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HomeMy WebLinkAboutPV ROOF MOUNT INSTALLATIONGodwin Engineering and Design, LLC 8378 Foxtail Loop Pensacola, FL 32526 D. Chad Godwin, PE Chad@godwineng.com 3'-3" 6'-0" R-1 # Modules (32) Pitch: 36° Azimuth: 239°R-2 # Modules (4) Pitch: 36° Azimuth: 59° R-1 R-2 FRONT OF HOUSE 11/24/2021 GKS . . 6101 Johns Rd, Ste 8 Tampa, FL 33634 727-471-7442 1st Responder Access minimum of 36" unobstructed as per Section R324 of the 2018 IRC Customer Info: S-1 Date: Drawn by: Revised by: Rev #: 00 Rev Date: Page: Represents all Fire Clearance including Alternative methods Meets the requirements of the following- (2020 FL Residential Code & FBC, 7th Edition (2018 International Residential Code) - 2nd Printing modified by the FL Building Standards, 2020 Florida Building Energy Conservation Code 7th edition, County of St. Lucie Code, 2017 National Electric Code.) Legend First responder access Sheet IndexS-1 Cover Sheet / Site Plan S-2 Detail E-1 One - Line E-2 Electrical Code S-1A Mounting Plan Utility Meter PV Disconnect Vent Pipe Chimney Satellite FRONT OF HOUSE N Inverter Type: PV Panel: Racking: Total Wattage: Roof Type: Wind Load: Fastener Type: Iron Ridge XR-100 Enphase IQ7PLUS-72-2-US (36) Silfab-SIL 360 NX 12,960W Flat Tile 28 to 45 Deg Use (2) 5/16" x 4" Lags Layout Subject to Change Based on Site Conditions Meets All Editions of Florida Fire Prevention Code 2020 7th Edition Compass for Aerial General Notes: -Enphase IQ7PLUS-72-2-US Micro Inverters are located on roof behind each module. -First responder access maintained and from adjacent roof. -Wire run from array to connection is 40 feet. System meets the requirements of NFPA 70th Edition, Chapter 11.12 Install will be done to Manufacturer Spec Yaimara Vilches 7679 Wyldwood Way Port Saint Lucie, FL 34986 Meets all requirements of NFPA-1 7th Edition and NFPA-101 3' Access Pathway Ground Access Point Ground Access Point Utility Meter -COGEN Disconnect Located adjacent to Utility meter 2' Gutter 2' Gutter 2' Gutter 2' Gutter Ground Access Point Godwin Engineering and Design, LLC 8378 Foxtail Loop Pensacola, FL 32526 D. Chad Godwin, PE Chad@godwineng.com 11/24/2021 GKS . . 6101 Johns Rd, Ste 8 Tampa, FL 33634 727-471-7442 -Roof Height 15' -Per 2020 FBC, the Roof Mounted PV System will be subject to the following design criteria: Design Wind Speed(Vult) - 160mph 3 sec gust, Exposure Category - B -Designed as per ASCE7-16 Customer Info: S-2 Date: Drawn by: Revised by: Rev #: 00 Rev Date: Page: Inverter Type: PV Panel: Racking: Total Wattage: Roof Type: Wind Load: Fastener Type: Iron Ridge XR-100 Enphase IQ7PLUS-72-2-US (36) Silfab-SIL 360 NX 12,960W Flat Tile 28 to 45 Deg Use (2) 5/16" x 4" Lags Install will be done to Manufacturer Spec Yaimara Vilches 7679 Wyldwood Way Port Saint Lucie, FL 34986 Ironridge XR-100 Roof Section Pitch Roof Rafter and Spacing Overhang Notes: R1-R2 9/12 2"x4" @ 24 O.C.12"Truss General Notes: -L Feet are secured to base mount. @ 72" O.C. in Zone 1, @ 72" O.C in Zone 2e, @ 72" O.C. in Zone 2r & @ 72" O.C. in Zone 3 using (2) 5/16" x 4" stainless steel Lag bolts into rafters. - Subject roof has One layer. - All penetrations are sealed and flashed. Godwin Engineering and Design, LLC 8378 Foxtail Loop Pensacola, FL 32526 D. Chad Godwin, PE Chad@godwineng.com 11/24/2021 GKS . . 6101 Johns Rd, Ste 8 Tampa, FL 33634 727-471-7442 In Case of Emergency Call Solar Bear at 727-471-7442 EC #: EC13006630 60A Service Rated Fused Disconnect Neutral to Ground Bond AC Disconnect 60A Fuse #6 AWG THWN (1) Line 1 (1) Line 2 (1) Neutral in @ least 3/4" Conduit Typically Customer Info: E-1 Date: Drawn by: Revised by: Rev #: 00 Rev Date: Page: Refer to NEC 312.8 for Conditions on taps in switch and over current devices Enclosures. If the conditions are not met a tap box will need to be installed and revision completed. GEC NOTES - Ungrounded system per 690.41(A)(4) - GEC must be installed per 250.64 - GEC must be continuous un-spliced or irreversibly spliced from inverter to existing service ground system or continuous from the arrays to the existing service ground system. - GEC must be min #8 AWG and installed in conduit - If GEC is not in conduit, it must be #6 min Manual Lockable Disconnect Install will be done to Manufacturer Spec Note: -All wiring to meet the 2017 NEC and Florida electric codes. 60A Disconnect -Type of conduit to be determined on site by contractor. Including the label below Yaimara Vilches 7679 Wyldwood Way Port Saint Lucie, FL 34986 Located Adjacent to Utility Meter In Compliance with NEC 705.12(B) Inverter Type: Enphase IQ7PLUS-72-2-US PV Panel: (36) Silfab-SIL 360 NX Total Wattage: 12,960W System meets the grounding requirements of NEC 690.43 All Labels & Markings for photovoltaic system will be reflective and meet all requirements for NFPA 11.12 Disconnects will be Visible, lockable, adjacent to and within 10' of utility meter Meets 11.12.2.1.5 #10 AWG THWN for Home runs (1) Line 1 (1) Line 2 Per Circuit #8 AWG THWN (1) EGC Inside @ least 3/4" Conduit (tbd on site) Photovoltaics: (36) Silfab-SIL 360 NX Inverters: (36) Enphase IQ7PLUS-72-2-US Micro Inverters Circuits: (3) circuits of (12) Modules Maximum Inverters Per 20A Circuit (13) Roof Enphase Combiner Box (1) - 20A Breaker Per Circuit #6 AWG THWN (1) Line 1 (1) Line 2 (1) Neutral #8 (1) EGC in @ least 3/4" Conduit Typically Disconnect AC Max Output Current AC Max Output Current * 1.25% Overcurrent Protection (A)No. of Current Carrying Cond Conductor Gauge (AWG) Enphase Output Ckt Per String To Overcurrent Protection Device Enphase Total Output Ckt AC Max Output Current AC Max Output Current * 1.25% Overcurrent Protection (A) No. of Current Carrying Cond Conductor Gauge (AWG) NEC LABEL NOTES: 1. THE WARNING SIGN(S) OR LABEL(S) SHALL COMPLY WITH NEC 110.21(B) 2. LABELS SHALL BE SUITABLE FOR THE ENVIRONMENT WHERE THEY ARE INSTALLED. 3. LABELS TO BE A MIN LETTER HEIGHT OF 3/8" AND PERMANENTLY AFFIXED. 4. LABELS SHALL ALSO COMPLY WITH THE SPECIFIC REQUIREMENTS OF THE AUTHORITY HAVING JURISDICTION. WARNING ELECTRIC SHOCK HAZARD DO NOT TOUCH TERMINALS. TERMINALS ON BOTH THE LINE AND LOAD SIDES MAY BE ENERGIZED IN THE OPEN POSITION NEMA 3R Junction BoxBlack - L1 Red - L2 Green - Ground Enphase IQ Trunk Cable Q-12-240 #12AWG THHN-THWN-2 UL 9703 Grounding Conductor to be bare #8 Awg #X-IQ-AM1-240Solar Combiner Box 240V PHOTOVOLTAIC SYSTEM ! AC DISCONNECT ! RATED AC OUTPUT CURRENT: 43.56A NOMINAL OPERATING VOLTAGE: 240VAC 3 Circuits 10/15A Breaker for Envoy M (2) ATS 200A Main Distribution Panels Line Side Tap Godwin Engineering and Design, LLC 8378 Foxtail Loop Pensacola, FL 32526 D. Chad Godwin, PE Chad@godwineng.com 11/24/2021 GKS . . 6101 Johns Rd, Ste 8 Tampa, FL 33634 727-471-7442 In Case of Emergency Call Solar Bear at 727-471-7442 EC #: EC13006630 In Case of Emergency Call Solar Bear at 727-471-7442 EC #: EC13006630 Customer Info: E-2 Date: Drawn by: Revised by: Rev #: 00 Rev Date: Page: GEC NOTES - Ungrounded system per 690.41(A)(4) - GEC must be installed per 250.64 - GEC must be continuous un-spliced or irreversibly spliced from inverter to existing service ground system or continuous from the arrays to the existing service ground system. - GEC must be min #8 AWG and installed in conduit - If GEC is not in conduit, it must be #6 min Design Temperature (°F) Max Ambient Temp. Range (°F) Temp. Rating of Conductor No. of Current Carrying Cond AC Max Output Current 94 Enphase Total Output Ckt To Overcurrent Protection Device 87-9575°C <4 43.5654.5 60 0.94 100% 310.15(B)(2)(a) 310.15(B)(3)(a) 690.8(A)(3) 690.8(B) 310.15(B)(2)(a) 310.15(B)(3)(a) 310.15(B)(16) AC Max Output Current * 1.25% Overcurrent Protection (A) Amb. Temp Correction Factor Raceway Fill Adjustment Factor Cond. Gauge (AWG) Cond. Allowable Ampacity (Amps) Cond. Adjusted Ampacity (Amps) Install will be done to Manufacturer Spec Including the label below Yaimara Vilches 7679 Wyldwood Way Port Saint Lucie, FL 34986 Inverter Type: Enphase IQ7PLUS-72-2-US PV Panel: (36) Silfab-SIL 360 NX Total Wattage: 12,960W System meets the grounding requirements of NEC 690.43 All Labels & Markings for photovoltaic system will be reflective and meet all requirements for NFPA 11.12 Disconnects will be Visible, lockable, adjacent to and within 10' of utility meter Note: -Subject PV Systems has been designed to meet the requirments of the NEC 2017, and those set forth by the Florida Solar Energy Center Certification, Including Maximum Number of Module Strings, Maximum number of modules per string, Maximum Output, Module Manufacturer and model number, inverter manufacturer and model number, as applicable. Rapid Shutdown Built in Per Code NEC 690.12 Conductors have a min ampacity of 60 amperes Per Code NEC 230.79(D) PV AC disconnect is lockable in the open position per code NEC 705.22(7) Labels will be placed in the correct location Per Code NEC 690.56(B), 690.56(C), & 690.53 Metallic conduits, raceways or flexible metal conduit exceeding 6 feet in length are not permitted in accordance with NEC article 690.31(G). Include required label for metallic raceways and conduits to sheet E-1 per NEC article 690.31(G)(3). Add required label to sheet E-1 per NEC article 705.10. Include required label to sheet E-1 per NEC article 705.12(B) Photovoltaic AC disconnect shall be capable of being locked in the open position per NEC article 705.22(6). Photovoltaic AC Overcurrent protection shall be located within 10 feet of the point where conductors are connected to the service per NEC 705.31. 705.12(B)(3) 705.12(B)(2)(3)(b) NEC 705.10 A permanent plaque or directory, denoting the location of all electric power source disconnecting means on or in the premises, shall be installed at each service equipment location and at the location(s) of the system disconnect(s) for all electric power production sources capable of being interconnected. One sign required for each PV system. -Markings Shall Be reflective, Weather Resistant and suitable for the environment. -Markings Shall be red with white lettering with minimum 38" Capital Letters Disconnect means shall be provided for alldisconnecting all ungrounded conductors that supplyor pass through the building or structure Per Code2017 NEC Section 225.31 & Section 225.32 In compliance with NEC 250.58, NEC 690.8, NEC 250.24, NEC250.24(D) NEC 690.31 (G)(3) NEC 690.35 E04. Construction documents specify PV system circuits installed on or in buildings include a rapid shutdown function that controls specific conductors in accordance with NEC article 690.12. E05. These construction documents specify that a label is provided with the method to initiate rapid shut down per 690.12(4). E06. Construction drawings specify buildings or structures with both utility service and a PV system, complying with NEC article 690.l2 shall have a permanent plaque or directory including the following wording: “PHOTO VOLTAIC SYSTEM EQUIPPED WITH RAPID SHUTDOWN” as per NEC article 690.56 (C). E07. Construction documents specify PV power circuit labels shall appear on every section of the wiring system that is separated by enclosures, walls, partitions, ceilings, or floors. E08. Construction documents specify all warning sign(s) or label(s) shall comply with NEC article 110.21 (B). Label warnings shall adequately warn of the hazard. Labels shall be permanently affixed to the equipment, and Labels required shall be suitable for the environment. Markings shall be placed on all DC Conduits, DC Combiners, Raceways, Enclosures, Junction Boxes, and Cable Assemblies at every 10', turns, and above and below penetrations in compliance with NFPA System is in complaince with FFPC 1:11.12 7th Edition. Smoke Detectors will be added as per FBC 553.883 J-Box not penetrating roof Permanent sticker added to disconnect Apply to Main Disconnect Figure 690.56(C)(1)(a) Label for PV Systems thatShut down the array and the conductors leaving the array Disconnect is in compliance 230.72 Supply side disconnect adjacent to Msp Over Current Protection Device is "Next size up"Based on Inverter Maximum Continuous OutputCurrent Rating 2017 NEC 240.4(B) All Exterior equipment is A minimum of Nema-R3 Rated All Interactive System(S) Points of interconnectionwith other sources shall be marked at an accesiblelocation at the disconnecting means as a powersource and with the rated ac output current and thenominal operating AC voltage. Per NEC 690.54 -A placard will be added with instructions and locations to be in compliance with 690.12, 690.56(B) and NEC 705.10 -All new equipment located adjacent to Meter on exterior wall Everything will be built to Code without all Specifics labeled on plan In compliance with 230.71 The Placard shall be permanently riveted..., and shall be made of red, weatherproof, hard plastic, with engraved white block lettering. WARNING: DUAL POWER SUPPLY SOURCES: UTILITY GRID AND PV SOLAR ELECTRIC SYSTEM WARNING: INVERTER OUTPUT CONNECTION: DO NOT RELOCATE THIS OVERCURRENT DEVICE PHOTOVOLTAIC SYSTEM EQUIPPED WITH RAPID SHUTDOWN WARNING: DEDICATED SOLAR PANEL DO NOT CONNECT ANY OTHER LOADS WARNING:PHOTOVOLTAIC POWER SOURCE SOLAR PV SYSTEM EQUIPPED WITH RAPID SHUTDOWN TURN RAPID SHUTDOWN SWITCH TO THE "OFF" POSITION TO SHUT DOWN PV SYSTEM AND REDUCE SHOCK HAZARD IN THE ARRAY. SOLAR ELECTRIC PV PANELS 3/8 IN MIN. TEXT 3/16 IN MIN. TEXT ! WARNING ! POWER SOURCE OUTPUT CONNECTION: DO NOT RELOCATE THIS OVERCURRENT DEVICE Plans Satisfy NEC 250.94 & NEC250.53(A)(2) Combiner box in compliance Per Code NEC 705.12 3* 20A < 125A *No other loads to be added Line Side Tap will be done in ATS adjacent to Utility Meter 665 61.1 65*.94*1=61.1 Note: -All wiring to meet the 2017 NEC and Florida electric codes. 60A Disconnect -Type of conduit to be determined on site by contractor. Godwin Engineering and Design, LLC 8378 Foxtail Loop Pensacola, FL 32526 D. Chad Godwin, PE Chad@godwineng.com R-1 # Modules (32) Pitch: 36° Azimuth: 239° 3'-3" 6'-0" R-2 # Modules (4) Pitch: 36° Azimuth: 59°3'-11"26'-4" 28'-0" 4'-5" 39'-8" 22'-10" 11'-11" 6'-7" 11'-0" 7'-0" 23'-3" 12'-1" 15'-5" 6'-8" 76'-2" 18'-4"XR-100 17' XR-100 14' XR-100 7' Splice Bar 6 11 Iron Ridge UFO's 5482 8 4' Iron Ridge Sleeves/End Caps 20 Iron Ridge Ground Lugs 25 Iron Ridge Rail Silfab-SIL 360 NXEnphase IQ7PLUS-72-2-US 3636 6x6 J-Box 60A Fused Disconnect 1260A Fuses 320A Breakers 1Enphase Combiner Box Quick Mount Flat Tile L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L L 11/24/2021 GKS . . 6101 Johns Rd, Ste 8 Tampa, FL 33634 727-471-7442 Customer Info: S-1A Date: Drawn by: Revised by: Rev #: 00 Rev Date: Page: Inverter Type: PV Panel: Racking: Total Wattage: Roof Type: Wind Load: Fastener Type: Iron Ridge XR-100 Enphase IQ7PLUS-72-2-US (36) Silfab-SIL 360 NX 12,960W Flat Tile 28 to 45 Deg Use (2) 5/16" x 4" Lags Install will be done to Manufacturer Spec Yaimara Vilches 7679 Wyldwood Way Port Saint Lucie, FL 34986 Plans satisfy zones FBC-1510.7.1 L Proposed Mounting locations Max cantilever is 24" as per manufacturer spec. Max Cantilever = Max Span * (13)=72"*(13)=24"Zone 1, 2e, 2r & 3: Gutter Gutter JUST-IN-TIMEPERFORMERTOPBAAARRAJUST-IN-TIMETOPPERFORMERBAAARRASIL-360 NXINDUSTRY LEADING WARRANTYAll our products include an industry leading 25-year product workmanship and 30-year performance warranty.35+ YEARS OF SOLAR INNOVATIONLeveraging over 35+ years of worldwide experience in the solar industry, Silfab is dedicated to superior manufacturing processes and innovations such as Bifacial and Back Contact technologies, to ensure our partners have the latest in solar innovation.NORTH AMERICAN QUALITYSilfab is the leading automated solar module manufacturer in North America. Utilizing premium quality materials and strict quality control management to deliver the highest eɝciency, premium qualityPV modules. BAA / ARRA COMPLIANTSilfab panels are designed and manufactured to meet Buy American Act Compliance. The US State Department, US Military and FAA have all utilized Silfab panels in their solar installations. LIGHT AND DURABLE Engineered to accommodate high wind load conditions for test loads validated up to 4000Pa uplift. The light-weight frame is exclusively designed for wide-ranging racking compatibility and durability.QUALITY MATTERS Total automation ensures strict quality controls during the entire manufacturing process at our ΖS2 certiȴed facilities. DOMESTIC OPERATIONSOur 500+ North American team is ready to help our partners win the hearts and minds of customers, providing customer service and product delivery that is direct, eɝcient and local. AESTHETICALLY PLEASINGAll black sleek design, ideal for high-proȴle residential or commercial applications.PID RESISTANTPID Resistant due to advanced cell technology and material selection. In accordance to IEC 62804-1.* Chubb provides error and omission insurance to Silfab Solar Inc.HIGH EFFICIENCYPREMIUMMONO-PERCPV MODULESilfab-SIL-360-N;-20210112 ȏ No reproduction of any kind is allowed. Data and information is subMect to modiȴcations without notice. kSilfab,2020.Silfab Solar Inc.240 Courtneypark Drive EastMississauga ON L5T 2Y3 CanadaTel +1 905-255-2501 | Fax +1 905-696-0267info@silfabsolar.com | www.silfabsolar.comSilfab Solar Inc.800 Cornwall AveBellingham WA 98225 USATel +1 360-569-4733EOHFWULFDO SSHFLȴFDWLRQV SIL3 N; PRQR PERCTest ConditionsSTCNOCTModule Power (Pmax)Wp360258Maximum power voltage (Vpmax)V36.633.1Maximum power current (Ipmax)A9.97.8Open circuit voltage (Voc) V44.540.4Short circuit current (Isc) A10.58.2Module eɝciency%19.717.6Maximum system voltage (VDC)V1000Series fuse ratingA20Power ToleranceWp0 to +10Measurement conditions STC 1000 Wm2 ȏ AM 1.5 ȏ Temperature 25 rC ȏ NOCT 800 Wmt ȏ AM 1.5 ȏ Measurement uncertainty ȱ 3%• Sun simulator calibration reference modules from Fraunhofer Institute. Electrical characteristics may vary by ±5% and power by 0 to +10W.THPSHUDWXUH RDWLQJVSIL3 N; PRQR PERCTemperature Coeɝcient Isc +0.064 %/°CTemperature Coeɝcient Voc-0.28 %/°CTemperature Coeɝcient Pmax-0.36 %/°CNOCT (± 2°C)46 °COperating temperature-40/+85 °CMHFKDQLFDO PURSHUWLHV DQG CRPSRQHQWVSIL3 N; PRQR PERCMetricImperialModule weight20±0.2 kg44±0.4 lbsDimensions (H x L x D)1832 mm x 1000 mm x 38 mm72.13 in x 39.4 in x 1.5 inMaximum surface load (wind/snow)*4000 Pa rear load / 5400 Pa front load83.5/112.8 lb/ft^2Hail impact resistanceø 25 mm at 83 km/h ø 1 in at 51.6 mphCells66 - Si mono-PERC - 5 busbar158.75 x 158.75 mm66 - Si mono-PERC - 5 busbar62.25 x 62.25 inGlass3.2 mm high transmittance, tempered, DSM anti-reȵective coating 0.126 in high transmittance, tempered, DSM anti-reȵective coatingCables and connectors (refer to installation manual)1200 mm ø 5.7 mm, MC4 from Staubli 47.2 in, ø 0.22 (12AWG), MC4 from Staubli BacksheetHigh durability, superior hydrolysis and UV resistance, multi-layer dielectric ȴlm,ȵuorine-free PV backsheetFrameAnodized Aluminum (Black)Bypass diodes3 diodes-30S4045T (45V max DC blocking voltage, 30A max forward rectiȴed current)Junction BoxUL 3730 Certiȴed, IEC 62790 Certiȴed, IP67 ratedWDUUDQWLHVSIL3 N; PRQR PERCModule product workmanship warranty25 years**Linear power performance guarantee30 yearsȲ 97.1% end 1st yearȲ 91.6% end 12th yearȲ 85.1% end 25th yearȲ 82.6% end 30th yearCHUWLȴFDWLRQVSIL3 N; PRQR PERCProductULC ORD C1703, UL1703, CEC listed***, UL 61215-1/-1-1/-2, UL 61730-1/-2, IEC 61215-1/-1-1/-2***. IEC 61730-1/-2***, CSA C22.2#61730-1/-2, IEC 62716Ammonia Corrosion; IEC61701:2011 Salt Mist Corrosion Certifed, UL Fire Rating: Type 2Factory ISO9001:2015All states except CaliforniaModules Per Pallet: 26Pallets Per Truck: 34Modules Per Truck: 8847.87" [200mm]16.67" [423.5mm]38.78" [985mm]2.36" [60mm]38.11" [968mm]Mounting Hole(x4)Drainage (x8)Ø4.2mm (x2)Grounding Hole47.24"[1200mm]39.37" [1000mm]72.13" [1832mm]1.5" [38mm]72.13" [1832mm]1.02" [26mm]0.07" [1.8mm]1.5" [38mm]0.47" [12mm]0.39" [10mm]0.28" [7mm]CC*w Warning. Read the Safety and Installation Manual for mounting speciȴcations and before handling, installing and operating modules.**12 year extendable to 25 years subject to regis-tration and conditions outlined under “Warranty” at www.silfabsolar.com.***Certiȴcation and CEC listing in progress. PAN ȴles generated from 3rd party performance data are available for download at: www.silfabsolar.com/downloads.CaliforniaModules Per Pallet: 26Pallets Per Truck: 32Modules Per Truck: 832 Tech BriefSolar Is Not Always SunnyOver their lifetime, solar panels experience countless extreme weather events. Not just the worst storms in years, but the worst storms in 40 years. High winds capable of ripping panels from a roof, and snowfalls weighing enough to buckle a panel frame. XR Rails are the structural backbone preventing these results. They resist uplift, protect DJDLQVWEXFNOLQJDQGVDIHO\DQGHIÀFLHQWO\transfer loads into the building structure. Their superior spanning capability requires fewer roof attachments, reducing the number of roof penetrations and the amount of installation time.XR Rail FamilyForce-Stabilizing CurveSloped roofs generate both vertical and lateral forces on mounting rails which can cause them to bend and twist. The curved shape of XR Rails is specially designed to increase strength in both directions while resisting the twisting. This unique feature ensures greater security during extreme weather and a longer system lifetime.Compatible with Flat & Pitched RoofsRoof Mount utilizes XR Rails, along with optional all-in-one attachments, WRVHFXUHV\VWHPVÁXVKagainst residential roofs.Roof Mount utilizes XRRails, along with optionalall-in-one attachments,WRVHFXUHV\VWHPVÁXVKagainst residential roofs.Corrosion-Resistant MaterialsXR Rails are compatible with FlashFoot and other pitched roof attachments.IronRidge offers a range of tilt leg RSWLRQVIRUÁDWroof mounting applications.All XR Rails are made of 6000-series aluminum alloy, then protected with an DQRGL]HGÀQLVK$QRGL]LQJSUHYHQWVVXUIDFHand structural corrosion, while also providing a more attractive appearance. XR Rail Family7KH;55DLO)DPLO\RIIHUVWKHVWUHQJWKRIDFXUYHGUDLOLQWKUHHWDUJHWHGVL]HV(DFKVL]HVXSSRUWVVSHFLÀFdesign loads, while minimizing material costs. Depending on your location, there is an XR Rail to match. © 2020 IronRidge, Inc. All rights reserved. Visit www.ironridge.com or call 1-800-227-9523 for more information. Version 1.20Tech BriefRail SelectionThe table below was prepared in compliance with applicable engineering codes and standards.* Values are based on the following criteria: ASCE 7-16, Gable Roof Flush Mount, Roof Zones 1 & 2e, Exposure B, Roof 6ORSHRIWRGHJUHHVDQG0HDQ%XLOGLQJ+HLJKWRIIW9LVLW,URQ5LGJHFRPIRUGHWDLOHGFHUWLÀFDWLRQOHWWHUVLoadRail SpanSnow (PSF) Wind (MPH) 4’5’ 4”6’8’10’12’None90120140XR10XR100XR100016020901201401603090160409016080160120160XR100XR100 is the ultimate residential mounting rail. It supports a range of wind and snow conditions, while also maximizing spans up to 10 feet.• ·VSDQQLQJFDSDELOLW\• Heavy load capability• &OHDU EODFNDQRGL]HGÀQLVK• Internal splices availableXR10;5LVDVOHHNORZSURÀOHPRXQWLQJrail, designed for regions with light or no snow. It achieves spans up to 6 feet, while remaining light and economical.• ·VSDQQLQJFDSDELOLW\• Moderate load capability• &OHDU EODFNDQRGL]HGÀQLVK• Internal splices availableXR1000XR1000 is a heavyweight among VRODUPRXQWLQJUDLOV,W·VEXLOWWRKDQGOHextreme climates and spans up to 12 feet for commercial applications.• ·VSDQQLQJFDSDELOLW\• Extreme load capability• &OHDUDQRGL]HGÀQLVK• Internal splices available;HISLPZTLHU[[VILHZPTWSPÄLKZWHUJOHY[MVYJVU]L`PUNNLULYHSYHPSJHWHIPSP[PLZ<ZLHWWYV]LKJLY[PÄJH[PVUSL[[LYZMVYHJ[\HSKLZPNUN\PKHUJL GODWIN ENGINEERING AND DESIGN, LLC 8378 Foxtail Loop, Pensacola, FL 32526 | (850)712-4219 | chad@godwineng.com December 1, 2021 To: St. Lucie County Building Division 2300 Virginia Avenue Ft. Pierce, FL 34982 Re: Vilches – Residential PV Roof Mount Installation 7679 Wyldwood Way Port Saint Lucie, FL 34986 Plan Reviewer, This letter is regarding the installation of a new roof mounted Solar PV System on the existing residential structure at the address above. I have reviewed the attachment plan and have determined that the roof mounted PV system is in compliance with the applicable sections of the following Codes as amended and adopted by the jurisdiction: 2020 Florida Building Code 7th Edition, FBC ASCE 7 Min. Design Loads for Buildings & Other Structures Per 2020 FBC, the Roof Mounted PV system will be subject to the following design criteria: Design Wind Speed(Vult) - 160mph 3sec gust, Exposure Category – B The PV System consist of the modules, railing, and connection hardware. The system will add a dead load of approximately 3 psf to the roof. The existing roof covering is Barrel tile with min. ½” plywood decking and 2” x 4” roof trusses 24” O.C. The roofing, decking, and roof trusses are in good condition. The existing structure will be adequate for supporting the additional PV dead load and wind loads. The securement method of the PV system is to be flush mounted to the Barrel tile roof with the Ironridge railing and flashings/attachments. The attachments can be attached up to 72” apart in roof zones 1, 2e, 2r, & 3. The mounts should be staggered, where possible, to allow distribution of the design loads evenly to the structure. The mounts shall be installed using (2) 5/16” x 4” stainless steel Lag bolts into rafters. Please see attached documents and contact me should you have any questions. Sincerely, D. Chad Godwin, PE 81360 Exp. 02/28/2023 Risk Category II Table 1.5-1 Wind Speed (asd)124 mph FRC R301.2.1.3 Basic Wind Speed (Ult)160 mph Figure 26.5-1B Effective Wind Area 19.72 ft2 26.20 Roof Angle Wind Directionality Kd 0.85 Table 26.6-1 Roof Type Hip Topographic factor Kzt 1.00 26.8 or 26.8.2 Exposure Cat.B,C, or D B Section 26.7 Ground Elevation Factor Ke 1.00 Table 26.9-1 Mean Roof Height h 15.00 ft Velocity Exposure Coefficient Kz 0.70 Table 26.10-1 Roof attachment Array Edge Factor gE 1.50 29.4.4 *Modules are considered Exposed Rafter/Truss Spacing 24 in O.C.Solar Panel Equalization Factor ga 0.68 Fig. 29.4-8 No. of Rails 2 Velocity Pressure qh 23.40 psf qh=0.00256 KzKztKdKeV2 No. of Modules - Portrait 36 Added Safety Factor 1.2 No. of Modules - Landscape 0 Allowable Pullout per mount 1419.3 lbs Module Model Number 0.4h or 0.6h 6.00 ft Flat - 0.6h, Gable, Hip - 0.4h bldg. least horizontal dim (typ.)180 in 10% of least horizontal dim 1.50 ft Elevation <1000 ft Roof Zone Set Back a 3.00 ft Est. # of attachment points 54 h2 5 in Not > 10in(panel height above roof) 2h2 10 in *min distance array shall be from the roof edge, Gable Ridge, or hip ridge 36 0.25 in min gap between all panels but not > 6.7ft Wmod 44 lbs 3.28 ft d1 1.00 ft Horizontal distance orthogonal to panel edge Wmods 1584 lbs 6.01 ft d2 0.25 ft Horizontal distance from edge of one panel to the nearest edge in the next row Wmic 144 lbs 19.72 ft2 0.5h 7.50 ft *modules are considered exposed that are within 1.5Lp from roof edge WPV rail 25 lbs Wtotal 1753 lbs Ultimate Allowable AT 709.94 ft2 113.4 75.6 Eq.1 Point Load = Roof Zone psf * TA DPV 2.47 psf -84 -56.0 Eq.2 TA = (Module Length /2) * Max Span Weight/attachment 32.5 lbs Eq.3 *Max span Equation, SF = Allowable pullout / Point Load Eq.4 Max Span = Allowable Pullout / (SF * Roof Zone psf * L/2) 1 2e 2r 3 0 0 a) GCp - Uplift -1.4 -1.5 -2.1 -2.1 #N/A #N/A GCp - Down 0.7 0.7 0.7 0.7 #N/A #N/A b)Allowable Module load ratings are determined by SF = 1.5 p = qh(GCp)(gE)(γa)-31.0 -33.4 -47.8 -47.8 #N/A #N/A psf 29.4-7 p = qh(GCp)(gE)(γa)16.8 16.8 16.8 16.8 #N/A #N/A psf 29.4-7 Max Allowable Span 6 6 6 6 #N/A #N/A ft *notes Max Cantilever (in)24 24 24 24 #N/A #N/A Max span * 33% (in) ASCE 7-16 CHAPTER 29 WIND LOADS - Rooftop Solar Panels Minimum Design Loads - Part 1: Enclosed(Gable,Hip,Flat h<60ft, 0°<θ<45°) Notes PV Attachment - Results Total Weight Total Area Dead Load Array Width Micro/optimizer Length PV Rail Module Area PV Dead Load Module and Racking Specs # of Modules The Max span between attachment points must not exceed the rail spans provided by racking manufacture. Wind Load Paramaters 28° to 45° SIL-360 NX Roof Zones - Hip 28° to 45° 10% of least hor. Dim. Or 0.4h, whichever is smaller, but not less than either 4% of Least hor. Or 3ft. (flat roof - 0.6h) Module Dimensions, LxWxH (in) Load Rating - Snow(psf) Load Rating - Wind(psf) Wind Load Parameters - Inputs (2)5/16" x 4" Lag Screw 72.13 x 39.37 x 1.5 Module load ratings