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Home My WebLink AboutROOF WIND PRESSURE & ATTACHMENT DESIGNa 1\ RE-CSI ROO'F ENGIaIEERi CALCUL.ri` MSERWCE• INC FL.CERT. OFAUTH.# 31333 don@recsi.net ROOF WIND PRESSURE & ATTACEE IENT DESIGN 6I:HNNED BY )t. Lucie Countv Page 1 of 2 DATE: 02/22/2017 CLIENT: G & G ROOFING RE-CSI#: 17-034-A-1 PROJECT NAME: TREASURE COVE DUNES CONDOMINIUMS EXPOSURE D PROJECT ADDRESS: 4100 NORTH HIGHWAY A1A BUILDING 1 z min = 7 ft. FORT PIERCE, FL. 33160 PRESSURE COEFFICIENT PROJECT DATA: 2 SLOPE: B < 7 deg FLAT VELOCITY PRESSURE (z 11.5 MEAN HEIGHT: z: 33 ft 0.00256•Kz•Kzt•Kd•V2 Kz:= 2.01'I 00) BUILDING WIDTH: �= 80 ft qz:= ENCLOSURE CLASS: ENCLOSED PSF Kz= 1.182 RISK CATEGORY: II qz = 74.309 PARAPET CONTINUOUS. 3 ft.? YES 4T' ATLANTIC SHORELINE ACEAIED FASTENERS OR ATTACHME NTS REGION: DESIGN WIND SPEED:'L 170 MPH DESIGN VELOCITY PRESSURE D ARE TNEMPONSIMMYOFTHE EXPOSURE: D TOPO. FACTOR: H / Lh < 0.05 Dqz := 0.6•gz CMMCTOR OF RECORD USE Kzt 1.0 DIRECTIONAL FACTOR: Kd:=0.85 Dqz=44.586 PSF COMPONENTS &CLADDING EXTERNAL COEFFICIENT: GCp From Figure 30A-2A DESIGN CRITERIA: INTERNAL COEFFICIENT: GCpi FLORIDA BUILDING CODE 2014 Concrete Deck: GCpi = 0 Wind Design perASCE 7-10 Analytical Procedure CALCULATE UPLIFT DESIGN PRESSURES: DESIGN SCOPE: P:= qz•[(-GCp) + (GCpi)] ROOF CLADDING ATTACHMENT FIELD PI := Dqz•[(-1.0) + (-0)] Basic Combinations Sec 2.4 (Sec.2.4.1), is Wind Uplift, 0.6W EDGE P2 Dqz•[(-1.8) + (-0)] Load Combination #7: 0.6W+0.6D CORNER P3 := Dqz•[(-1.8) + (-0)] Neglect Deadload - Use 0.6W (PARAPET CONTINUOUS > 3 Fr, P2 = P3) ASCE-7-10 DESIGN PRESSURES: EDGE ZONE MULTIPLIER: PI=-44.586 psf Trial Calculations: P2=-80.254 psf z•0.40 = 13.2 P3 =-80.254 psf l I,(n, � ®`�cj O W 0.10 = 8 ST. LUC - COUNTV RUILDNG DIVLSION Use Multiplier a:= 8 ft "WIME6 MR PLLINCE REl'llti�'49 DATE PROJECT DATA based on information provided by Client. PLAINS AND PERMIT MUST BE KEPT ON JOB OR NO LNSPECTION WILL BE MADE. t ~ RE-CSI ' R.007'E.NGINEEIi -Wi7C?{LC'ULA970NSE2ZWCE.INC. FLCERT. OFAUTH.# 31333 don@recsi.net ROOF WIND PRESSURE & ATTACHMENT DESIGN Page 2 of 2 BUILDING 1 SYSTEM TYPE: BONDED INSULATION, BONDED ROOF COVER DATE: 02/22/2017 RE-CSI#: 17-034 A-1 ROOF SYSTEM ENGINEERING DATA: MfgIType: JOHNS MANVILLE CORP.. Florida Product Approval#:11475 Page 20 System Type: A Table 6A System No. R-6. DECK MATERIAL: STRUCTURAL CONCRETE -INSULATED INSULATION: 1/4" INVINSA BOARD OVER IN -PLACE INSULATION INSULATION ADHESIVE: JM ONE STEP FOAM ADHESIVE (OSFA) 3/4" RIBBONS @ 12" O.C. MEMBRANE: JM 80-mil TPO ADHERED USING JM MEMBRANE ADHESIVE WB: RATE=1.67gal/SQ per approval DESIGN PRESSURE: DP := -75 PSF CONSTRUCTION TYPE RECOVER DESIGN CRITERIA: CHECK: DP > P DP = -75 > PI = -44.6 psf DP = -75 < P2 = -80.3 psf REDUCEADHESNE RIBBON SPACING TO 6" O.C. DP = -75 < P3 = -80.3 psf REDUCE ADHESIVE RIBBON SPACING 70 6" O.C. BOND ROOF SYSTEM OVER EXISTING CONCRETE DECK AS FOLLOWS: ALL ZONES: (Zones 1, 2, 3 ): 1) ADHERE INVINSA BOARD OVER EXISTING INSULATION USING JM ONE STEP FOAM ADHESIVE (OSFA) APPLY THE ADHESIVE AS NOTED: 314" WIDE RIBBONS FIELD: SPACE RIBBONS @ 12" O.C. PERIMETER: SPACE RIBBONS @ 6" O.C. CORNER: SPACE RIBBONS @ 6" O.CO.C. 2) ADHERE TPO MEMBRANE USING JM MEMBRANE ADHESIVE WB @1.67 gal/SO. BOTH SIDES.. DIMENSION OF EDGE ZONES: ADHERE ALL ZONES AS LISTED ABOVE. The Roof Code 3/3/2 2 Provisions e FBC FBA Chapter n (� 15 Apply To G�La_ lr{Vt� This Work.