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ASCE-7-16 & 7-10 Wall Components & Cladding Wall Wind Pressure Calculator

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Watch our Roof Wind Pressure tutorial to learn more

Use this tool to calculate wall zones 4 & 5 positive & negative ASD design wind pressures for your project.

CALCULATOR NOTES

1. This calculator is for estimating purposes only & NOT for permit or construction. Results are ONLY valid when signed & sealed from a professional engineer from Engineering Express. Press ‘Order Certified Copies For Permit’ after fields are filled out to order a review & certification delivered to you for permit.

2. Do not use fractions. Round up everything but width and height – round those down.

3. For Florida permits after January 1, 2021 & for 2018 IBC code, use the ‘ASCE -16-7th Edition Florida Building Code (2020) option.

4. Pressure results are Allowable Stress (ASD) design method.

5. Visit EngineeringExpress.com/Wind to learn more about the terms & parameters of this tool & HOVER over / press for mobile on the input labels to reveal more information about that item.

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ASCE COMPONENTS & CLADDING WALL OPENING
ASCE COMPONENTS & CLADDING WALL OPENING
WIND LOAD CALCULATOR
SEE HELP & IMAGE AT BOTTOM - HOVER/CLICK LABELS FOR HELP

Click to read our informative help page on this tool.			INPUT AREA 1

The peak 3‐second gust wind speed. Consult your building department or engineer for governing codes. ASCE CODE YEAR

The peak 3‐second gust wind speed. Consult your building department or engineer for governing codes. WIND VELOCITY, Vult					MPH

See help for explanations. If unsure, use C for non coastal, D if near coastal or large ﬂat terrains. ASCE EXPOSURE CATEGORY

This is generally 0.85. Change to 1.0 only if required by building department or special use case directed by the architect / engineer. WIND DIRECTIONALITY FACTOR Kd

Use 1.0 for ﬂat terrain. For areas on or near hills, this will need to be calculated elsewhere. Refer to the help for more. TOPOGRAPHY FACTOR Kzt

For Every 1,000 above sea level, atmospheric pressure and corresponding wind pressure is decreased per ASCE 7‐16. Select 0 if unsure or at sea level. ELEVATION ABOVE SEA LEVEL					FT

See help and image below. This is the shortest building dimension. The End zone 5 is 10% of this value, 40% of height, but not less than 3’ MIN OVERALL BLDG DIMENSION					FT

This is the average roof height from the peak to the eave. See image below. Your minimum heights will be adjusted to these values: Exposure B => 30' Exposure C => 15' Exposure D => 7' MEAN ROOF HEIGHT, MRH					FT

For buildings over 60, a reduction is permitted for positive pressures based on the actual elevation. Enter the elevation from ground to the opening. ELEVATION OF INSTALLATION					FT

If the roof slope is less than 10 degrees, there is a slight reduction in pressure. If complex roof or unsure, set to >= 10°. ROOF SLOPE

# OF OPENINGS TO ANALYZE
If yes, the calculaon for area of opening switches from Width * Height to Height * Height/3. It operates on the assumpon that impact shuers are tested inﬁnite width. IMPACT SHUTTER ANALYSIS

INPUT AREA 2				Positive is the force inward into the building, negative is pushing out. Expect larger negative values due to building pressurization. RESULTS (ASD)
INPUT AREA 2				CORNER DIST 'a' INVALID WITHOUT ENGINEER SEAL
This is your label to help identify the answer on accompanying layout drawings. MARK	(W*L)/144 must be lower than 700ft² to use the C&C method. WIDTH-in	(W*L)/144 must be lower than 700ft² to use the C&C method. HEIGHT-in	Use Zone 4 for interior (non corner) openings. Zone 5 are any corners per sketch below & help. IF UNSURE USE 5! ZONE	POSITIVE	NEGATIVE


















































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