HomeMy WebLinkAboutWIND PRESSURE CALCULATIONSCONTRACTOR INFORMATION
Holland Roofing
FL
BUILDING SPECIFICATIONS'
WIND PRESSURE CALCULATION PROJECT AREA:
Main
DIMENSIONS (ft):
60'x 48
HEIGHT (ft):
12
MIN. PARAPET HEIGHT (in): 0-24
DESIGN CONDITIONS
WIND SPEED (rnph);
159
ENCLOSURE CLASS.:
Enclosed Building
EXPOSURE CATEGORY:
Exposure C
RISK CATEGORY:
Risk Category II
ELEVATION (ft):
N/A
VELOCITY PRESSURE (q r, = 0:0(
VELOCITY PRESSURE`COE
TOPOGRAPHIC FACTOR"
1
GROUND ELEVATION$ FACI
WIND DIRECTIONALIT 'FA
WIND SPEED (V`): I
IMPORTANCE FACTOR (1):
VELOCITY PRESSURE (Q:
ASCE 7-1 PROJECTM 166331 DATE: 5/18/2021
PROJECT INFORMATION
PROJECT:
7-,Eleven "
ADDRESS:
314.0'''Oleander Blvd'
'CITY, STATE ZIP:
-Ft. Pierce=FL 34982
AREA: f,
"Main
BUILDING'USE
inmercial
a ASCE,.
1
v2)%`-
° 1.00
1.00
(Kd): 0.85
25281.00.
N/A
46.70
DESIGN WIND PRESSURE _COEFFICIENTS
ROOF ZONES
INTERNAL PRESSURE COEFFICIENT (Gcpj): 0.18
Zone 1'
Zone 1
Zone 2
EXTERNAL PRESSURE COEFFICIENT (GCP):
-0.90
-1.70
-2.30
ROOF ZONES (psf)
DESIGN WIND PRESSURE (p=q(GCp)-q;(GCP,)(ps0)
Zone 1'
Zone 1
Zone 2
ULTIMATE DESIGN UPLIFT PRESSURES:
-50.43
-87.79
-115.81
NOMINAL (ASD) DESIGN UPLIFT PRESSURES (0.6 • p):
-30.26
-52.68
-69.49
SAFETY DESIGN PRESSURES (FACTOR OF 2):
60.52
105.35
138.97
Assembly
ASSEMBLY SUMMARY
Duro-Last 50 mil Membrane, Mechanically Fastened,.with #IS DL Fasteners and Cleat Plates, over
ISO 11, 4' x 8' boards, with an R-30 min., Mechanically Fastened, with #15 DL Fasteners and 3" Metal Plates, over
Steel Deck
Zone 1%
NOTES: Fastener pull-out value estimated. Testing required.
Single wind tab required. Zone 1'
MEMBRANE TAB SPACING: 60" Tabs
AVG PULL-OUT MEMBRANE FASTENER SPACING: 6" o.c.
RESISTANCE: 1
450 Ibf INSULATION/CB FASTENER COUNT: 5 per 4' x 81
Zone 3
-3.20
Zone 3
-157.84
-94.70
189.41
Re -Cover
MDP ReportID Assembly# Limitation
-60 FL1559-1114 R-81
ROOF ZONES
Zone 1 Zone 2 Zone 3
60" Tabs 28" Tabs 28" Tabs
6" o.c. 9" O.C. 6" o.c.
5per 4'x8' 5per 4'x8' 5per 4'x8'
1 If estimated, verify and sign for these calcs to be permitted.
2 These calculations have been done in accordance with ASCE 7 (05, 10 or 16) standards. However, these calculations do not take
precedence over local building codes. All calculations on this report are based on information provided by the contractor. Calculations
cannot be relied upon should any of the provided information prove to be inaccurate. Performed by Ryann Kruse
v •' /�� y� Page 1 of 3
�! 1>��i�� LA� / ea Based on Chapter 30 (Sections 1 & 3) of the American Society of Civil Engineers (ASCE) Standard
.a T to [ W O R L D'S a E S T R O O FL ASCE 7-16, Minimum Design Loads and Associated Criteria for Buildings and other Structures.
PROJECTM 166331
See ASCE 7-16: Scenario 1 ROOF ZONE CONFIGURATION DATE: 5/18/2021
Zone 3
r----
I
1
i
Zone 2
-------------------------------
I 1
Zone 1
1 1
I i
1 r--------------- i i
j 1 I j
I
I
t � �
1
I i 1
I 1 I
Zone 3
i o
1 N
I
L
2.400
b,
Zone 1'
t I 1 1
I L--------------J I
1 I
I I
I�
....... L-----------------------------j r
I � I
I See Note I
Below ; I
i
�-----
Zone 3 1 r Zone 3
Note: Corners may be squared off for ease of Installation.
DIMENSIONS VARIABLES
L x W (ft) = 60 x 48 a = 0.2 * Height
Height (ft) = 12 b = 0.6 *Height
Performed by Rvann Kruse
VR`LeA� Drawing is not to scale. Used as an example to provide dimensionsfior reference:
THE WORLD'S BEST ROOFs
PROJECT M 166331
See ASCE 7-16: Scenario 1 ENHANCEMENT CALCULATIONS DATE: 5/18/2021
TESTED ASSEMBLY INFORMATION
ZONE 1'
-60
MDP Report ID Assembly # Limitation
FL155 -R14: R= 1
Zones 1, 2, and 3 are being prescriptively enhanced.
RAS 137-20 - MEMBRANE ATTACHMENT CALCULATIONS
Variables SF per Fastener (x)
Fastener Spacing (in): fs fs = 9.00 r • fs
Row Spacing (in): r r — 6o x 144 2.50�
Tributary Area of Fastener: x
Max Design Pressure (MDP): MDP "Fastener Value" or Force per Fastener
Fastener Value:' fv MDP = -60.00 f„ _ —MDP • x = 150.00
Nominal Zone Design Pressure: P
ZONE 1 ENHANCEMENT
RS1 — 60
fv• 144
MAX FASTENER SPACING
ROUNDED DOWN FASTENER SPACING (3" Incr.)
P1 = -52.68
_
—P1 1 - R$
6.83
ZONE 2 ENHANCEMENT
R$ 2 = 28
fv 144
MAX FASTENER SPACING
ROUNDED DOWN FASTENER SPACING (3" Incr.)
PZ = -69.49
=
—Pz • RSZ
11.10
ZONE 3 ENHANCEMENT
RS3: = 28
fv 1.44
MAX FASTENER SPACING
ROUNDED DOWN FASTENER SPACING (3" Incr.)
P3 = -94.70
—
—P3-• RS3
8.15
,� ` •
RAS 117-20 - INSULATION ATTACHMENT CALCULATIONS ` W
t
Variables Prduct Approval�for Field of Roof
.
Known Number of Fasteners: kf
Max Design Pressure (MDP): MDP - i%IDP #—• 60.00
Nominal Zone Design Pressure:
ZONE 1 ENHANCEMENT yCALCULA'TE;FOR FASTENERS PER 4' X'8'
P 5 (_ \ � ~k , MIN FASTENERS
ROUNDED UP FASTENER'SPACING
_
P1= N/A
N/A
ZONE 2 ENHANCEMENT =CALCULATE FOR FASTENERS PER 4' X 8'
(Nearest Integer)
- MIN FASTENERS
P2__= -69.49 kf
ROUNDED UP FASTENER SPACING
_
MDP Pa NIA —
N/A J
(Nearest Integer)
ZONE 3 ENHANCEMENT- CALCULATE FOR FASTENERS PER 4'X 8'
MIN FASTENERS
P3 = -94.70 k f
MDP • P3 = N/A - =
ROUNDED UP FASTENER SPACING
-- - —
N/A
(Nearest, Integer)
/ �/�
Performed by Ryann Kruse
A� —
�JMU4WC7j`LAS i . Page 3 of 3
i A THE WORLD'S BEST RC7OFo