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HomeMy WebLinkAboutEngineering WEX) 29' RE-CS1 24' ROOT ENGINEERING CALCUf_ATt03VSER17CE,INC. FLIDERT OFAUTH.#31333 don@re-csi.net ROOF WIND PRESSURE & ATTACHMENT DESIGN Page 1 of 2 DATE: 02/22/2017 CLIENT: G &G ROOFING RE-CSI#: 17-034-A-3 PROJECT NAME: TREASURE COVE DUNES CONDOMINIUMS PROJECT ADDRESS: EXPOSURE D 4100 NORTH HIGHWAY AlA BUILDING#3 z min = 7 ft. FORT PIERCE, FL. 33160 PRESSURE COEFFICIENT PROJECT DATA: 2 SLOPE: 0< 7deg FLAT VELOCITY PRESSURE z 115 MEAN HEIGHT.z:= 50 ft qz:= 0.00256.Kz.Kzt.Kd.V2 Kz:= 2.01-(7-00) BUILDING WIDTH: X= 82 ft ENCLOSURE CLASS: ENCLOSED qz=79.878 PSF Kz= 1.27 RISK CATEGORY- 11 PARAPET CONTINUOUS . 3 ft.? YES 47" COMED FASTENERS OR ATTACHMEWS REGION: ATLANTIC SHORELINE DESIGN WIND SPEED: AV:= 170 MPH DESIGN VELOCITY PRESSURE ARE THE MPONSIBIM%THE V EXPOSURE: D MWOR(MM TOPO. FACTOR: H/ Lh < 0.05 Dqz:= 0.6.qz USE Kzt:= 1.0 DIRECTIONAL FACTOR: Kd:= 0.85 Dqz=47.927 PSF COMPONENTS&CLADDING EXTERNAL COEFFICIENT GCp DESIGN CRITERIA: INTERNAL COEFFICIENT:GCpi From Figure 30.4-2A 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 Pl := Dqz.[(-1.0) + (-0)] Basic Combinations Sec 2.4 EDGE P2:= Dqz-[(-1.8) + (-0)] (Sec.2.4.1), is Wind Uplift, 0.6W CORNER P3 := Dqz.[(-1.8) + (-0)] Load Combination#7: 0.6W+0.6D Neglect Deadload-.Use 0.6W (PARAPET CONTINUOUS>3 F7;P2=P3) ASCE-7-10 DESIGN PRESSURES: EDGE ZONE MULTIPLIER: P I =-47.927 Psf Trial Calculations: P2=-86.268 psf z-0.40=20 P3 =-86.268 Sv Lf 'A.Avl; - SION W-6.10=8.2 . umv COLT..'a"',Bug-PIN.GDP" Use Multiplier a:= 8.2 ft R-FVI LLkNCE -EWED FOR )IDATE, PLANS AND p]ERMT MUST BE KEPT NJOrl PROJECT DATA based on information provided by Ment. OK NO INSPLCTION WZL T"'E f HOWE0.) •//�1�1� ■//ACT • . • • I 24 � 1 ROOF ENGIa(EERTNG C-ALCUL VONSER."WCE INC. FL.CERT.OFAUTH.#31333 don@re-csi.net ROOF WIND PRESSURE & ATTACHMENT DESIGN Page 2 of 2 DATE: 02/22/2017 SYSTEM TYPE: BONDED INSULATION, BONDED ROOF COVER RE-CSI#: 17-034 A-3 ROOF SYSTEM ENGINEERING DATA: MfgRype: 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=1.67ga1/SQ per approval DESIGN PRESSURE: DP:= —75 PSF CONSTRUCTION TYPE RECOVER DESIGN CRITERIA: CHECK: DP>P DP=—75 > P1 =—47.9 psf DP=—75 < P2=—86.3 psf REDUCE ADHESIVE RIBBON SPACING TO 6"O.C. DP=—75 < P3 =—86.3 psf REDUCE ADHESIVE RIBBON SPACING TO 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 FOAMADHESIVE(OSFA) APPLY THE ADHESIVE AS NOTED: 3/4"WIDE RIBBONS FIELD: SPACE RIBBONS @ 12"O.C. PERIMETER: SPACE RIBBONS @ 6"O.C. CORNER: SPACE RIBBONS @ 6"O.C. 2) ADHERE TPO MEMBRANE USING JM MEMBRANE ADHESIVE WB. DIMENSION OF EDGE ZONES: �t�aC' ADHERE ALL ZONES TO RIBBON SPACINGS LISTED o v The Roof Code Provisions in FBC Chapter 15 APP Y I TOi This Work. v�-