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HomeMy WebLinkAboutEngineering VIID i_ 24' r ° ROOD•E_%rGi_ (EE2uwG cmcyLATIONSER'WcE.INC. FL.CERT.OFAUTH.#31333 don@re-csi.net ROOF WIND PRESSURE & ATTACHMENT DESIGN Page 1 of 2 DATE: 02/22/2017 CLIENT: G&G ROOFING RE-CS I#: 17-034-A-2 PROJECT NAME: TREASURE COVE DUNES CONDOMINIUMS PROJECT ADDRESS: EXPOSURE D 4100 NORTH HIGHWAY A1A BUILDING 2 z min = 7 ft. FORT PIERCE, FL. 33160 PRESSURE COEFFICIENT PROJECT DATA: 2 SLOPE: 6< 7 deg FLAT VELOCITY PRESSURE (700) z11.5 MEAN HEIGHT:z:= 33 ft 2 Kz 2.01 BUILDING WIDTH: X= 80 ftqz:= 0.00256 Kz Kzt Kd V ENCLOSURE CLASS: ENCLOSED qz=74.309 PSF Kz= 1.182 RISK CATEGORY: II PARAPET CONTINUOUS . 3 ft.? YES 47" REGION: ATLANTIC SHORELINE CONCEALED FASTEN0 OR ATTAMMUflS DESIGN WIND SPEED: V:= 170 MPH DESIGN VELOCITY PRESSURE EXPOSURE: D 9E ME RES PONS 1BILD of n TOPO. FACTOR: H/ Lh < 0.05 Dqz:= 0.6 qz r I a OR a g USE Kzt:= 1.0 DIRECTIONAL FACTOR: Kd:= 0.85 Dqz=44.586 PSF COMPONENTS 8 CLADDING EXTERNAL COEFFICIENT:GCp From Figure 30.4-2A 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 Pl := 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 FT,P2=P3) ASCE-740 DESIGN PRESSURES: EDGE ZONE MULTIPLIER: P1 =—44.586 psf Trial Calculations: P2=—80.254 psf z-0.40= 13.2 P3 =—80.254 psf Use Multiplier a:= 8 ft ST LLTC COLS_ RL n1-1 . TIVISIGN REVLEWED FOR Cy.1PLIU CF, DATE 1 1117 Tq PROJECT DATA based on information provided by Ment. PLANS.AND PERMIT MUST BE KEPT ON JOB OR NO INSPECTION WU.L RE MADE. Ho,Ef~, RE-CS1 18 ROOF EW�ERIWCG Q4.CCULA9T0W SERVICE.INC. FL.CERT.OFAUTH.#31333 don@re-csi.net ROOF WIND PRESSURE & ATTACI VWNT DESIGN Page 2 of 2 BUILDING 2 DATE: 02/22/2017 SYSTEM TYPE: BONDED INSULATION, BONDED ROOF COVER RE-CSI#: 17-034-A-2 ROOF SYSTEM ENGINEERING DATA: Mfgrrype: 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 > P1 =—44.6 psf DP=—75 < P2=—80.3 psf REDUCE ADHESIVE RIBBON SPACING TO 6"O.C. DP=—75 < P3 =—80.3 psf REDUCEADHESNE 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 FOAM ADHESIVE(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 @1.67 gal/SQ.BOTH SIDES.. DIMENSION OF EDGE ZONES: f ADHERE ALL ZONES AS LISTEDABOVE. vQ e n ✓' f -� ,F C7 4 V t , The Roof Code Provisions in ° FBC Chapter Iu=A�� ' a This Work. av�� 3 o Ewa?a � �J�