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HomeMy WebLinkAboutCERTIFICATION LETTER1/8 BARuN CORP February 9, 2022 RE: Project Address: Design Criteria: CERTIFICATION LETTER ROBIN DEBIE RESIDENCE 6601 KENWOOD ROAD FORT PIERCE, FL 34951 Applicable Codes = 2020 FLBC/FLEBC 7th Edition, 2020 FLRC 7th Edition, 2018 IEBC/IBC/IRC, ASCE 7-16 and 2018 NDS Risk Category = II Wind Speed = 160 mph, Exposure Category C, Partially/Fully Enclosed Method Ground Snow Load = 0 psf Roof 1-7: 2 x 4 @ 24" OC, Roof DL = 7 psf, Roof LL/SL = 18 psf (Non-PV), Roof LL/SL = 0 psf (PV) Roof 8&9 : 2 x 4 @ 24" OC, Roof DL = 7 psf, Roof LL/SL = 20 psf (Non-PV), Roof LL/SL = 0 psf (PV) To Whom It May Concern, A job site survey of the existing framing system of the address indicated above was performed . All structural evaluation is based on the site inspection observations and the design criteria listed above. Existing roof structural framing has been reviewed for additional loading due to installation of PV Solar System on the roof. The structural review applies to the sections of roof that is directly supporting the solar PV system. Based on this evaluation, I certify that the alteration to the existing structure by installation of the PV system, with blocking upgrades in Roofs 3&5 (Hip), meets the prescriptive compliance requirements of the applicable existing building and/or new building provisions adopted/referenced above. Additionally, the PV module assembly including attachment hardware has been reviewed to be in accordance with the manufacturer's specifications and to meet and/or exceed the requirements set forth by the referenced codes. Sincerely, S. M. M e h d i Digitally signed by S. M. Mehdi Zomorodian Zomorodian Date: 1022.02.0921:51:53 06'00' Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com 2/8 BARUN CORP A ROBIN DEBIE RESIDENCE, 6601 KENWOOD ROAD, FORT PIERCE, FL 34951 c• MOUNTING PLANE ROOF PITCH (deg.) RESULT GOVERNING ANALYSIS Roof 1-7 26° OK IEBC 5% IMPACT CHECK Roof 8&9 3° OK IEBC 5% IMPACT CHECK �� STANDOFF HARDWARE EVALUATION FOR WIND UPLIFT MOUNTING PLANE UPLIFT DCR Roof 1-7 36.4% Roof 8&9 88.0% Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com 3/8 PV SYSTEM . LOAD PV module weight 2.50 psf Hardware assembly weight 0.50 psf Total PV System Dead Load PV-DL = 3.00 psf Elm Existing Roofing Material Comp Roof 1 layers 2.50 psf Underlayment 0.50 psf Plywood Sheathing 1.50 psf Framing Weight 2 x 4 @ 24 in. O.C. 0.73 psf Vaulted ceiling No 0.00 psf Miscellaneous 1.50 psf Total Roof Dead Load R-DL = 6.73 psf REDUCED ROOF LIVE LOAD��WXPRESSIION VALUE Roof Live Load Lo 20.00 psf Member Tributary Area At < 200 sf Roof 1-7 Pitch 6/12 or 26' Trubutary Area Reduction Rl 1.00 Slope Roof Reduction Rz 0.90 Reduced Roof Live Load Lr = Lo (Rj (1112) = 18.00 psf SNOW LOAD VALUE Ground Snow Load pg = 0.00 Effective Roof Slope 26' Snow Importance Factor IS = 1.00 Snow Exposure Factor Ce = 1.00 Snow Thermal Factor Ct = 1.10 Minimum Flat Roof Snow Load Pf-min = 0.00 Flat Roof Snow Load pf = 0.00 psf Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com MMMMM BARUN CORP IEBC 5% IMPACT CHECK Roof 1-7 ROBIN DEBIE RESIDENCE, 6601 KENWOOD ROAD, FORT PIERCE, FL 34951 WITH I Roof Dead Load (DL) = EXISTING 6.73 PV PANEL 9.73 Roof Live Load (Lr) = 18.00 0.00 Roof Snow Load (SL) = 0.00 0.00 (DL + Lr)/Cd = 19.78 10.81 (DL + SL)/Cd = 5.85 8.46 Maximum Gravity Load = 19.78 10.81 Load Increase (%) _-45.36% OK IEBC Provision : 2018 psf psf psf psf psf psf The requirements of section 806.2 of 2018 IEBC are met and the structure is permitted to remain unaltered. Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com 5/8 IF g ainfal • Ultimate Wind Speed (mph) = 160 Roof Pitch (deg.) = 26' Risk Category = II Roof Type = Hip Exposure Category = C I<d = 0.85 Mean Roof Height (ft) = 20 Kzt = 1 Solar Array Dead Load (psf) = 3.00 Kz = 0.90 DESIGN • Wind Velocity Press. (qh) = 0.00256*Kz*Kzt*Kd*Ke*VZ = 50.24 psf a (ft) = 3.00 Array Edge Factor (yE) = 1.50 Solar Array Pressure Eq. Factor (ya) = 0.60 Allowable Load = 982.50 Ibs S. Pine, 2.5" lag embedment Max. X - Spacing (ft) (Zone 1) 4.00 Effective Wind Area (ft') 6.80 Max. Y - Spacing (ft) (Zone 1) 1.70 Max. X - Spacing (ft) (Zone 2e & 2r) 4.00 Effective Wind Area (ft') 6.80 Max. Y - Spacing (ft) (Zone 2e & 2r) 1.70 Max. X - Spacing (ft) (Zone 3) 4.00 Effective Wind Area (ft') 6.80 Max. Y - Spacing (ft) (Zone 3) 1.70 ROOFZONE GCp (-) UPLIFT 1 -1.40 UPLIFT PRESSURE (psf) PULLOUTFORCE -36.36 247.27 2e & 2r -2.00 -52.64 357.96 3 -2.00 -52.64 357.96 * Wind calculation is based on ASCE 7-16, 29.4 - C&C, LC#7: 0.61) + 0.6W used. -4.0 •1.8 3.6 A4 3.2 -3.a -xa -Z6 t7 24 . r -21 -20 e� •1.6 C 7 •1.4 43 c. 46 44 �i U +o.z -44 -46 tt n 20 1 10 20 50 '40 200 5001000 (ao (09) (0) (451 M9 (06) {4661i9291 Effective Wind Area, 9 2(M2) 1yy���G! �GIIrI V010 ca 3 PLAN FIGURE 30.3-2G Components and Cladding [h < 60 ft (h < 18.3 m)]: External Pressure Coefficients, (GCP), for Enclosed and Partially Enclosed Buildings -Hip Roofs, 20° <0 < 27° (Roof and Overhang) Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com 6/8 PV SYSTEM . LOAD PV module weight 2.50 psf Hardware assembly weight 0.50 psf Total PV System Dead Load PV-DL = 3.00 psf Elm Existing Roofing Material TPO Roof 1 layers 2.50 psf Underlayment 0.50 psf Plywood Sheathing 1.50 psf Framing Weight 2 x 4 @ 24 in. O.C. 0.73 psf Vaulted ceiling No 0.00 psf Miscellaneous 1.50 psf Total Roof Dead Load R-DL = 6.73 psf REDUCED ROOF LIVE LOAD��WXPRESSIION VALUE Roof Live Load Lo 20.00 psf Member Tributary Area At < 200 sf Roof 8&9 Pitch 1/12 or 3° Trubutary Area Reduction Rl 1.00 Slope Roof Reduction Rz 1.00 Reduced Roof Live Load Lr = Lo (Rj (1112) = 20.00 psf SNOW LOAD VALUE Ground Snow Load pg = 0.00 Effective Roof Slope 3° Snow Importance Factor IS = 1.00 Snow Exposure Factor Ce = 1.00 Snow Thermal Factor Ct = 1.10 Minimum Flat Roof Snow Load pf-min = 0.00 Flat Roof Snow Load pf = 0.00 psf Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com 7/8 BARUN CORP IEBC 5% •ACT CHECK F- Roof 8&9 ROBIN DEBIE RESIDENCE, 6601 KENWOOD ROAD, FORT PIERCE, FL 34951 WITH I Roof Dead Load (DL) = EXISTING 6.73 PV PANEL 9.73 Roof Live Load (Lr) = 20.00 0.00 Roof Snow Load (SL) = 0.00 0.00 (DL + Lr)/Cd = 21.38 10.81 (DL + SL)/Cd = 5.85 8.46 Maximum Gravity Load = 21.38 10.81 Load Increase (%) _-49.45% OK IEBC Provision : 2018 psf psf psf psf psf psf The requirements of section 806.2 of 2018 IEBC are met and the structure is permitted to remain unaltered. Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com ILULlaig • Ultimate Wind Speed (mph) = 160 Roof Pitch (deg.) = 3° Risk Category = II Roof Type = Flat Exposure Category = C I<d = 0.85 Mean Roof Height (ft) = 20 Kzt = 1 Solar Array Dead Load (psf) = 3.00 Kz = 0.90 DESIGN • Wind Velocity Press. (qh) = 0.00256*Kz*Kzt*Kd*Ke*VZ = 50.24 psf a (ft) = 3.00 Array Edge Factor (yE) = 1.50 Solar Array Pressure Eq. Factor (ya) = 0.60 Allowable Load = 982.50 Ibs S. Pine, 2.5" lag embedment Max. X - Spacing (ft) (Zone 1') 6.00 Effective Wind Area (ft2) 10.20 Max. Y - Spacing (ft) (Zone V) 1.70 Max. X - Spacing (ft) (Zone 1 & 2) 6.00 Effective Wind Area (ft2) 10.20 Max. Y - Spacing (ft) (Zone 1 & 2) 1.70 Max. X - Spacing (ft) (Zone 3) 6.00 Effective Wind Area (ft2) 10.20 Max. Y - Spacing (ft) (Zone 3) 1.70 ROOFZONE GCp (-) UPLIFT 1' -0.90 UPLIFT PRESSURE (psf) PULLOUTFORCE -22.62 230.72 1 & 2 -2.30 -60.50 617.06 3 -3.19 -84.76 864.53 * Wind calculation is based on ASCE 7-16, 29.4 - C&C, LC#7: 0.6D + 0.6W used. -40 is •3.6 -3A -31 -3.0 -2.8 -2.b •2.4 2.2 -2.0 EH •s.a -i.6 -1.4 . -16 -0,-�.a 6 14 w 0 +0.2 +OA +0_6 +U.8 +10 10 100 11111111110 11111111110 1 ©o 0 1 10 20 50 1DO 200 50010DO [Ofl tag) (19) (46) (93) (18.6) (46.5)(929) Effective Wind Atea, ft 2(m') 3 c r O UP I Q l l o I I I I I I 0.6h 0.6h1 3 L J 3 D PLAN FIGURE 30.3-2A Components and Cladding [h < 60 ft (h < 18.3 m)]: External Pressure Coefficients, (GC„), for Enclosed and Partially Enclosed Buildings -Gable Roofs, 9 < 7° Barun Corp I Design and Engineering 1610.202.4506 1 chrisk@barun-corp.com I www.barun-corp.com INSTALLATION NOTES: 1. CUT (N) BLOCKING TO FIT TIGHT BETWEEN (E) TRUSSES AND KEEP FLUSH TO ROOF SHEATHING. ENSURE THERE ARE NO GAPS BETWEEN MEMBERS. 2. INSTALL (N) BLOCKING WITH TWO (N) A34 CLIPS, ONE AT EACH END OF (N) BLOCKING. 3. NAIL (N) A34 CLIPS TO (E) TRUSSES WITH (8) (N) 8D (0.131') X 1.5" NAILS, FILLING ALL HOLES. ENSURE ALL NAILS ARE LOCATED AWAY FROM EDGE OF MEMBERS TO AVOID SPLITTING WOOD. • INSTALL (N) BLOCKING ONLY BELOW STANDOFF LOCATIONS. �I NEW BLOCKING SIDE VIEW (N) STANDOFF SHALL LAC DIRECTLY INTO (N) BLOCKINC (N) 2x4 DF#2 OR 5PF#2 BLOCKING (E) JACK TRUSS OK KAFTf (BLOCKING NOT REQUIRED DOWN HEF (N) 5IMP50N A34 CLIPS (2 PER BLOCK) N1 (8) (N) 8d (O. 13 1 ") X 1- 1 /2" NAILS PER CLIP (E) SHORTEST BOX TRUSS (BLOCKIN REQUIRED FOR ALL LOCATIONS WHEF LAGGING OCCUR: SCHEMATIC DEPICTION OF MP THAT REQUIRES UPGRADES NTS i2'� D I NEW BLOCKING SIDE VIEW 155 NG PREMISE OWNER: JOB NUMBER: UCSGKII'I IUN: CONFIDENTIAL -THE INFORMATION HEREIN SHEET NUMBER: BARON CORP BLOCKING UPGRADE EENf1TOf:ANTAINED ONEEXLL NOT BEUSEDFOCTHE BENEFIT OF ANYONE EXCEPT BARON CORP, DESIGNED BY: MOUNTING SYSTEM: NOR SHALL IT BE DISCLOSED IN WHOLE OR IN PART TO OTHERS OUTSIDE THE SU O E02 N Atwater Dr. CHECKED BY: PAGE NAME: RECIPIENT'S ORGANIZATION, EXCEPT IN Malvern, PA 1 9355 APPROVED BY MODULES: CONNECTION WITH THE SALE AND USE OF Phone: (6 10) 202-4506 STRUCTURAL UPGRADES THE RESPECTIVE BARON CORD EQUIPMENT, WITHOUT THE WRITTEN web51tC: www.barun-corp.com INVERTER: PERMISSION OF BARUN CORP. 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