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Home My WebLink AboutROOF WIND PRESSURE AND ATTACHMENT DESIGNa RECEIVED �I • �� CCONSUVING, LLC NOV o g 2018 LC f ST. Lucie_Cdunt�, Permitting FL Ceti of Au& #32W SCANNED Florida's Leading Roof Consulting Source BY fi Specification & Desi • Visual Condition SgnLe - Roof Asset Mana ent Pro i Assurance I fi � n i ROOF WIND PRESSURE & ATTACHMENT DESIGN CLIEN VILLANOPage 1 of 2 VA CONSTRUCTION COMPANY DATE: 1 of 2/2018 PROJE_ TNAME: GLADYS FOXX RESIDENCE RE-CSI#: 18-242-ib-sbs 403 NOtTH 40th STREET FORT Ij,JERCE, FLORIDA 33497 PROJECT DATA: SLOPE`. 0 < 7 deg FLAT MEAN k EIGHT. z := 15 ft WIDTH: X= 45 ENCLO§URE CLASS: ENCLOSED RISK C t:ICTOR* TEGORY: II PARAP CONTINUOUS. 3 ft.? N/A REGIOOPEN TERRAIN DESIGIND SPEED: L:= 170 MPH EXPOSE:C TOPO. H / Lh < 0.05 SE Kzt:= 1.0 DIRET ONAL FACTOR: Kd := 0.85 DESIGNIi CRITERIA: FLORID f, BUILDING CODE 2017 Wind D sign perASCE 7-10 Analyt ,al Procedure I DESIG SCOPE: ROOF LADDING ATTACHMENT Basic C' binations Sec 2.4 (Sec.2.4, 1), is Wind Uplift, 0.6W Load Co'�Ileadload bination #7: 0.6W+0.6D Neglect -,Use 0.6W Trial Ca Iculations: z-0.4 0 = 6 0.1W L 4.5 Use IV Itiplier a = 8 ft PROJECT , ATA based on information' rovided by Client. WOOD DECK VELOCITY PRESSURE qz:= 0.00256•Kz•Kzt•Kd•V2 qz = 53.383 PSF EXPOSURE C zmin= 15ft. PRESSURE COEFFICIENT DESIGN VELOCITY PRESSURE Dqz := 0.6•gz Dqz = 32.03 PSF COMPONENTS & CLADDING: EXTERNAL COEFFICIENT: GCp From Figure 30.4-2A INTERNAL COEFFICIENT: GCpi From Figure 26.11 -1 2 r 9.5 Kz := 2.01.I 9UU ) Kz = 0.849 t CALCULATE UPLIFT PRESSURES: (perASCE 740 ) P := Dqz'[(—cCp) + (GCpi)] FIELD Pl := Dqz•[(-1.0) + (-0.18)] =—37.795 EDGE P2 := Dqz-[(-1.8) + (-0.18)] =—63.419 CORNER P3 := Dqz•[(-2.8) + (-0.18)] =—95.449 d COO& FL Cert. of AutlL #32207 Florida's Leading Roof Consulting Source Specification &Design • Visual Condition Surveys Roof Asset Management Programs • Quality Assurance Inspections ROOF WIND PRESSURE & ATTACHMENT DESIGN Page 2of2 SBS PLIES SELF ADHERED DATE: 10/22/2018 OVER FASTENED INSULATION. RE-CSI#: 18-242-ib-sbs MfglTy p : POLYGLASS CORP. Florida F roduct ApprovaW: 1654-R22 Page 13, Table 1 D, Type C, System No. W-55 DECK MATERIAL: 5/8" TONGUE & GROOVED WOOD PLANKING INSU ION: 1.5" HUNTER H-SHIELD POLYISO BOARD IZE AREA: A := 32 SQ.FT. AW FASTS R: HD (#14) FASTENERS & INSULATION PLATES NUMBED of FASTENERS: NF := 24 # / Board (1 Fastener/1.33 sq.ft.) BASE I��.Y: ONE OR MORE PLIES OF ELASTOFLEX SAV BASE CAP PL : ELASTOFLEX SAP, SELFADHERED DESIG PRESSURE: DP := —82.5 PSF CONST 1,UCTION TYPE: REROOF DESIGN FORMULA DerRAS Noll 7: TRIAL CALCULATIONS: P1- FIELD P1 =—37.795 REQUII ED # of FASTENERS PER BOARD 132- PERIMETER (NFP2) = 18.449 _ NF•P DP RNF. DP P3- CORNER (NFP3) = DP 27.767 I WOOD DECK FASTENER DESIGN VALUE: DP•A '— NF fv = -110 LB DP = -82.5 DP > P1 FIELD: (Zone I): ATTACH INSULATION TO DECK USING 24 FASTENERS PER 4' x 8' BOARD PERIME ER ( Zone 2 ): i ATTACH INSULATION TO DECK USING 24 FASTENERS PER 4' x 8' BOARD CORNE ( Zone 3 ): ATTACH INSULATION TO DECK USING 28 FASTENERS PER 4' x 8' BOARD WIDT�Ii at PERIMETER 8 ft. 2 Board Widths LENQITH of CORNER: 8 ft. The Roof Code Provisions in Florida Bulding Code 2017 ApplyT�, This Work.