IN WRITING, or if the Product is installed in an environment for which it was not designed. Unirac shall not be liable for consequential, contingent or incidental damages arising out of the use of the Product by Purchaser under any circumstances. If within the specified Warranty periods the Product shall be reasonably proven to be defective, then Unirac shall repair or replace the defective Product, or any part thereof, in Unirac's sole discretion. Such repair or replacement shall completely satisfy and discharge all of Unirac's liability with respect to this limited Warranty. Under no circumstances shall Unirac be liable for special, indirect or consequential damages arising out of or related to use by Purchaser of the Product. Manufacturers of related items, such as PV modules and flashings, may provide written warranties of their own. Unirac's limited Warranty covers only its Product, and not any related items. OF U N IRAC i411Bro Broadway Boulevard NE Albuquerque NM 87102-1545 USA 26 P.O. Box 1504 LA QUINTA, CALIFORNIA 92247-1504 78-495 CALLE TAMPICO LA QUINTA, CALIFORNIA 92253 BUILDING & SAFETY DEPAFTMENT (760) 777-7012 RESIDENTIAL PLAN CHECK CORRECTION LIST (SOLAR) DATE: OCTOBER 11, 2011J STATUS: SECOND REVIEJV PLAN CHECKED BY: AJ ORTEqq TELEPHONE NUMBER: (760) 777-7018 FAX (760) 777-7011 ADDRESS: 51-300 AVENIDA DIAZ DESCRIPTION: PV SOLAR SYSTEM APPLICANT: MICHAEL FASH PLAN CHECK #: 11-0940 This submittal has been checked for compliance with the 2010 California Residential, Mechanical, Electrical, Plumbing, Energy, and Green Building Codes, and the City of La Quinta Municipal Code. APPLICANT: BUILDING DEPARTMENT STAFF: The following items are being returned to you for DO NOT accept any resubmittal unless ALL of the correction: following items are included: 2- SOLAR (REDLINED) PLAN ,%2� SOLAR (RFBIWD] FLAN ' J:'�' t 2- UNMARKED PLAN SET CORRECTION LIST w/res onses 3- STRUCTURAL CALCULATIONS 2- REVISED PLAN SETS 3- RAC SPECIFICATIONS ,2- REVISED STRUCT. CALCS. 1- CORRECTION LIST 1- ASSESSORS SITE/FLOOR PLAN ^tS�.vI'•".RJ1Al� 'Il'r v:�'?��j. i7•a;M'+'� i=1Ka.�47►i.;`_..�:•: �'' r''.:I: i [.i1v• ,rr i � INSTRUCTIONS TO APPLICANT: 1) Provide a written response to each comment on the following pages, noting specifically where the correction can be found. Responses such as, "Sheet A-3," or, "Handrails shall be per CBC Section 1003," are not ,j , acceptable. Show or note specifically how compliance with a code requirement is achieved. Responses such as, "Added note 16 on sheet A-3" are appropriate and will help expedite your back check. 2) Corrections may not be made by handwriting on existing drawings. Revise originals and reprint Plans and/or Calculations as necessary. 3) Return all red -marked Plans and/or Calculations with your resubmittal. 4) Each sheet of resubmitted Plans and/or Calculations shall include the preparer's name and telephone number and shall be wet -signed by the preparer. If the preparer is a licensed architect or engineer, all documents prepared by that licensed individual shall also bear his/her stamp as prescribed by California Business and Professions Code Section 5536. Resubmittals will not be accepted with signatures missing. 5) Return this list, your written responses, and all documents listed above with your resubmittal. Residential Plan Check Correction List (SOLAR) Page 1 of 3 SECTION A - GENERAL dy Provide on each sheet of resubmitted Plans and cover sheet of bound Calculations the preparer's name and telephone number and wet -signature. If the preparer is a licensed architect or engineer, all documents prepared by that licensed individual shall also bear his/her stamp as prescribed by California Business and Professions Code'5536. Resubmittals will not be accepted with signatures missing. SECTION B — SOLAR I. General 1 Reconcile noted information shown on single line diagram. See P review redlined plan. Please provide a response for each item, either on returned redlined plan or. iri'letter. Items still remain from lst review redlines, see 2"d review redlines for additional clarification. II. Circuit Requirements ?1))The Circuit conductors and Overcurrent devices shall be sized to carry not less than 125% of the maximum currents as calculated in 690.8(A). (CEC §690.8(B)1) The size of conductor specified on plan is not being shown as corrected accordingly. Please conductor sizing schedule showing all adjustments and derating factors as required by the 2010 California Electrical Code — 2008 NEC. A conductor sizing schedule has not been provided on plan, see 2"d review redlines ivr cilarificatiOr+. 1. Dinnectinns'�'�� kr4s I°R #A*4�W LA4 1) No corrections apply. 1V. Wiring Methods All PV system wiring must be made using one of the specific installation/materials methods included in the (CEC §690.31, Chapter 3) Run locations not shown on plan. See Section B ` Itim 11(19 far adT' ional information required to be shown on plan. �j."`"� $l agm% -a VVWVr..0 fp+PoiL AW UWOJr M per, w 4. 5daw +; W, Au. Where the number of current -carrying conductors in a racew y exceed three (3) the allowable ampacity of� each conductor shall be reduced as shown in Table 310.15(B)(2)(a). (CEC §310.15(13)(2)) Adjust accordingl)k how adjustotent factors in conductor sizing schedule. Conduits exposed to sunlight on rooftops, where conductors or cables are installed, the adjustments shown in Table 310.15(B)(2)(c) shall be added to the outdoor temperature to determine the applicable ambient temperature for application of the correction factors in Table 310.16. (CEC §310.15(B)(2)(c)) Adjust .} conductor sizes accordingly. Show adjustment factors in conductor sizing schedule. V. Grounding Grounding information not shown on plans. System grounding, Equipment grounding, Equipment banding and Array grounding shall be designed and specified on plan per California Electrical Code Article 690, Part V. Fully speck all required information and design on plans. Both a Grounding Electrode Conductor (DC) and an Equipment Grounding Conductor are required from the inverter. pecify a sine for do grounding electrode conductor per CEC §250.166, 690.41. Conductor not specified on plan, please speeffy minimum size per proposed location requirements. Clarify that the conductor is entirely within conduit. Residential Plan Check Correction List (SOLAR) Page 2 of 3 11 City of La Quinta Specify a size for do grounding electrode conductor per CEC §250.166, 690.41. Conductor not specified.on plan, please specify minimum size per proposed location requirements. 3 V�I. Marking, Connection to Other Sources, Storage Batteries and Systems Over 600 Volts Provide schedule with the location of all required markings and labels for the proposed photovoltaic system. (CEC §690) Please update signage sheet per 2010 California Electrical Code requirements. N . 1 4-of, 1 t F-1- 2 The output of a utility -interactive inverter shall be permitted to be connected to the load side of the service disconnecting means of the other source at any distribution equipment on premises. Where such a connection is made, the interconnection provisions of CEC Section 690.64(B)(1) through (B)(7) shall apply. Applying to service and sub -panel busbars, the sum of the ampere ratings of overcurrent devices in circuits supplying power to a busbar or conductor shall not exceed 120 percent of the rating of the busbar or conductor. If de -rating is required, please provide load calculation for the entire dwelling complying with the provisions of Article 220. * SECTION C - STRUCTURAL a See separate structural correction list, attached. Important note to Engineer of Record: If these corrections require revisions to structural calculations, in response to these corrections, do NOT simply submit two copies of a few supplemental calculations. For resubmittal, include: • One complete set of structural calculations from the previous submittal, and... • Two complete, stamped and wet -signed sets of structural calculations for review and approval. Your written responses should direct the plan reviewer to the appropriate revised page(s). Failure to provide documentation in this manner will delay approval of your client's project. Incomplete sets, loose pages will not be assembled by the Building Department. SECTION D - MISCELLANEOUS COMMENTS 1) Red marks on Plans, even if not specifically mentioned in this list, indicate items needing correction. Revise Plans as necessary and provide written response, noting where correction can be found. 2) Provide one copy each of the Site Plan and Floor Plan for the County Assessor's office. While not required for resubmittal, this administrative item must be addressed prior to issuance of building permit. END CORRECTION LIST As further information is provided and reviewed, additional corrections may be required. Residential Plan Check Correction List Page 3 of 3 City of La Quinta Building and Safety Department Plan Check Corrections Structural Fash Residence — Roof Solar Panels Engineer: Collins Allan, PE 51-300 Avenida Diaz Plan Check No.: 11-940 (1st check) La Quinta, California Date: 9/6/2011 1. Provide existing roof truss dead load break down to justify the total existing roof dead load of 5 psf. Include weight of roofing material, ceiling gypboard, insulation/misc. The assumed existing roof dead load of 5 psf is increased by a factor of 2 with the weight from the new solar panels and racking. Provide calculations for a 'sting roof bearing headers/beams in the area of the added solar panels to verify their adequacy. —6N v 1 2. Note on Section A -A on V% 2 the speci s and grade of the existing truss members to be verified in the field (DF-L No. 1). o L `"1 0 3. Note on Section A -A on sheet 2 the interior wall is assumed as a roof bearing wall and should be verified in the field. 0'�Oz � � I e,4. 4. Specify the rail span and module length on the plans to correlate with the calculations. 5. Revise the solar panel layout to match with each o her. Layout plan by Sea Bright Solar does not match with the layout on S2. If corrections require revisions to the structural calculations, provide one complete copy of the redlined calculations from this submittal plus two complete, bound copies of the revised calculations for review and approval. Providing only a few supplemental, revised pages will not be accepted and will delay approval of this project. Please incorporate requested corrections into plan sets and reprint. Plan Reviewer. John W. Thompson, P.E. Phone No.: 760-834-8860 Fax No.: 760-834-8861 City of La Quinta VI. Marking, Connection to Other Sources, Storage Batteries and Systems Over 600 Volts 1 } Provide schedule with the location of all required markings and labels for the proposed photovoltaic system. (CEC §690) Please update signage sheet per 2010 California Electrical Code requirements. See 2"`' review redlined plan. ito l� ti u0 ►t IV%*0 2} The output of a utility -interactive inverter shall be permitted to be connected to the load side of the service Ldlis,�eonneucting means of the other source at any distribution equipment on premises. Where such a connection he interconnection provisions of CEC Section 690.64(B)(1) through (B)(7) shall apply. Applying to d subpanel busbars, the sum of the ampere ratings of overcurrent devices in circuits supplying a busbar or conductor shall not exceed 120 percent of the rating of the busbar or conductor. If Be- equired, please provide load calculation for the entire dwelling complying with the provisions of 0. Provide verification of 200Amp Service with 225Amp bus. C.tI AteMS &tVr Ca,. ✓t_ f �W�� �1T�s" {ate eF 6aS-re ��c, SECTION C - STRUCTURAL �- 1) See separate structural correction list, attached. Important note to Engineer of Record: If these corrections require revisions to structural calculations, in response to these corrections, do NOT simply submit two copies of a few supplemental calculations. For resubmittal, include: • One complete set of structural calculations from the previous submittal, and... ■ Two complete, stamped and wet -signed sets of structural calculations for review and approval. Your written responses should direct the plan reviewer to the appropriate revised page(s). Failure to provide documentation in this manner will delay approval of your client's project. Incomplete sets, loose pages will not be assembled by the Building Department. SECTION D - MISCELLANEOUS COMMENTS 1) Red marks on Plans, even if not specifically mentioned in this list, indicate items needing correction. Revise Plans as necessary and provide written response, noting where correction can be found. 2) Provide one copy each of the Site Plan and Floor Plan for the County Assessor's office. While not required for resubmittal, this administrative item must be addressed prior to issuance of building permit. END CORRECTION LIST As further information is provided and reviewed, additional corrections may be required. Residential Plan Check Correction List Page 3 of 3 City of La Quinta Building and Safety Department Plan Check Corrections Structural Fash Residence — Roof Solar Panels Engineer: Collins Allan, PE 51-300 Avenida Diaz Plan Check No,: 11-940 (1st check) La Quinta, California Date: 9/6/2011 Provide existing roof truss dead load break down to justify the total existing roof dead load of 5 psf. T Include weight of roofing material, ceiling gypboard, insulation/misc. The assumed existing roof dead load of 5 psf is increased by a factor of 2 with the weight from the new solar panels and racking. Provide calculations for existing roof bearing headerslb ams in the area of the added solar panels to verify their adequacy. 2. Note on Section A -A on sheet 2 the species and grade of the existing truss members to be verified in -the field (DF-L No. 1). 1, 3_ Note on Section A -A on sheet 2 the interior wall is assumed as a roof bearing wall and should be verified in the field. J 4. Spqcify the rail span and module length on the plans to correlate with the calculations. G Revise the solar panel layout to match with each other. Layout plan by Sea Bright Solar does not match with the layout on S2. 4J If corrections require revisions to the structural calculations, provide one complete copy of the redlined calculations from this submittal plus two complete, bound copies of the revised calculations for review and approval. Providing only a few supplemental, revised pages will not be accepted and will delay approval of this project. Please incorporate requested corrections into plan sets and reprint. Plan Reviewer., John W. Thompson, P-E. Phone No.: 760-834-8860 Fax No.: 760-834-8861 Ak A-I'A",sf- .'s1-')00 jn�✓-,-, ��, ols4 (D f �, � --Ilk, %. �,� &-T� -Ij GIC I U C Cv V-,-Aj VU-%� Y 4 if TWy1f 4 4 QUW(V P.O. Box 1504 LA QUINTA, CALIFORNIA 92247-1504 78-495 CALLE TAMPICO LA QUINTA, CALIFORNIA 92253 BUILDING & SAFETY DEPARTMENT RESIDENTIAL PLAN CHECK CORRECTION LIST (SOLAR) DATE: OCTOBER 26, 2411 STATUS: THIRD REVIEW PLAN CHECKED BY: AJ ORTEGA TELEPHONE NUMBER: (760) 777-701$, (760) 777-7012 FAX (760) 777-7011 ADDRESS: 51-300 AVENIDA DIAZ DESCRIPTION: PV SOLAR SYSTEM APPLICANT: MICHAEL FASH PLAN CHECK #: 11-0940 This submittal has been checked for compliance with the 2010 California Residential, Mechanical, Electrical, Plumbing, Energy, and Green Building Codes, and the City of La Quinta Municipal Code. APPLICANT: The following items are being returned to you for correction: 2- SOLAR (REDLINED) PLAN 3- UNMARKED PLAN SET 3- STRUCTURAL CALCULATIONS 3- RAC SPECIFICATIONS 1- CORRECTION LIST s 9112, BUILDING DEPARTMENT STAFF: DO NOT accept any resubmittal unless ALL of the following items are included: �?- SOLAR (REDLINED) PLAN CORRECTION LIST w/responses _,-2- REVISED PLAN SETS 2- REVISED STRUCT. CALCS. �yd� 1- ASSESSORS SITE/FLOOR PLAN INSTRUCTIONS TO APPLICANT: 1) Provide a written response to each comment on the following pages, noting specifically where the correction can be found. Responses such as, "Sheet A-3," or, "Handrails shall be per CBC Section 1003," are not acceptable. Show or note specifically how compliance with a code requirement is achieved. Responses such as, "Added note 16 on sheet A-3" are appropriate and will help expedite your back check. 2) Corrections may not be made by handwriting on existing drawings. Revise originals and reprint Plans and/or Calculations as necessary. 3) Return all red -marked Plans and/or Calculations with your resubmittal. 4) Each sheet of resubmitted Plans and/or Calculations shall include the preparer's name and telephone number and shall be wet -signed by the preparer. If the preparer is a licensed architect or engineer, all documents prepared by that licensed individual shall also bear his/her stamp as prescribed by California Business and Professions Code Section 5536. Resubmittals will not be accepted with signatures missing. 5) Return this list, your written responses, and all documents listed above with your resubmittal. Residential Plan Check Correction List (SOLAR) Page 1 of 3 SECTION A - GENERAL 1) Provide on each sheet of resubmitted Plans and cover sheet of bound Calculations the preparer's name and telephone number and wet -signature. If the preparer is a licensed architect or engineer, all documents prepared by that licensed individual shall also bear his/her stamp as prescribed by California Business and Professions Code'5536. Resubmittals will not be accepted with signatures missing. SECTION B — SOLAR I. General 1) Reconcile noted information shown on single line diagram.' See I" review redlined plan. Please provide a response for each item, either on returned redlined plan or In letter. Items still remain from IS` review redlines, see 2nd review redlines,for additional clarification. Items still remain from 1s` and 2"d reviews, see highlighted areas on 2"d review redlined plan for areas remaining. II. Circuit Requirements 1) The Circuit conductors and Overcurrent devices shall be sized to carry not less than 125% of the maximum currents as calculated in 690.8(A). (CEC §690.8(B)1) The size of conductor specified on plan is not being shown as corrected accordingly. Please conductor sizing schedule showing all adjustments and derating faclars as required by the 010 CafifbRiia Electrical Code — 2 Oulu NEB. A conductor sizinng schedule has not been provided on plan, see 2"`1 review redlines.for clarification. Adjustment factors incorrect and/or missing based on actual temperatures and conduct/conductor locations. III. Disconnecting Means 1) No corrections apply. IV. Wiring Methods 1) All PV system wiring must be made using one of the specific inslali tiiQn/�stetia(s MFthods included in the (CEC §690.31, Chapter 3) Run locations not shown on plan. See Section B,- It? II (1J for• additional information required to be shown on plan. Reconcile single -line diagram"and site plan for proposed conduit and junction box locations — locations required to afcurately apply NEC adjustments. 2) Where the number of current -carrying conductors in a raceway exceed three (3) the allowable ampacity of each conductor shall be reduced as shown in Table 310.15(B)(2)(a). (CEC §310.15(B)(2)) Adjust accordingly. Show adjustmentfactors in conductor sizing schedule. Six conductors shown in 3/a inch conduit, verify amount of conductors in conduit and adjust conductor ratings per Table 310.15(B)(2)(a). 3) Conduits exposed to sunlight on rooftops, where conductors or cables are installed, the adjustments shown in Table 310.15(B)(2)(c) shall be added to the outdoor temperature to determine the applicable ambient temperature for application of the correction factors in Table 310.16. (CEC §310.15(B)(2)(c)) Adjust conductor sizes accordingly. Show adjustment factors in conductor sizing schedule. 2"d review redlined comment requesting distance of conduit from roof -top ignored — distance required to accurately apply NEC adjustments. V. Grounding 1) No corrections remain. Residential Plan Check Correction List (SOLAR) Page 2 of 3 City of La Quinta VI. Marking, Connection to Other Sources, Storage Batteries and Systems Over 600 Volts 1) Provide schedule with the location of all required markings and labels for the proposed photovoltaic system. (CEC §690) Please update signage sheet per 2010 California Electrical Code requirements. See 2"d review redlined plan. Revision has not been made to include additional requested signage. 2) The output of a utility -interactive inverter shall be permitted to be connected to the load side of the service disconnecting means of the other source at any distribution equipment on premises. Where such a connection is made, the interconnection provisions of CEC Section 690.64(B)(1) through (13)(7) shall apply. Applying to service and sub panel busbars, the sum of the ampere ratings of overcurrent devices in circuits supplying power to a busbar or conductor shall not exceed 120 percent of the rating of the busbar or conductor. If Be- rating is required, please provide load calculation for the entire dwelling complying with the provisions of Article 220. Provide verification of 200Amp Service with 225Amp bus. Equipment specification not clear — additionally photo of existing equipment has not been provided to verify actual specifications. Please provide photo identification of existing equipment 200AMP/225AMP BUS. SECTION C - STRUCTURAL 1) See separate structural correction list, attached. Important note to Engineer of Record: If these corrections require revisions to structural calculations, in response to these corrections, do NOT simply submit two copies of a few supplemental calculations. For resubmittal, include: • One complete set of structural calculations from the previous submittal, and... • Two complete, stamped and wet -signed sets of structural calculations for review and approval. Your written responses should direct the plan reviewer to the appropriate revised page(s). Failure to provide documentation in this manner will delay approval of your client's project. Incomplete sets, loose pages will not be assembled by the Building Department. SECTION D - MISCELLANEOUS COMMENTS 1) Red marks on Plans, even if not specifically mentioned in this list, indicate items needing correction. Revise Plans as necessary and provide written response, noting where correction can be found. 2) Provide one copy each of the Site Plan and Floor Plan for the County Assessor's office. While not required for resubmittal, this administrative item must be addressed prior to issuance of building permit. END CORRECTION LIST As further information is provided and reviewed, additional corrections may be required. Residential Plan Check Correction List Page 3 of 3 OCT 3 1 2011 SEA BLIGHT now SOLAR, INC. � October 31, 2011 City of LaQuinta Building & Safety REGARDING: WRITTEN RESPONSE - PLAN CHECK #: 11-0940 Section A — GENERAL Three sets of signed plans attached. Section B — SOLAR I General: Items from 1st and 2nd review are now corrected. II Circuit Requirements Adjustment factors corrected and based on actual temperatures and conduct/conductor locations. (Pages PV-P2, PV-P3) III Disconnecting Means — No Corrections IV. Wiring Methods 1) SLD and Site Plan Reconciled to show run locations (Pages PV-P2, PV-P3) 2) Conductor ratings adjusted (Pages PV-P2, PV-P3) 3) Distance of Conduit from roof -top indicated (Page PV-P2) V. Grounding — No Corrections VI. Marking, Connection to Other Sources, Storage Batteries & Systems Over 600 Volts. 1) Revisions made to include additional requested signage (Page PV-P9) 2) Photo of existing equipment provided to verify actual specifications (Page Addendum to PV-P 10) Sincerely, C-46 Contractor License No. 900399 President Is Certified In Accordance with North American Board of Certified Energy Practitioners 390 Alabama St. Suite A, Redlands, California 92373-8046 Phone: 909-335-0820 Fax: 909-335-0930