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Home My WebLink AboutDesign Pressure Eng. LetterFL. Cert. of Auth. #32207 Florida’s Leading Roof Consulting Source Specification & Design • Visual Condition Surveys • Roof Asset Management Programs • Quality Assurance Inspections ROOF WIND PRESSURE & ATTACHMENT DESIGN CLIENT: SUTTER ROOFING INC. PROJECT NAME: TROPICANA FT. PIERCE UTILITIES SHOP PROJECT ADDRESS: 6500 GLADES CUT OFF ROAD FORT. PIERCE, FL. 34981 Page 1 of 2 DATE: 10/20/2020 RE-CSI #20-199-tpo EXPOSURE C z min = 15 ft. CARLISLE TPO PROJECT DATA: HEIGHT: z 20 ft. WIDTH: W 45 ft. Continuous Parapet => 3 FT.: NO ENCLOSURE CLASS.: ENCLOSED BLDG. RISK. CATEGORY: II SHAPE: FLAT REGION: OPEN TERRAIN WIND VELOCITY: V 160 MPH EXPOSURE: C TOPO. FACTOR: H / Lh < 0.05 USE Kzt 1.0 DIRECTIONAL FACTOR: Kd 0.85 PRESSURE COEFFICIENT Kz 2.01 z 900   2 9.5  CALCULATE VELOCITY PRESSURE qz 0.00256 KzKztKdV 2Kz 0.902 qz 50.24PSF Dqz 0.6 qz COMPONENTS & CLADDING EXTERNAL COEFFICIENT: GCp From Figures 30.4-2A INTERNAL COEFFICIENT: GCpi From Figure 26.11 -1 DESIGN CRITERIA: FLORIDA BUILDING CODE EDITION 2017 WIND DESIGN per ASCE 7-10 Method 2: Analytical Procedure CALCULATE UPLIFT DESIGN PRESSURES: P qz GCp()GCpi()[]GCp FIELD P1 Dqz 1.0( ) 0.18()[] EDGE P2 Dqz 1.8( ) 0.18()[] CORNER P3 Dqz 2.8( ) 0.18()[] DESIGN SCOPE: Wind Uplift Loads Preliminary Attached insulation Iinsulation fastened to purlins RhinoBonded TPO: ASCE-7-10 DESIGN PRESSURES: EDGE ZONE MULTIPLIER: Trial Calculations: ( 3' min. ) z 0.408 Use Multiplier a 6 ft P1 35.57psf P2 59.685psf P3 89.829psf PROJECT DATA based on information provided by Client. FL. Cert. of Auth. #32207 Florida’s Leading Roof Consulting Source Specification & Design • Visual Condition Surveys • Roof Asset Management Programs • Quality Assurance Inspections ROOF WIND PRESSURE & ATTACHMENT CALCULATIONS CARLISLE TPO Page 2 of 2 DATE: 10/20/2020 RE-CSI #20-199-tpo METHOD OF ATTACHMENT: PRELIMINARILY ATTACHED INSULATION TPO RHINOBONDED TO INSULATION ATTACHED TO PURLINS ROOF SYSTEM ENGINEERING DATA: Mfg/Type: CARLISLE-SYNTEC CORP. Florida Product Approval# 14083-R24 Page 81, TYPE C-2, System # R-51 DESIGN PRESSURE: DP 67.5 psf DECK MATERIAL: STEEL INSULATION : 1.0" MIN. INSULATION, ONE OR MORE LAYERS, ANY COMBINATION FASTENER: CARLISLE HP PURLIN FASTENERS & RHINOBOND INSULATION PLATES PURLIN SPACING: PS 60 in. FASTENER SPACING: FS 6 in. MEMBRANE: CARLISLE SURE WELD 60-mil TPO: BONDED TO TPO RHINOPLATES WITH RHINOBOND TOOL AS PER MANUFACTURER CONSTRUCTION TYPE: RECOVER P RELIMINARY ATTACHMENTS: 5 #14 FASTENERS PER 4' x 8' BOARD USE STANDARD INSULATION PLATES. ATTACHMENT CALCULATIONS: FASTENERS SPACED 6 " O.C. ALONG PURLINS SPACED 60" O.C (MAX) FASTENER DESIGN VALUE: fv DP PS FS 144   fv 168.75 LB DESIGN FORMULA per RAS NO. 137: TRIAL CALCULATIONS: DP 67.5  P1 35.57 fv 144 P2 PS7 fv 144 P3 PS5 FASTENER SPACING FS fv 144 PRSP MECHANICALLY ATTACH INSULATION TO PURLINS & RHINOBOND TPO TO INSULATION AS FOLLOWS: FIELD: ( Zone 1 ): RHINOBOND MEMBRANE ALONG PURLINS @ 6.0" O.C. MAXIMUM PURLIN SPACING = 60 in. PERIMETER ( Zone 2 ): RHINOBOND MEMBRANE ALONG PURLINS @ 6.0" O.C. MAXIMUM PURLIN SPACING = 60 in. CORNER ( Zone 3 ): RHINOBOND MEMBRANE ALONG PURLINS @ 5 .0" O.C. MAXIMUM PURLIN SPACING = 60 in. DIMENSION OF EDGE ZONES: WIDTH at PERIMETER a 6 ft. CORNER LENGTH: a 6ft. The Roof Code Provisions in Chapter 15 of the Florida Building Code 2017 Apply To This Work.