Rooftop Equipment Wind Pressure Calculator

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By clicking below, you agree that the use of this design aid is for estimating purposes only. Results are not valid for use & no construction or design shall be performed without the review and certification by a registered professional engineer.

No warranty or guarantee whatsoever is offered with any results obtained herein.


AGREE & CONTINUE

ASCE 7-16 & 7-22 ROOFTOP EQUIPMENT DESIGN WIND PRESSURE CALCULATOR

Also watch our Wall Pressure Tutorial to learn more

This calculator determines site-specific wind pressures for rooftop equipment based on site-specific conditions and unit information. 

This calculator is for estimating purposes only and NOT for permit use. Results are only valid when reviewed, signed, and sealed by a Professional Engineer from Engineering Express. Click “Order Certified Results” to order a review and certification delivered to you for permit.

See calculator support page for explanations, examples, limitations & conditions of use.
Mobile Users: Please tilt phone horizontally for optimal experience. (Calculator works best on a wider screens.)

 

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Calculations are based on ASCE 7-16/22 Section 29.4.1 Design Wind Loads: Other Structures: Rooftop Equipment and Structures for Buildings. Calculations are valid for: ASCE 7-16 & 7-22, FBC 2020 & 2023, and IBC 2015, 2018, & 2021.

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ver aeb Crafted with love by Eric Reit and Gabriel Saslafsky.
Rooftop Equipment Wind Pressure Calculator
Fill in all orange fields. Click "Help - Glossary" for more information.
Input Site-Specific Conditions:
Ultimate Wind Velocity, Vult  mph
ASCE Exposure Category 
 
Mean Roof Height, MRH  ft
In Florida? (Affects Clearance)
 
Input Unit Information: (See Image Below)
# of Units (Max. 5)
 
Name / Unit  Unit Clearance
Model Depth Height Height
Number (in) (in) (in)
U.N.O. by AHJ: Min. Clearance (in) 
U.N.O. by AHJ: Min. Clearance (in) 
U.N.O. by AHJ: Min. Clearance (in) 
U.N.O. by AHJ: Min. Clearance (in) 
U.N.O. by AHJ: Min. Clearance (in) 
Output: Design Wind Pressures (ASD)
Name / Lateral Uplift
Model Pressure Pressure
Number (± psf) (psf)
Figures for Unit Information:
rooftop mechanical equipment dimensions
rooftop mechanical equipment dimensions

Rooftop Equipment Wind Pressure Calculator

$80.00 – $120.00

Calculate mechanical rooftop equipment wind pressures & stand clearance heights for up to 5 units. Order certified copies for permit.

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The document you are purchasing is a generic performance evaluation. Use of this document for any site-specific application is the responsibility of others. Installations beyond the performance limitations listed within the purchased document, any site-specific designs/certifications, or California-specific projects shall require custom engineering and invalidate the use of this evaluation. Learn more about the use of this document

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