Job#: 2015-018

WIND (C&C)
Wind Analysis Method Part 1: Low Rise Buildings
Basic Wind Speed (ultimate) 155.00 MPH
Topography Factor Kzt = 1.00 ASCE 7-10 Fig. 26.8-1
Directionality Factor Kd = 0.85 ASCE 7-10 Fig. 26.6-1
Internal Pressure Coefficients (GCpi) = 0.18 -0.18 ASCE 7-10 Table 26.11-1
Roof Pitch 5.00 :12 22.62 DEG
Roof Eve Height 12.500 FT
Peak Roof Height 16.330 FT α= 9.5
Mean Roof Height 14.415 FT zg = 900
Terrain Exp. Category C

Velocity Pressure qz=.00256KzKztKdV2

Height (ft) Kz qz
h= 14.42 FT 0.849 44.38

Wall Components p = qh(GCp - GCpi)

Component Span Length (ft.) Width (ft.) Trib. Area Eff. Area
Stud 11 1.33 14.63 40.33 40.33333333
Panel 8 4 32.00 32.00 21.33333333
A ≤ 10 ft2 - - - 10.00
A = 20 ft2 - - - 20.00
A = 50 ft2 - - - 50.00
A = 100 ft2 - - - 100.00
A = 200 ft2 - - - 200.00
A ≥ 500 ft2 - - - 500.00

Wall Coeficients taken from ASCE 7-10 Fig. 30.4-1

Wall Coefficients
Component Eff. Area Zone 4 Pos Zone 4 Neg Zone 5 Pos Zone 5 Neg
Stud 40.33 0.89 -0.99 0.89 -1.19
Panel 32.00 0.91 -1.01 0.91 -1.22
A ≤ 10 ft2 10.00 1.00 -1.10 1.00 -1.40
A = 20 ft2 20.00 0.95 -1.05 0.95 -1.29
A = 50 ft2 50.00 0.88 -0.98 0.88 -1.15
A = 100 ft2 100.00 0.82 -0.92 0.82 -1.05
A = 200 ft2 200.00 0.77 -0.87 0.77 -0.94
A ≥ 500 ft2 500.00 0.70 -0.80 0.70 -0.80

Wall Design Pressures (psf)

Component Eff. Area Zone 4 Pos Zone 4 Neg Zone 5 Pos Zone 5 Neg
Stud 40.33 47.62 -52.06 47.62 -60.62
Panel 32.00 48.41 -52.85 48.41 -62.20
A ≤ 10 ft2 10.00 52.37 -56.80 52.37 -70.12
A = 20 ft2 20.00 50.01 -54.44 50.01 -65.40
A = 50 ft2 50.00 46.89 -51.33 46.89 -59.16
A = 100 ft2 100.00 44.53 -48.97 44.53 -54.44
A = 200 ft2 200.00 42.17 -46.61 42.17 -49.72
A ≥ 500 ft2 500.00 39.05 -43.49 39.05 -43.49

Note: Pressures are limit state design pressures for strength design. Multiple by 0.6 for ASD.
Min. Pressure: The design wind pressure for C&C shall not be less than 16 psf acting in either direction normal to the surface.

Rev. 1.2.2- 06/29/2015 Copyright ® 2015 - Medeek Engineering Inc.

 Job#: 2015-018
Roof Components p = qh(GCp - GCpi)
Component Span Length (ft.) Width (ft.) Trib. Area Eff. Area
Truss/Rafter 16 2 32.00 85.33 85.33333333
Panel 8 4 32.00 32.00 21.33333333
A ≤ 10 ft2 - - - 10.00
A = 20 ft2 - - - 20.00
A = 50 ft2 - - - 50.00
A ≥ 100 ft2 - - - 100.00

Roof Coeficients taken from ASCE 7-10 Fig. 30.4-2B and Fig. 30.4-2C

Roof Coefficients
Component Eff. Area Zone 1 Pos Zone1 Neg Zone 2 Pos Zone 2 Neg Zone 3 Pos Zone 3 Neg
Truss/Rafter 85.33 0.31 -0.81 0.31 -1.23 0.31 -2.04
Panel 32.00 0.40 -0.85 0.40 -1.45 0.40 -2.30
A ≤ 10 ft2 10.00 0.50 -0.90 0.50 -1.70 0.50 -2.60
A = 20 ft2 20.00 0.44 -0.87 0.44 -1.55 0.44 -2.42
A = 50 ft2 50.00 0.36 -0.83 0.36 -1.35 0.36 -2.18
A ≥ 100 ft2 100.00 0.30 -0.80 0.30 -1.20 0.30 -2.00

Roof Design Pressures (psf)

Component Eff. Area Zone 1 Pos Zone1 Neg Zone 2 Pos Zone 2 Neg Zone 3 Pos Zone 3 Neg
Truss/Rafter 85.33 21.91 -43.80 21.91 -62.77 21.91 -98.58
Panel 32.00 25.69 -45.69 25.69 -72.22 25.69 -109.92
A ≤ 10 ft2 10.00 30.18 -47.93 30.18 -83.43 30.18 -123.37
A = 20 ft2 20.00 27.51 -46.59 27.51 -76.75 27.51 -115.36
A = 50 ft2 50.00 23.97 -44.83 23.97 -67.92 23.97 -104.76
A = 100 ft2 100.00 21.30 -43.49 21.30 -61.24 21.30 -96.74

Roof Coefficients (Overhang)

Component Eff. Area Zone 1 Pos Zone1 Neg Zone 2 Pos Zone 2 Neg Zone 3 Pos Zone 3 Neg
Truss/Rafter 85.33 0.31 -0.81 0.31 -2.20 0.31 -2.58
Panel 32.00 0.40 -0.85 0.40 -2.20 0.40 -3.09
A ≤ 10 ft2 10.00 0.50 -0.90 0.50 -2.20 0.50 -3.70
A = 20 ft2 20.00 0.44 -0.87 0.44 -2.20 0.44 -3.34
A = 50 ft2 50.00 0.36 -0.83 0.36 -2.20 0.36 -2.86
A ≥ 100 ft2 100.00 0.30 -0.80 0.30 -2.20 0.30 -2.50

Roof Design Pressures (Overhang) (psf)

Component Eff. Area Zone 1 Pos Zone1 Neg Zone 2 Pos Zone 2 Neg Zone 3 Pos Zone 3 Neg
Truss/Rafter 85.33 21.91 -43.80 21.91 -105.62 21.91 -122.60
Panel 32.00 25.69 -45.69 25.69 -105.62 25.69 -145.29
A ≤ 10 ft2 10.00 30.18 -47.93 30.18 -105.62 30.18 -172.19
A = 20 ft2 20.00 27.51 -46.59 27.51 -105.62 27.51 -156.16
A = 50 ft2 50.00 23.97 -44.83 23.97 -105.62 23.97 -134.96
A = 100 ft2 100.00 21.30 -43.49 21.30 -105.62 21.30 -118.93

Width of Zones 2,3 and 5

smaller of: 0.1 x 16.00 = 1.60 ft
0.4 x 14.42 = 5.77 ft
not less than: 0.04 x 16.00 = 0.64 ft
or 3 ft (controls) a = 3 ft

Note: Pressures are limit state design pressures for strength design. Multiple by 0.6 for ASD.
Min. Pressure: The design wind pressure for C&C shall not be less than 16 psf acting in either direction normal to the surface.
Copyright ® 2015 - Medeek Engineering Inc.
 Job#: 2015-002
WIND (C&C)
Wind Analysis Method Part 1: Low Rise Buildings
Basic Wind Speed (ultimate) 155.00 MPH
Topography Factor Kzt = 1.00 ASCE 7-10 Fig. 26.8-1
Directionality Factor Kd = 0.85 ASCE 7-10 Fig. 26.6-1
Internal Pressure Coefficients (GCpi) = 0.18 -0.18 ASCE 7-10 Table 26.11-1
Roof Pitch 4.00 :12 18.43 DEG
Roof Eve Height 13.000 FT
Peak Roof Height 19.000 FT α= 9.5
Mean Roof Height 16.000 FT zg = 900
Terrain Exp. Category C

Velocity Pressure qz=.00256KzKztKdV2

Height (ft) Kz qz
h= 16.00 FT 0.860 44.99

Wall Components p = qh(GCp - GCpi)

Component Span Length (ft.) Width (ft.) Trib. Area Eff. Area
Stud 13.625 1.33 18.16 61.88 61.88020833
Panel 8 4 32.00 32.00 21.33333333
A ≤ 10 ft2 - - - 10.00
A = 20 ft2 - - - 20.00
A = 50 ft2 - - - 50.00
A = 100 ft2 - - - 100.00
A = 200 ft2 - - - 200.00
A ≥ 500 ft2 - - - 500.00

Wall Coeficients taken from ASCE 7-10 Fig. 30.4-1

Wall Coefficients
Component Eff. Area Zone 4 Pos Zone 4 Neg Zone 5 Pos Zone 5 Neg
Stud 61.88 0.86 -0.96 0.86 -1.12
Panel 32.00 0.91 -1.01 0.91 -1.22
A ≤ 10 ft2 10.00 1.00 -1.10 1.00 -1.40
A = 20 ft2 20.00 0.95 -1.05 0.95 -1.29
A = 50 ft2 50.00 0.88 -0.98 0.88 -1.15
A = 100 ft2 100.00 0.82 -0.92 0.82 -1.05
A = 200 ft2 200.00 0.77 -0.87 0.77 -0.94
A ≥ 500 ft2 500.00 0.70 -0.80 0.70 -0.80

Wall Design Pressures (psf)

Component Eff. Area Zone 4 Pos Zone 4 Neg Zone 5 Pos Zone 5 Neg
Stud 61.88 46.79 -51.29 46.79 -58.50
Panel 32.00 49.07 -53.57 49.07 -63.05
A ≤ 10 ft2 10.00 53.08 -57.58 53.08 -71.08
A = 20 ft2 20.00 50.69 -55.19 50.69 -66.29
A = 50 ft2 50.00 47.53 -52.03 47.53 -59.97
A = 100 ft2 100.00 45.14 -49.64 45.14 -55.19
A = 200 ft2 200.00 42.75 -47.25 42.75 -50.41
A ≥ 500 ft2 500.00 39.59 -44.09 39.59 -44.09

Note: Pressures are limit state design pressures for strength design. Multiple by 0.6 for ASD.
Min. Pressure: The design wind pressure for C&C shall not be less than 16 psf acting in either direction normal to the surface.

Rev. 1.2.1 - 02/08/2015 Copyright ® 2015 - Medeek Engineering Inc.

 Job#: 2015-002
Roof Components p = qh(GCp - GCpi)
Component Span Length (ft.) Width (ft.) Trib. Area Eff. Area
Truss/Rafter 28 2 56.00 261.33 261.3333333
Panel 8 4 32.00 32.00
A ≤ 10 ft2 - - - 10.00
A = 20 ft2 - - - 20.00
A = 50 ft2 - - - 50.00
A ≥ 100 ft2 - - - 100.00

Monoslope Roof Coeficients taken from ASCE 7-10 Fig. 30.4-5A

Overhang Roof Coeficients taken from ASCE 7-10 Fig. 30.4-2B

Roof Coefficients ( Monoslope Roofs 3° < θ ≤ 10° )

Component Eff. Area Zone 1 Pos Zone1 Neg Zone 2 Pos Zone 2 Neg Zone 3 Pos Zone 3 Neg
Truss/Rafter 261.33 0.20 -1.10 0.20 -1.20 0.20 -1.20
Panel 32.00 0.25 -1.10 0.25 -1.25 0.25 -1.50
A ≤ 10 ft2 10.00 0.30 -1.10 0.30 -1.30 0.30 -1.80
A = 20 ft2 20.00 0.27 -1.10 0.27 -1.27 0.27 -1.62
A = 50 ft2 50.00 0.23 -1.10 0.23 -1.23 0.23 -1.38
A ≥ 100 ft2 100.00 0.20 -1.10 0.20 -1.20 0.20 -1.20

Roof Design Pressures ( Monoslope Roofs 3° < θ ≤ 10° ) (psf)

Component Eff. Area Zone 1 Pos Zone1 Neg Zone 2 Pos Zone 2 Neg Zone 3 Pos Zone 3 Neg
Truss/Rafter 261.33 17.09 -57.58 17.09 -62.08 17.09 -62.08
Panel 32.00 19.32 -57.58 19.32 -64.31 19.32 -75.44
A ≤ 10 ft2 10.00 21.59 -57.58 21.59 -66.58 21.59 -89.07
A = 20 ft2 20.00 20.24 -57.58 20.24 -65.22 20.24 -80.95
A = 50 ft2 50.00 18.45 -57.58 18.45 -63.43 18.45 -70.21
A = 100 ft2 100.00 17.09 -57.58 17.09 -62.08 17.09 -62.08

Roof Coefficients (Overhang)

Component Eff. Area Zone 1 Pos Zone1 Neg Zone 2 Pos Zone 2 Neg Zone 3 Pos Zone 3 Neg
Truss/Rafter 261.33 0.30 -0.80 0.30 -2.20 0.30 -2.50
Panel 32.00 0.40 -0.85 0.40 -2.20 0.40 -3.09
A ≤ 10 ft2 10.00 0.50 -0.90 0.50 -2.20 0.50 -3.70
A = 20 ft2 20.00 0.44 -0.87 0.44 -2.20 0.44 -3.34
A = 50 ft2 50.00 0.36 -0.83 0.36 -2.20 0.36 -2.86
A ≥ 100 ft2 100.00 0.30 -0.80 0.30 -2.20 0.30 -2.50

Roof Design Pressures (Overhang) (psf)

Component Eff. Area Zone 1 Pos Zone1 Neg Zone 2 Pos Zone 2 Neg Zone 3 Pos Zone 3 Neg
Truss/Rafter 261.33 21.59 -44.09 21.59 -107.07 21.59 -120.56
Panel 32.00 26.05 -46.31 26.05 -107.07 26.05 -147.27
A ≤ 10 ft2 10.00 30.59 -48.58 30.59 -107.07 30.59 -174.54
A = 20 ft2 20.00 27.88 -47.23 27.88 -107.07 27.88 -158.29
A = 50 ft2 50.00 24.30 -45.44 24.30 -107.07 24.30 -136.81
A = 100 ft2 100.00 21.59 -44.09 21.59 -107.07 21.59 -120.56

Width of Zones 2,3 and 5

smaller of: 0.1 x 50.00 = 5.00 ft (controls) a = 5 ft
0.4 x 16.00 = 6.40 ft
not less than: 0.04 x 50.00 = 2.00 ft
or 3 ft

Note: Pressures are limit state design pressures for strength design. Multiple by 0.6 for ASD.
Min. Pressure: The design wind pressure for C&C shall not be less than 16 psf acting in either direction normal to the surface.
Copyright ® 2015 - Medeek Engineering Inc.
 Job#: 2015-002

Roof Coefficients ( Monoslope Roofs 3° < θ ≤ 10° )

Component Eff. Area Zone 2' Pos Zone 2' Neg Zone 3' Pos Zone 3' Neg
Truss/Rafter 261.33 0.20 -1.50 0.20 -1.60
Panel 32.00 0.25 -1.55 0.25 -2.09
A ≤ 10 ft2 10.00 0.30 -1.60 0.30 -2.60
A = 20 ft2 20.00 0.27 -1.57 0.27 -2.30
A = 50 ft2 50.00 0.23 -1.53 0.23 -1.90
A ≥ 100 ft2 100.00 0.20 -1.50 0.20 -1.60

Roof Design Pressures ( Monoslope Roofs 3° < θ ≤ 10° ) (psf)

Component Eff. Area Zone 2' Pos Zone 2' Neg Zone 3' Pos Zone 3' Neg
Truss/Rafter 261.33 17.09 -75.58 17.09 -80.07
Panel 32.00 19.32 -77.80 19.32 -102.34
A ≤ 10 ft2 10.00 21.59 -80.07 21.59 -125.06
A = 20 ft2 20.00 20.24 -78.72 20.24 -111.52
A = 50 ft2 50.00 18.45 -76.93 18.45 -93.62
A = 100 ft2 100.00 17.09 -75.58 17.09 -80.07

Note: Pressures are limit state design pressures for strength design. Multiple by 0.6 for ASD.
Min. Pressure: The design wind pressure for C&C shall not be less than 16 psf acting in either direction normal to the surface.

Copyright ® 2015 - Medeek Engineering Inc.