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Home My WebLink AboutPV2022-161 - CalcsPV202°2-� iw/ i M Monnonr z Date: 05/20/2022 Job Number: 7256 Prepared for: Sun Solar Energy Solutions, 4085 E La Palma Ave. Suite B Anaheim, CA 92807 Project.: Katkin Residence , 2500 Marino Dr, Newport Beach, CA, 92663 The following calculations are for the structural engineering design of the photovoltaic panels and are valid only for the structural info referenced in the stamped plan set. The verification of such info is the responsibility of others. After review, I certify that the roof structure has sufficient structural capacity for the applied PV loads. All PV mounting equipment shall be designed and installed per manufacturer's approved installation specifications. Engineerinc.io 303 N Glenoaks Blvd Suite 200 Burbank, CA 91502 (747) 333 - 5991 new@engineerinc.io Exp. -Date : 03/31/2024 Date Certified and Signed: 05/20/2022 YR rta y ne NOISI/1la ONIa'llne 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1 (747)333.5991 1 new@engineerinc.io Solar Module Details Module Type Sunpower Module Quantity - 30 Module Model Number 425 watt Design Criteria Code: 2019 California Building Code ASCE 7-16 Live Load (pat) 20 Ult Wind Speed (mph) 120 Exposure Cat C Ground Snow (pat) 20 Structure Geometry Eave Height, he (ft) 15 to 20ft Pitch of main roof (deg) 26 Building Length; L (ft) 85 Building Width, B (ft) 60 Roof Area (Module Area) ft2 5100.00 NOTE: attachments should be installed in a staggered configuratiion to properly destributor loading. Roof Properties Roof Geometry type ,,.,... Roof Type Roof Pitch (deg) Gable Roof Truss 26 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1 (747)333-5991 1- new@engineerinc.io Roofing Type Sheathing Type Wood species Wood Fb (psf) Wood Fv (psf) Wood E (psf) Purlin C/C Spacing (in) Rafter C/C. Spacing (in.) Purlin Section Thickness, b.(in.) Section Depth, d (in.) Rafter Comp Shingles 1/2" OSB Board No. 2, Douglas Fir -Larch 900 180 1600000 12 24 2 4 Section Thickness, b (in.) 2 Section Depth, d.(in.) 6 Maximum Rafter Span (ft) 11 Factors 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1 (747)333-5991 1 new@engineerinc.io �s„ Dead Load(psf) Comp Shingles 3.00 psf 1/2" OSB Board 2.00 psf Insulation 2.00 psf Total Roof 1DL 7 psf No. 2, Douglas Fir -Larch 131.00IWO Solar Panel DL 13.00 psf Roof 1 Roof Dist DL 7.00 psf M Roof Dist DL 8704.74 Def Roof Disb DL 3.30 PV unl Dist DL 3.00 psf M PV uni Dist DL 39.02 Def PV uni Dist DL 0.01 Total Uni DL 11.00 psf M Total DL 8743.76 Def Total DL 3.31 Snow Load(psf) Ground Snow Load, pg 20 Importance Factor, Ic 1 Thermal Factor, Ct 1 Exposure Factor, Ce 1 Flat roof snow, pF 20 Slope Factor, Cs 1 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1 (747)333-5991 1 new@engineerinc.io Sloped Row Snow, ps 20 Uni Dist_S 20.00 M uni Dist s 302.50 Def uni Dist_S 0.11 Wind Load Ultimate Wind Speed 120 - Directionality Factor,kd 0.85 Topographic factor 1..00 Velocity pressure exposure factor,kz 0.88 Ground Elevation Factor,ke 1.04 Side Wall Width 60 Median Roof Height 88.23 Velocity pressure,qz 27.57 External Pressure Up,GCp_7 -0.46 External Pressure Up,GCp 2 -0.6 External -Pressure -Up,GCp 3 -1.3 External Pressure Down,GCp 0.04 Design Pressure Up,p 1 -10.60 Design Pressure Up,p_2 -13.83 Design Pressure Up,p 3 -29.96 Design Pressure Up,p 0.92 Uni_Dist_W_up - -29.96 M uni Dist W up -453.15 Def_uni_Dist_W_up -0.17 Uni Dist W down 0.92 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1 (747)333-5991 1 new@engineerinc.io C�1NC M_uni_Dist_W_down 13.92 Def uni_Dist W_down 10.01 Lag Screw Uplift Check (ASD) 5/16" Lag Screw Withdrawl value 205.00 Win Lag Screw Penetration 2.50 in Roof1 0.6D+0.6W(up z1) 3792.072 > 512.5 Roof1 0.6D+0.6W(up z2) 3790.134 > 512.5 Framing Check (ASD): Roof1 uni 1.OD+0.6W 8752.11 > 1020.94 Lag Screw Penetration 8976.90 > 1020.94 Roof1 0.6D+0.6W(up z1) 9046.26 > 733.80 Roof1 0.6D+0.6W(up z2) 4974.37 > 1020.94 Seismic Check: Wood 2x4 Studs @ 16" Gypsum M isc(i nsulatioon,etc) Total wall DL Total Wall Area (Approx) Total Wall W Total Roof DL Total Roof Area (Approx) Total Roof W 5.00 psf 2.00 psf 3.00 psf 2.00 psf 12.00 psf 2940.00 ftz 35280 Ibs 7.50 psf 1601.97ft2 12014.775 Ibs 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1 (747)333-5991 1 new@engineerinc.io h l� PV Panel W 3.00 psf Area of panel 600.00 ft2 Total Roof W 953.97 Ibs % increase=(Wadditional)/Wexisting 12.16% OK The increase in weight as a result of the solar system is less than 10% of the existing structure and therefore no further seismic analysis is required. Limits of Scope of Work and Liability Existing structure is assumed to have been designed and constructed following appropriate codes at time of erection, and assumed to have appropriate permits. The calculations produced are only for the roof framing supporting the proposed PV installation referenced in the stamped planset and were completed according to generally recognized structural analysis standards and procedures, professional engineering and design experience, opinions and judgements. Existing deficiencies which are unknown or were not observable during time of inspection are not included in this scope of work. All PV modules, racking', and mounting equipment shall be designed and installed per manufacturer's approved installation specifications. The Engineer of Record and Engineerinc assume no responsibility for misuse or improper installation. This analysis is not stamped for water leakage. Framing was determined based on information in provided plans and/or photos, along with engineering judgement. Prior to commencement of work, the contractor shall verify the framing sizes, spacings, and spans noted in the stamped plans, calculations, and cart letter (where applicable) and notify the Engineer of Record of any discrepancies prior to starting construction. Contractor shall also verify that there is no damaged framing that was not addressed in stamped plans, calculations, and cart letter (where applicable) and notify the Engineer of Record of any concerns prior to starting construction. Prior to the commencement of work, the contractor shall verify the existing roof and framing conditions. Notify Engineerinc and the engineer of record of any Discrepancies prior to starting construction. Prior to the commencement of work, the contractor shall inspect framing for any damage such as water damage, cracked framing, etc. and notify the E.O.R. if any issues are found.These plans/calculations are stamped for structural code compliance of the roof framing supporting the proposed PV installation reference only. These plans/calculations are not stamped for water leakage. PV modules, racking, and attachment components must follow manufacturer guidelines and requirements. 303 N. Glenoaks Blvd Suite #200 Burbank, CA 91502 1 (747)3335991 1 new@engineerinc.io Batteries will be blockaded from vehicle impact (Position of batteries are tucked into corner, not accessable GARAGE LAYOUT to vehicles) In compliance with CFC 312 20' Clearance U C U C N N N N -6 u Y Y M M BUILDING DIVISION J U N - 1 2022 1. Rooms and areas within dwelling units, basements, and attached garages that are currently protected with an automatic fire sprinkler system AND have a water -flow device that initiates an audible notification for residential occupants will be considered as having met the intent of the code: a. Section R314.4 of the 2019 CRC requires that the alarm shall be clearly audible in all bedrooms over background noise levels with all intervening doors closed. This can be accomplished by interconnecting the interior smoke alarms to the water -flow device on the fire sprinkler system riser. NOTE: Ess shall be protected from vehicle impact per California Fire Code 1206.11.7. NOTE: Home includes fire sprinklers. NOTE: ESS listed and labeled for use in accordance with UL 9540A. NOTE: Individual units shall be separated for each other by at least 6 inches per UL 9540A Testing NOTE:A 36-inchwide pathway shall be provided to the emergency escape and rescue opening. Roof access is not located in areas that require placement of ground ladders over exterior wall openings CRC R331.4.1. NOTE: Conduit will run through attic NOTE: ESS shall be located not less than T from doors and windows directly entering dwelling unit_ CRC R327.4.3 NOTE: WORKSPACE IN FRONT OF SOLAR EQUIPMENT SHALL BE MINIMUM 3' ESS located inside the building NOTE: Home includes fire sprinklers in garage where batteries are stored batteries will be mounted to garage wall. Batteries will be blockaded from vehicle impact (Position of batteries are tucked into corner, not accessable GARAGE LAYOUT to vehicles) In compliance with CFC 312 20' Clearance U U N A N N N N Ti u Y Y 3 3 1. Rooms and areas within dwelling units, basements, and attached garages that are currently protected with an automatic fire sprinkler system AND have a water -flow device that initiates an audible notification for residential occupants will be considered as having met the intent of the code: a. Section R314.4 of the 2019 CRC requires that the alarm shall be clearly audible in all bedrooms over background noise levels with all intervening doors closed. This can be accomplished by interconnecting the interior smoke alarms to the water -flow device on the fire sprinkler system riser. NOTE: Ess shall be protected from vehicle impact per California Fire Code 1206.11.7. NOTE: Home includes fire sprinklers. NOTE: ESS listed and labeled for use in accordance with UL 9540A. NOTE: Individual units shall be separated for each other by at least 6 inches per UL 9540A Testing NOTE:A 36-inchwide pathway shall be provided to the emergency escape and rescue opening. Roof access is not located in areas that require placement of ground ladders over exterior wall openings CRC R331.4.1. NOTE: Conduit will run through attic NOTE: ESS shall be located not less than T from doors and windows directly entering dwelling unit. CRC R327.4.3 NOTE: WORKSPACE IN FRONT OF SOLAR EQUIPMENT SHALL BE MINIMUM 3' ESS located inside the building NOTE: Home includes fire sprinklers in garage where batteries are stored batteries will be mounted to garage wall. Batteries will be blockaded from vehicle impact (Position of batteries are tucked into corner, not accessable GARAGE LAYOUT to vehicles) In compliance with CFC 312 20' Clearance C N N U Y 3 in 1. Rooms and areas within dwelling units, basements, and attached garages that are currently protected with an automatic fire sprinkler system AND have a water -flow device that initiates an audible notification for residential occupants will be considered as having met the intent of the code: a. Section R314.4 of the 2019 CRC requires that the alarm shall be clearly audible in all bedrooms over background noise levels with all intervening doors closed. This can be accomplished by interconnecting the interior smoke alarms to the water -flow device on the fire sprinkler system riser. NOTE: Ess shall be protected from vehicle impact per California Fire Code 1206.11.7. NOTE: Home includes fire sprinklers. NOTE: ESS listed and labeled for use in accordance with UL 9540A. NOTE: Individual units shall be separated for each other by at least 6 inches per UL 9540A Testing NOTE:A 36-inchwide pathway shall be provided to the emergency escape and rescue opening. Roof access is not located in areas that require placement of ground ladders over exterior wall openings CRC R331.4.1. NOTE: Conduit will run through attic NOTE: ESS shall be located not less than T from doors and windows directly entering dwelling unit. CRC R327.4.3 NOTE: WORKSPACE IN FRONT OF SOLAR EQUIPMENT SHALL BE MINIMUM 3' ESS located inside the building NOTE: Home includes fire sprinklers in garage where batteries are stored batteries will be mounted to garage wall.