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HomeMy WebLinkAboutroof wind pressure concrete deck engineerREfj CODI DUNON'S HOOF CONSDl11HG. LLC FL. CerL of Auth. 932207 Florida's Leading Roof Consulting Source fi�arn� R. ❑..�o.. v;—.1 r—A;e,.., cA........ n.,.a A.... M.------- I ROOF -WIND PRESSURE & ATTACHMENT DESIGN CLIENT: ADVANCED ROOFING, INC. PROJECT NAME: ISLANDIA PROJECT ADDRESS: 9550 SOUTH OCEAN DRIVE JENSEN BEACH, FLORIDA 34957 PROJECT DATA: SLOPE: 0 < 7 deg FLAT MEAN HEIGHT: z:= 197 ft WIDTH: We:=60 ft. �k.=9ft. We:=20ft. ENCLOSURE CLASS: ENCLOSED RISK CATEGORY: 11 PARAPET CONTINUOUS . 3 ft.? NO REGION: CENTRAL FLORIDA DESIGN WIND SPEED: V:= 163 MPH EXPOSURE: D TOPO. FACTOR: H / Lh < 0.05 USE Kzt:= 1.0 DIRECTIONAL FACTOR: Kd:= 0.85 DESIGN CRITERIA: FLORIDA BUILDING CODE 2017 Wind Design perASCE 7-10 Analytical Procedure DESIGN SCOPE: ROOF CLADDING ATTACHMENT Basic Combinations Sec 2.4 (Sec.2.4.1), is Wind Uplift, 0.6W Load Combination #7: 0.6W+0.6D Neglect Deadload - Use 0.6W Install DERBIGUM Roof System. EDGE ZONE MULTIPLIER: Trial Calculations: (3'min. ) z•0.40 = 78.8 Wa•0.10 = 6 Wb•0.10 = 0.9 Wc•0.10 = 2 Use Multiplier a:= 6 FT be:= 3 ft. 2a = 12 FT 2bc = 6 ft. PROJECT DATA based on information provided by Gient. #1 CONCRETE DECK: jROOFAREAS j A: MAIN -ROOF ] B & C PENTHOUSES qz:= -ep-[!515� NED FOR 1ECOUNTY OCC . Page 1 of 2 DATE: 02/03/2020 RE-CSI#: 20-023 A-B-C EXPOSURE D Imin =7ft. I RESS+IURE COEFFICIENT 2 11.5 Kz:= .01• z 700 Kz = 1.612 qz = 93.211 PS Dqz:= 0.&qz DI 0.6 Dqz = 55.927 PSF COMPONENTS & CLADDING: EXTERNAL COEFFICIENT: GCp From Figure 30.6-1 INTERNAL COEFFICIENT: GCpi Concrete Deck: GCpi = 0 CALCULATE UPLIFT PRESSURES: (per ASCE 740) P := Dqz•[(—GCp) + (GCpi)] FIELD Pl := D•qz•[(-1.4) + (-0)]=-78.297 PERIMETER P2:= D•qz•[(-2.3) + (-0)]—128.631 CORNER P3 := D•qz•[(-3.2) + (-0)] 17 —178.966 PL=a78.297_ s�f 1?3 L78.966_pst P2�128.631�psf ILl A'Q� AjgL p v 0 CODE! ST. LU FL. Cert. of Auth. #32207 Florida's Leading Roof Consulting Source ROOF WIND PRESSURE & ATTACHMENT DESIGN CONCRETE DECK: ROOF AREAS A: MAIN ROOF B & C: PENTHOUSES SYSTEM TYPE: BONDED INSULATION, BONDED ROOF COVER. ROOF SYSTEW ENGINEERING DATA: Mfgrrype: DERBIGUM U.S. Florida Product Approva@1:17116-R6: Page 8-C-A39 DESIGN PRESSURE: DP := -300 psf DECK MATERIAL: STRUCTURAL CONCRETE -INSULATED VAPOR BARRIER I: 1 PLY OF DERBICOLOR P: TORCHED TO PRIMED CONCRETE DECK BASE INSULATION: 1.5".ACFOAM II INSULATION ADHESIVE: OLYBOND 500• MID -INSULATION: ADHERE 1/8" TAPERED POLYISO IN OLYBOND 500• ADHERE 1/4"TAPERED CRICKETS IN OLYBOND 500' TOP INSULATION: 1/4" min DENS DECK PRIME INSULATION ADHESIVE: OLYBOND 500• BASE PLY. DERBIGUM GP TORCHED CAP PLY. DERBICOLOR GP FIR CR TORCHED CONSTRUCTION TYPE: REROOF ' ConOnuous 112" to 314" ribbons, 12.0" o.c. Field & 6.0" o.c. Perimeters DESIGN CRITERIA: DP = -300 > Pl = -78.3 psf MDP = -180 > P2 = -128.6 psf P3 = -179 psf ADHERE SYSTEM ONTO STRUCTURAL CONCRETE DECK AS FOLLOWS: ALL ROOF ZONES: 1) TORCH 1 PLY VAPOR BARRIER TO PRIMED CONCRETE DECK 2) ADHERE 1.5" BASE POLYISO INSULATION &TAPERED POLYISO,FOLLOWED WITH' & 114" DENS DECK PRIME INSULATION LAYERS ONTO DECK ALL USING OLYBOND ADHESIVE ON BOTH LAYERS. USE THE SPECIFIED RATES LISTED ABOVE. 2) TORCH THE BASE PLYAND CAP,PLY ONTO INSULATION. DIMENSION OF EDGE ZONES: ADHERE ALL ROOF ZONES TO HIGHEST PRESSURE r The Roof Code Provisions in Florida Bulding Code 2017 Apply To This Work. VED FOR INIPLIANCE E COUNTY Page 2 of 2 DATE: 02/03/2020 RE-CSI#: 20-023-A-B-C -180) PERED CRICKETS 10 INSULATION