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HomeMy WebLinkAbout1425 N King St - PlanSCOPE OF WORK: INSTALL (25) SUNPOWER SPR-M425-H-AC SOLAR ELECTRIC MODULES ON THE EXISTING 1ST STORY COMPOSITION ROOF. INSTALL ASSOCIATED MOUNTING HARDWARE, JUNCTION BOXES, CONDUIT, CONDUCTORS AND GROUNDING. INSTALL (1) LOAD CENTER, (1) FUSED AC DISCONNECT, AND CONNECT TO SCE INSTALLED GMA. HOMEOWNER: HUU NGUYEN PH: 714.717.0992 ADDRESS: 1425 N. KING STREET SANTA ANA, CA 92706 DATE: 5/17/22DATE: 5/17/22 ECOSOLAR USA ELECTRICAL LLC 13962 SEABOARD CIRCLE GARDEN GROVE, CA 92840 PH: 714.265.9077 DAVID Q HOANG C10 - 1045300 VICINITY MAP NGUYEN RESIDENCE SHEET INDEX: SHEET 1 PROJECT INFO, VICINITY MAP, NOTES, SCOPE OF WORK SHEET 2 SITE/ROOF PLAN, ELEVATION DETAIL SHEET 3 ELECTRIC LINE DRAWING, GROUNDING DETAIL SHEET 4 CALCULATIONS, SIGNS ATTACHED MODULE, INVERTER, MOUNTING HARDWARE SPEC SHEETS, STRUCTURAL REPORT NTS SHEET NOTICE: ANY CHANGES TO OR USES OF THESE DOCUMENTS/DRAWINGS WITHOUT THE WRITTEN CONSENT OF JENNIFER KEMME OR SCOTT HARRIS ARE STRICTLY PROHIBITED. 1 OF 4 PLANS PREPARED BY: JENNIFER KEMME PH: 909.748.1300 GENERAL NOTES: 1. THIS SYSTEM COMPLIES WITH THE 2019 CRC, 2019 CBC, 2019 CFC, AND THE 2019 CEC. 2. THE SYSTEM WILL NOT BE TURNED-ON UNTIL THE SERVING UTILITY COMPANY HAS BEEN NOTIFIED. 3. THE INSTALLED SOLAR SYSTEM HAS A DISTRIBUTED WEIGHT LESS THAN 4 PSF. 4. THE CONCENTRATED LOAD FOR EACH VERTICAL SUPPORT IS LESS THAN 40 LBS. 5. ALL PV EQUIPMENT IS LISTED BY A RECOGNIZED TESTING LAB. INVERTERS ARE UL 1741 COMPLIANT. 6. THE BACKFED BREAKER WILL BE LOCATED AT THE OPPOSITE END OF THE BUS FROM THE MAIN BREAKER. 7. CONDUCTORS ARE 90° C RATED COPPER WIRE. 8. ANY CONDUCTORS EXPOSED TO SUNLIGHT ARE LISTED AS SUNLIGHT RESISTANT. 9. IF DC CONDUCTORS ARE RUN INSIDE THE BUILDING, THEY WILL BE CONTAINED IN A METAL RACEWAY. 10. ANY CONDUCTORS BETWEEN SEPARATE ARRAYS ON THE ROOF WILL BE PROTECTED IN CONDUIT. 11. THE EQUIPMENT GROUNDING CONDUCTOR ON THE ROOF WILL BE PROTECTED FROM PHYSICAL DAMAGE. IT WILL BE TUCKED NEATLY UNDER THE MODULES AND RAILS AND SECURED IN PLACE. 12. THE MODULES WILL BE ATTACHED TO THE EQUIPMENT GROUNDING CONDUCTOR IN ACCORDANCE WITH THE MANUFACTURER'S INSTRUCTIONS. 13. ALL EXTERIOR CONDUIT, FITTINGS AND BOXES ARE RAIN-TIGHT AND APPROVED FOR USE IN WET LOCATIONS. 14. CLEARANCES AROUND ALL ELECTRICAL EQUIPMENT WILL BE MAINTAINED IN ACCORDANCE WITH CEC 110.26. 15. SOLAR MODULES WILL NOT OBSTRUCT ANY PLUMBING, MECHANICAL OR BUILDING ROOF VENTS. 16. IF THE EXISTING MAIN SERVICE PANEL DOES NOT HAVE A VERIFIABLE GROUNDING ELECTRODE SYSTEM, A GROUNDING ELECTRODE SYSTEM WILL BE INSTALLED PER CEC 250.50. THE ELECTRICAL SERVICE WILL BE BONDED TO THE WATER AND GAS PIPING PER SECTION 250.104 OF THE CEC. 17. A LADDER WILL BE IN PLACE FOR INSPECTION IN COMPLIANCE WITH CAL-OSHA REGULATIONS. 89026PV (25) SUNPOWER SPR-M425-H-AC AC MODULES PEAK POWER = 425 W MAX OUTPUT CURRENT = 1.60 A MAX OCPD = 20 A MAX NUMBER IN SERIES = 10 TEMP. COEFF. OF POWER = -0.29%/°C DIMENSIONS = 73.7" X 40.6" X 1.3" WEIGHT = 48.0 LBS PHOTOVOLTAIC SOLAR PROJECT INFORMATION: SYSTEM SIZE: 10.625 kW (DC) MODULES: ARRAY:INSTALLED WEIGHT = 2.8 PSF ROOF COVERAGE = 520 SF, ARRAYS COVER 33% OF TOTAL ROOF AREA MOUNTING HARDWARE: SUNPOWER INVISIMOUNT RAIL UNIRAC FLASHED FOOT ATTACHMENTS 5 16" STAINLESS STEEL LAG BOLTS @ 64" OC OR LESS WITH A MINIMUM OF 21 2" PENETRATION INTO ROOF RAFTERS EXISTING ROOF INFO: 1 STORY, COMPOSITION SHINGLE 2 X 6 RAFTERS @ 16" OC Bldg permi#101111031 Elect permit#20176668 Permits issued on 7/21/2022 1425 N King St - 2017666807/25/22 SCOPE OF WORK: INSTALL (25) SUNPOWER SPR-M425-H-AC SOLAR ELECTRIC MODULES ON THE EXISTING 1ST STORY COMPOSITION ROOF. INSTALL ASSOCIATED MOUNTING HARDWARE, JUNCTION BOXES, CONDUIT, CONDUCTORS AND GROUNDING. INSTALL (1) LOAD CENTER, (1) FUSED AC DISCONNECT, AND CONNECT TO SCE INSTALLED GMA. HOMEOWNER: HUU NGUYEN PH: 714.717.0992 ADDRESS: 1425 N. KING STREET SANTA ANA, CA 92706 DATE: 5/17/22DATE: 5/17/22 ECOSOLAR USA ELECTRICAL LLC 13962 SEABOARD CIRCLE GARDEN GROVE, CA 92840 PH: 714.265.9077 DAVID Q HOANG C10 - 1045300 NOTE: DIMENSIONS AND FEATURES SHOWN ARE CLOSE TO SCALE BUT WERE TAKEN FROM A FIELD SURVEY AND APPROXIMATIONS MADE USING GOOGLE EARTH. PROPERTY LINE (E) 200 AMP MAIN SERVICE PANEL W/SCE INSTALLED GMA N. KIN G S T R E E T N SCALE: 1/16"=1' 8 16 32 48 VENT (TYP) (N) FUSED AC DISCONNECT SITE/ROOF PLAN 1 ARRAY #2: (13) MODULES TILT = 20°, AZ = 117° PROPERTY LINE SHEET NOTICE: ANY CHANGES TO OR USES OF THESE DOCUMENTS/DRAWINGS WITHOUT THE WRITTEN CONSENT OF JENNIFER KEMME OR SCOTT HARRIS ARE STRICTLY PROHIBITED. 2 OF 4 PLANS PREPARED BY: JENNIFER KEMME PH: 909.748.1300 EXISTING 1-STORY ROOF: COMPOSITION SHINGLE, FELT & 1 2" SHEATHING OVER RAFTERS EXISTING 2 X 6 RAFTERS @ 16" OC MODULES: 73.7" X 40.6" 48.0 LBS EACH SUNPOWER INVISIMOUNT RAIL MOUNTING SYSTEM WITH UNIRAC FLASHED FOOT ROOF ATTACHMENTS (USE 5 16" STAINLESS STEEL LAG BOLTS @ 64" OC OR LESS WITH A MINIMUM EMBEDMENT OF 21 2" INTO ROOF RAFTERS), WATERPROOF ALL CONNECTION LOCATIONS PER MANUFACTURER'S INSTRUCTIONS 3" MIN. 8" MAX. NTS ELEVATION DETAIL 3' FIRE CLEARANCE 89026PV TOTAL ROOF AREA = 1590 SF TOTAL SOLAR AREA = 520 SF 520 SF/1590 SF = 0.33 ARRAYS COVER 33% OF TOTAL ROOF AREA (N) LOAD CENTER PROPERTY LINE ARRAY #1: (12) MODULES TILT = 20°, AZ = 297° CHIMNEY 2 3 45 6 7 89 1011 12 13 1415 1617 1819 2021 2223 2425 1'-9" 15'-5" 7' 3' 3'3' 9'-9" 29'-2" 1425 N King St - 2017666807/25/22 SCOPE OF WORK: INSTALL (25) SUNPOWER SPR-M425-H-AC SOLAR ELECTRIC MODULES ON THE EXISTING 1ST STORY COMPOSITION ROOF. INSTALL ASSOCIATED MOUNTING HARDWARE, JUNCTION BOXES, CONDUIT, CONDUCTORS AND GROUNDING. INSTALL (1) LOAD CENTER, (1) FUSED AC DISCONNECT, AND CONNECT TO SCE INSTALLED GMA. HOMEOWNER: HUU NGUYEN PH: 714.717.0992 ADDRESS: 1425 N. KING STREET SANTA ANA, CA 92706 DATE: 5/17/22DATE: 5/17/22 ECOSOLAR USA ELECTRICAL LLC 13962 SEABOARD CIRCLE GARDEN GROVE, CA 92840 PH: 714.265.9077 DAVID Q HOANG C10 - 1045300 ELECTRICAL LINE DIAGRAM SHEET NOTICE: ANY CHANGES TO OR USES OF THESE DOCUMENTS/DRAWINGS WITHOUT THE WRITTEN CONSENT OF JENNIFER KEMME OR SCOTT HARRIS ARE STRICTLY PROHIBITED. 3 OF 4 PLANS PREPARED BY: JENNIFER KEMME PH: 909.748.1300 SOURCE CIRCUIT #1: 9 MODULES, 240 VAC L1 L2 L1 L2 SOURCE CIRCUIT #2: 8 MODULES, 240 VAC NEMA 3R, 240 VAC JUNCTION BOX L1 L2 L1 L2 + - + - + - + - 12 AWG (TYP) SOURCE CIRCUIT #3: 8 MODULES, 240 VAC L1 L2 L1 L2+ - + - SUNPOWER SPR-M425-H-AC (6) 10 AWG THWN-2 & (1) 10 AWG GROUND IN 3 4" EMT CONDUIT 89026PV 20A 20A LOAD CENTER 125 A BUS RATED 240 VAC, 1Ø (3) 8 AWG THWN-2 & (1) 8 AWG GROUND IN 3 4" EMT CONDUIT 20A 20A TO M O N I T O R I N G SUNPOWER SPR-M425-H-AC SUNPOWER SPR-M425-H-AC SUNPOWER SPR-M425-H-AC SUNPOWER SPR-M425-H-AC SUNPOWER SPR-M425-H-AC USE SUNPOWER INTEGRATED GROUNDING TO GROUND ALL MODULES, JUNCTION BOXES AND ANY OTHER METAL PARTS AND GROUND LUGS WITH #6 AWG SOLID COPPER WHERE NEEDED MAIN SERVICE INFO: 200 A, 120/240 VAC, 1Ø, 3-WIRE METER #222013-506062 200A EXISTING BUILDING GROUNDING ELECTRODE SYSTEM M EXISTING SERVICE PANEL W/SCE INSTALLED GMA: 200 A BUS RATED, 240 VAC, 1Ø 60A G L1 L2 60 A, 240 VAC, 1Ø FUSED AC DISCONNECT LOCKABLE, VISIBLE KNIFE-BLADE TYPE (3) 6 AWG THWN-2 IN 3 4" LFNC CONDUIT 1425 N King St - 2017666807/25/22 SCOPE OF WORK: INSTALL (25) SUNPOWER SPR-M425-H-AC SOLAR ELECTRIC MODULES ON THE EXISTING 1ST STORY COMPOSITION ROOF. INSTALL ASSOCIATED MOUNTING HARDWARE, JUNCTION BOXES, CONDUIT, CONDUCTORS AND GROUNDING. INSTALL (1) LOAD CENTER, (1) FUSED AC DISCONNECT, AND CONNECT TO SCE INSTALLED GMA. HOMEOWNER: HUU NGUYEN PH: 714.717.0992 ADDRESS: 1425 N. KING STREET SANTA ANA, CA 92706 DATE: 5/17/22DATE: 5/17/22 ECOSOLAR USA ELECTRICAL LLC 13962 SEABOARD CIRCLE GARDEN GROVE, CA 92840 PH: 714.265.9077 DAVID Q HOANG C10 - 1045300 SYSTEM SIGNAGE ALL SIGNAGE SHALL BE REFLECTIVE, UV RESISTANT PLASTIC, RED IN COLOR WITH WHITE LETTERING, AND ATTACHED WITH WEATHERPROOF ADHESIVE OR OTHER APPROVED METHOD. ALL LETTERS SHALL BE A MINIMUM OF 3 8" HEIGHT AND ALL CAPITALIZED. ALL CONDUIT, JUNCTION BOXES AND OTHER ENCLOSURES SHALL BE MARKED AT 10' MAX INTERVALS AND AT ALL BENDS, TERMINATIONS, SPLICES OR CONNECTIONS WITH "WARNING: PHOTOVOLTAIC POWER SOURCE". WARNING ELECTRIC SHOCK HAZARD DO NOT TOUCH TERMINALS TERMINALS ON BOTH THE LINE AND LOAD SIDES MAY BE ENERGIZED IN THE OPEN POSITION TO BE INSTALLED AT ALL SERVICEABLE PANELS OR BOXES AND AT ALL DISCONNECTS: SERVICE POINT & UTILITY METERING PV SYSTEM DISCONNECT FOR UTILITY OPERATION CAUTION: POWER TO THIS BUILDING IS ALSO SUPPLIED FROM THE FOLLOWING SOURCES WITH DISCONNECTS AS SHOWN. ADDRESS: 1425 N. KING STREET, SANTA ANA, CA 92706 SOLAR ARRAY (ON ROOF) N TO BE INSTALLED ON THE OUTSIDE COVER OF THE MAIN SERVICE DISCONNECT: RAPID SHUTDOWN SWITCH FOR SOLAR PV SYSTEM RATED AC OUTPUT CURRENT = 50.00 A NOMINAL OPERATING AC VOLTAGE = 240 V TO BE INSTALLED ON THE FRONT OF THE AC DISCONNECT: WARNING POWER SOURCE OUTPUT CONNECTION - DO NOT RELOCATE THIS OVERCURRENT DEVICE TO BE INSTALLED AT THE BACKFED BREAKER SERVING THE PV SOLAR SYSTEM: TURN RAPID SHUTDOWN SWITCH TO THE "OFF" POSITION TO SHUT DOWN PV SYSTEM AND REDUCE SHOCK HAZARD IN THE ARRAY SOLAR ELECTRIC PV PANELS SOLAR PV SYSTEM EQUIPPED WITH RAPID SHUTDOWN TO BE INSTALLED ON THE FRONT OF THE MAIN SERVICE DISCONNECT: "SOLAR PV SYSTEM EQUIPPED WITH RAPID SHUTDOWN" SHALL BE BLACK LETTERING ON YELLOW BACKGROUND. THE REMAINDER OF THE SIGN SHALL BE BLACK LETTERING ON WHITE BACKGROUND. SHEET NOTICE: ANY CHANGES TO OR USES OF THESE DOCUMENTS/DRAWINGS WITHOUT THE WRITTEN CONSENT OF JENNIFER KEMME OR SCOTT HARRIS ARE STRICTLY PROHIBITED. 4 OF 4 PLANS PREPARED BY: JENNIFER KEMME PH: 909.748.1300 SYSTEM CALCULATIONS: NUMBER OF MODULES IN EACH CIRCUIT #1 = 9 MODULE MAX OUTPUT CURRENT = 1.60 A (9) (1.60 A) (1.25) = 18.00 A [Ic], USE 20 A BREAKERS TOTAL NUMBER OF MODULES = 25 (25) (1.60 A) (1.25) = 50.00 A [I], USE 60 A FUSE WIRE CALCULATIONS: FROM THE MODULES TO THE LOAD CENTER: AMBIENT TEMPERATURE = 34°C TEMPERATURE ADDER FOR CONDUIT NOT OFFSET FROM ROOF = 33°C ADJUSTMENT FACTOR PER TABLE 310.15(B)(2)(a) FOR 90°C INSULATED CONDUCTOR AT 34°C + 33°C = 67°C = 0.58 Ic = 18.000 A 18.00 A/0.58 = 31.03 A NUMBER OF CURRENT CARRYING CONDUCTORS IN CONDUIT = 6 ADJUSTMENT FACTOR PER TABLE 310.15(B)(3)(a) FOR CONDUIT FILL (4-6 CONDUCTORS IN CONDUIT) = 0.80 31.03 A/0.80 = 38.79 A SELECT WIRE SIZE WITH AMPACITY GREATER THAN 38.79 A, USE 10 AWG THWN-2 COPPER WIRE WITH AN AMPACITY OF 40 A SELECT CONDUIT FOR (6) 10 AWG THWN-2 & (1) 10 AWG GROUND = 3 4" EMT CONDUIT FROM THE LOAD CENTER TO THE GMA: ADJUSTMENT FACTOR PER TABLE 310.15(B)(2)(a) FOR 90°C INSULATED CONDUCTOR AT 34°C = 0.96 I = 50.00 A 50.00 A/0.96 = 52.08 A SELECT WIRE SIZE WITH AMPACITY GREATER THAN 52.08 A, USE 8 AWG THWN-2 COPPER WIRE WITH AN AMPACITY OF 55 A SELECT CONDUIT FOR (3) 8 AWG THWN-2 & (1) 8 AWG GROUND = 3 4" EMT CONDUIT 89026PV 1425 N King St - 2017666807/25/22 1425 N King St - 2017666807/25/22 SunPower ® InvisiMount™ | Residential Mounting System Simple and Fast Installation • Integrated module-to-rail grounding • Pre-assembled mid and end clamps • Levitating mid clamp for easy placement • Mid clamp width facilitates even module spacing • Simple, pre-drilled rail splice • UL 2703 Listed integrated grounding Flexible Design • Addresses nearly all sloped residential roofs • Design in landscape and portrait • Rails enable easy obstacle management Customer-Preferred Aesthetics • #1 module and #1 mounting aesthetics • Best-in-class system aesthetics ȏ Premium,low-proȴ ledesign • Black anodized components • Hidden mid clamps and end clamps  hardware,andcapped,ȵushrails Part of Superior System • Built for use with SunPower DC and AC modules • Best-in-class system reliability and aesthetics • Combine with SunPower modules and monitoring app sunpower.com Elegant Simplicity SunPower ® InvisiMount™ is a SunPower-designed rail-based mounting system. The InvisiMount system addresses residential sloped roofs and combines faster installationtime,designȵexibility,and superioraesthetics. TheΖnvisiMountproductwasspeciȴcallyenvisionedand  engineered to pair with SunPower modules. The resulting system-level approach will amplify the aesthetic and installationbeneȴtsforbothhomeownersand installers. SunPower ® InvisiMount™ | Residential Mounting System InvisiMount Component Details Component Material Weight Mid Clamp Black oxide stainless steel AISI 304 63 g (2.2 oz) End Clamp Black anodized aluminum alloy 6063-T6 110 g (3.88 oz) Rail Black anodized aluminum alloy 6005-T6 830 g/m (9 oz/ft) Rail Splice Aluminum alloy 6005-T5 830 g/m (9 oz/ft) Ground Lug Assembly 304 stainless (A2-70 bolt; tin-plated copper lug)106.5 g/m (3.75 oz) End Cap Black acetal (POM) copolymer 10.4 g (0.37 oz) Roof Attachment Hardware Supported by InvisiMount System Design Tool Application • Composition Shingle Rafter Attachment • Composition Shingle Roof Decking Attachment • Curved and Flat Tile Roof Attachment • Universal Interface for Other Roof Attachments InvisiMount Operating Conditions Temperature ȫ40°Cto90°C(ȫ40°Fto194°F) Max. Load 2400 Pa uplift 5400 Pa downforce Roof Attachment Hardware Warranties Refer to roof attachment hardware manufacturer’s documentation ΖnvisiMountWarrantiesAndCertiȴcations Warranties 25-year product warranty 5-yearȴnishwarranty Certiȴcations UL 2703 Listed ClassAȴreratingwhendistancebetween roof surface and bottom of SunPower moduleframeisȱ3.5ȋ *Module frame that is compatible with the InvisiMount system required for hardware interoperability. © 2015 SunPower Corporation. All Rights Reserved. SUNPOWER, the SUNPOWER logo, and INVISIMOUNT are trademarks or registered trademarks of SunPower Corporation. All other trademarks are the property of their respective owners. Speciȴcationsincludedinthisdatasheetaresubjecttochangewithoutnotice. InvisiMount Component Images Module* / Mid Clamp and Rail Mid Clamp End Clamp Rail & Rail Splice Ground Lug Assembly End Cap Module* / End Clamp and Rail sunpower.com Document #509506 Rev B 1425 N King St - 2017666807/25/22 1425 N King St - 2017666807/25/22 Rev: 7/15/2021 RESIDENTIAL PHOTOVOLTAIC CHECKLIST SOL-01 CBC 2019 Solar Photovoltaic (PV) Checklist for Detached SINGLE FAMILY RESIDENCES Only Instructions: The licensed contractor of record shall complete all sections, answer the ten questions and sign the certification section below. A copy of this form shall be attached to each of TWO sets of plans, of minimum 11” x 17” size. If answering NO to any of the questions, plan check shall be required. Project Address: Contractor Company Name: Contractor License Number: YES NO Are the following applicable to the proposed project? 1.   Will the PV system layout provide the required three-foot wide clear access pathways per Section 605.11 of the California Fire Code, and is this shown on the roof plan? 2.   Will the PV system be installed on a roof having only one roofing layer with no overlays? 3.   Will the PV array be flush mounted to the existing roof so that the plane of the modules (panels) are parallel to the plane of the roof? 4. Will the PV system weigh maximum 4 pounds per square feet or less? 5. Will the PV system be installed where the modules do not overhang any roof edges (such as eaves, gabled ends, ridges and hips)? 6.   Will the PV system be installed with a space of 2” minimum to 10” maximum between the underside of modules and the surface of the roof? 7.   Will the PV system be installed without using any ballast system or counter-weight system? 8.   Will the anchors be installed with a maximum horizontal anchor spacing of 6 feet and is this maximum horizontal spacing shown on the plans? 9.   Will the minimum 5/16” lag screws be installed with a minimum of 2-1/2 inch embedment into roof rafters (with pre-drilled holes) and is this minimum embedment shown on the plans? 10.   Are ALL the structural pages of the plans stamped and signed by a California licensed professional engineer? (including project specific site plan, PV layout, anchorage spacing, anchorage details and manufacturer’s PV support information.) I certify under penalty of perjury under the laws of the State of California that the above is true: Print Name: Signature: Phone Number: Date: Email Address: Planning & Building Agency Building Safety Division 20 Civic Center Plaza P.O. Box 1988 (M-19) Santa Ana, CA 92702 (714) 647-5800 www.santa-ana.org X X X X X X X X X X JENNIFER KEMME 909-748-1300 SHERRYMANLEY@VISIONCE.COM 1425 N. KING ST ECO SOLAR 1045300 06/15/2022 1425 N King St - 2017666807/25/22 STRUCTURAL ANALYSIS FOR NEW PHOTOVOLTAIC SOLAR SYSTEM NOTE: THESE CALCULATIONS ARE BASED ON INFORMATION AND MEASUREMENTS PROVIDED BY THE CONTRACTOR FROM HIS SITE INSPECTION. 1 Project Information:PV SOLAR ARRAY: NGUYEN RESIDENCE Latitude 33.7577° deg N 1425 N. KING STREET, SANTA ANA, CA 92706 Longitude -117.899° deg W Wind Speed 110 mph 95 mph (ASCE 7-16) Wind Exposure C Site Class D Seismic Design Category D 2 Loads: Existing Roof Dead Loads: 2 x 6 Rafters @ 16" OC 1.3 psf 1/2" Roof Sheathing 1.7 psf Roof Felt 1.5 psf Composition 5.0 psf Miscellaneous 3.5 psf Total 13.0 psf Existing Snow Load:0.0 psf Existing Roof Live Load:20.0 psf Proposed Roof Live Load:20.0 psf Wind Load: Using CBC 2019 (ASCE 7-16), Chapter 29: Wind Loads on Rooftop Equipment, the following wind pressures were calculated. p = qh (GCp) (ge) (ga) = 8.79 -45.19 psf qh = 0.00256 Kz Kzt Kd Ke V2 = 21.76 psf Kz = 0.85 (0-15 = 0.85, 20 = 0.90, 25 = 0.94, 30 = 0.98, 40 = 1.04) GCp = 0.7 -3.6 (Roof pitch = 20 deg, Zone = 2, Aeff = 20.8 sf) ge = 1.50 ga = 0.80 Lag Bolt Capacity: 5/16" lag bolt capacity = 270 lbs per inch embedment With 2 1/2" minimum embedment, capacity = 675 lbs Required Capacity: 45.19 psf * 25 modules * 20.8 sf = 23500.8 lbs 23500.8 lbs / 50 lag bolt connections = 470.0 lbs The pull-out capacity of the 5/16" lag bolts with a minimum 2 1/2" embedment into the roof rafter is sufficient to meet the demand of the wind uplift force on the solar system. Seismic Load: Per the CEBC 2019 Section 503.4, if the demand-capacity ratio of the lateral load-carrying elements increases less than 10% due to the addition of the solar system, no special provisions or structural modifications are required. Existing Roof Weight = 13.0 psf * 1830 sf = 23790 lbs Weight of Solar System = 25 modules * 48.0 lbs + 260 lbs of racking = 1460 lbs 1460 lbs / 23790 lbs = 0.06 The increase in load from the solar system will not increase the demand-capacity ratio of the existing lateral load-carrying elements by over 10%. NOTICE:VISION CIVIL ENGINEERING: JENNIFER KEMME, PE ANY CHANGES TO OR USES OF THESE DOCUMENTS 12273 11TH STREET, YUCAIPA, CA 92399 WITHOUT THE WRITTEN CONSENT OF VISION 909.754.8300, JENKEMME@VISIONCE.COM CIVIL ENGINEERING IS STRICTLY PROHIBITED.RCE 73054, EXP 12/31/22 Prepared by JENNIFER KEMME 5/20/2022 Page 1 1425 N King St - 2017666807/25/22 STRUCTURAL ANALYSIS FOR NEW PHOTOVOLTAIC SOLAR SYSTEM NOTE: THESE CALCULATIONS ARE BASED ON INFORMATION AND MEASUREMENTS PROVIDED BY THE CONTRACTOR FROM HIS SITE INSPECTION. 3 Analysis of Existing Rafter Capacity:PV SOLAR ARRAY: NGUYEN RESIDENCE 1425 N. KING STREET, SANTA ANA, CA 92706 Rafter Loads: Solar system dead load = 1460 lbs / 50 lag bolts total = 29.2 lbs at each lag bolt Existing roof dead load = 13 psf Snow load = 0 psf Roof live load = 20 psf Wind load = 91.4 lbs, 470.0 lbs Rafter span = 11.5 ft Load Combinations That Apply: #1: D + Lr or S = 13 psf + 29.2 lbs at each lag bolt + 20.0 psf #2: D + 0.75(0.6W) + 0.75(Lr or S) = 13 psf + 29.2 lbs at each lag bolt) + (0.75 (0.6) 91.4 lbs at each lag bolt) + (0.75 ( 20 psf)) #3: 0.6D + 0.6W = 0.6 ( 13 psf + 29.2 lbs at each lag bolt) - (0.6) 470.0 lbs at each lag bolt Calculated Maximum Bending Moment: #1: 545.5 ft/lbs + 84.0 ft/lbs = 629.5 ft/lbs [( 33 psf) ( 11.5 ft^2)] / 8 = 545.5 ft/lbs [( 29.2 lbs) ( 11.5 ft)] / 4 = 84 ft/lbs #2: 214.9 ft/lbs + 84.0 ft/lbs + 118.2 ft/lbs + 248.0 ft/lbs = 665.1 ft/lbs [( 13 psf) ( 11.5 ft^2)] / 8 = 214.9 ft/lbs [( 29.2 lbs) ( 11.5 ft)] / 4 = 84 ft/lbs 91.4 lbs) ( 11.5 ft)] / 4 = 118.2 ft/lbs 0.75 [( 20 psf) ( 11.5 ft^2)] / 8 = 248.0 ft/lbs #3: 128.9 ft/lbs + 50.4 ft/lbs - 810.8 ft/lbs = -631.5 ft/lbs 0.6 [( 13 psf) ( 11.5 ft^2)] / 8 = 128.9 ft/lbs 0.6 [( 29.2 lbs) ( 11.5 ft)] / 4 = 50.4 ft/lbs 0.6 [( 470.0 lbs) ( 11.5 ft)] / 4 = 810.8 ft/lbs Section Required: 665.1 ft/lbs (12) (0.7) / 1518 psi = 3.7 cu in Section Provided: 1.5 ( 5.5 ^2) / 6 = 7.6 cu in 7.6 cu in > 3.7 cu in, OK Calculated Deflection: [5( 33 psf / 12) ( 138 in^4)] / [384 (1200000) ( 20.8 )] = 0.52 in Allowable Deflection: 138 in / 240 = 0.58 in 0.58 in > 0.52 in, OK NOTICE: VISION CIVIL ENGINEERING: JENNIFER KEMME, PE ANY CHANGES TO OR USES OF THESE DOCUMENTS 12273 11TH STREET, YUCAIPA, CA 92399 WITHOUT THE WRITTEN CONSENT OF VISION 909.754.8300, JENKEMME@VISIONCE.COM CIVIL ENGINEERING IS STRICTLY PROHIBITED. RCE 73054, EXP 12/31/22 0.75 [(0.6)( Prepared by JENNIFER KEMME 5/20/2022 Page 2 1425 N King St - 2017666807/25/22