HomeMy WebLinkAboutEngineeringMETRO DADE COUNTY T „s-01KALM ���� FLORIDA CERTIFICATE of
NOA#� 20-0408.01 AUTHORrzaTION # 29.976
SLTRP.4S.V1? G FZPECTATIUNS
R00F WIND PRESSURE & .ATTAC;HMENT DESIGN
CLIENT: INFINITY ROOFING, INC.
PROJECT NAME: FPL-PRIMAVISTA-SUB-STA-nON
PROJECT ADDRE55:
6375 S. US HIGHWAY 1
PORT ST. LUCIE, FLORIDA34952
PROJECT DATA:
SLOPE: 0 < 7 deg FLAT
MEAN HEIGHT z := 15 ft
WIDTH: W := 25 ft.
ENCLOSURE CLASS: ENCLOSED
RISK CATEGORY: III
PARAPET CONTINUOUS: > 3 ft_ (NO)
REGION: WIND BORNE DEBRIS REGION
DESIGN WIND SPEED: V := 175 MPH
EXPOSURE: C
TOPO. FACTOR: H f Lh < 0.05
USE Kzt := 1.0
DIRECTIONAL FACTOR: Kd := 0.85
DESIGN CRITERIA:
Wind Design perASCE 7-10
Analytical Procedure
FBC-2017
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
Negleect Deadload - Use 0.6W
EDGE ZONE MULTIPLIER:
Trial Calculations:
z•0.40 = 6
JW=2.5
Use Multiplier a := 3 ft
PROJECT DATA based on information provided byTRCI.
ADHERED SYSTEM
VELOCITY PRESSURE
qz:= 0.00256Kz-Kzt•Kd-V2
qz = 56.57 PSF
DESIGN VELOCITY PRESSURE
Dqz :- O.&q7
Dqz = 33.942 PSF
COMPONENTS & CLADDING:
EXTERNAL COE FRO ENT GCp
From Figure 30.4-2A
INTERNAL COEFFICIENT: GCpi
From Figure 26.11 -1
Page 1 of 2
DATE: 08128/2020
TRCI#:20-144
EXPOSURE C
zmin =15ft,
PRESSURE COEFFICIENT
2
9.5
Kz:= 2.01� Z
goo)
Kz = 0.849
CALCULATE UPLIFT PRESSURES: (perASCE 7-10) (SF =2)
P := Dqz-[(—(;( .) -+- (GC"pi)]
FIELD P1 := Dqz.[(-1.0) + (-0.18)] _-40.051
EDGE P2 := Dqz.[(-1.8) + (-0.18)] _-67.205
CORNER P3 := Dqz.[(-2.8) + (-0.18)] =-101.147
3260 NW 23" Avenue —Suite 300E —Pompano Beach, FL 33069 —Office 954-978-9330 — Fax 954-978-9339
1ohn0turnkeyroof ccnsuiting.com
METRO DADS COUNTY t�����QO� FLORIDA
NOA# 20-0408.0'1 AUTHORIZATION # 9975
SURPASSIA'G EXPECTATIONS
ROOF WIND PRESSURE & ATTACHMENT DESIGN Page 2 of 2
ADHERED SYSTEM DATE: 48/2812424
SYSTEM TYPE: INSULATION ADHERED TO CONCRETE, MEMBRANE TORCH APPLIED TRCi#:20-144
ROOF SYSTEM ENGINEERING DATA:
Mtrrype: GAF RUBEROID MODIFIED BITUMEN ROOF SYSTEM
Miami Dade County NOA: 1M919.13; SYSTEM TYPE: A(1); Pg. 9 & 10 of 14
DECK TYPE: CONCRETE, INSULATED
BASE INSULATION LAYER; MIN 1,5" ENERGYGUARD POLYISO ADHERED w OLYBOND 500 ADHESIVE *
TOP INSULATION LAYER: MIN 114" DENSDECK PRIME ROOF BOARD —ADHERED w OLY13OND 500ADHESIVE
BASE SHEET: ONE PLY of RUBEROI D HW 25 SMOOTH TORCH APPLIED
MEMBRANE: ONE PLY of RUBEROID HW PLUS GRANULE FR TORCHAPPLIED
ADHESIVE: OLYBOND 500 PER BELOW SPACINGS
DESIGN PRESSURE: DP := -300 PSF
CONSTRUCTION TYPE RE -ROOF
'AjVy Base and Tots Layers of hsufation to Concrete Substrate Usina Oivbond 500 Adhesive
applied in 3I4" to I " Wide Ribbons Spaced at 121" o c per GAF NOA Requirements
DESIGN CRITERIA; DP = -300 > P 1 -40,1 psf
112 = -67.2 psf
P3 = -101.1 psf
ADHERE SYSTEM ONTO CONCRETE DECKAS FOLLOWS:
ALL ROOFZONES:
1) ADHERE BASE INSULATION LAYER TO CONCRETE USING OLYBOND 500 AT ABOVE-11STED SPACINGS.
2) ADHERE TOP INSULATION LAYER TO CONCRETE USING OLYBOND 500 AT ABOVE -LISTED SPACINGS.
3) TORCH APPLY BASE AND MEMBRANE PLIES PER NOA REQUIREMENTS.
DIMENSION OF EDGE ZONES:
DP > P-3
ADHEREALL ZONES PER NOA REQUIREMENTS.
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