Wind Uplift Calculations for Roofing Projects

Wind load calculations and roof zone pressures based on ASCE 7 methods, with all assumptions and formulas visible.

You'll enter project parameters and immediately view Summary and Technical results.

What this tool provides

Wind load and roof zone pressure calculations for roofing projects using ASCE 7-16 and ASCE 7-22

Summary and Technical views with visible formulas, assumptions, and calculation steps

What this tool does not provide

Engineering services or stamped/sealed calculations

Code compliance certification, approvals, or final design decisions

A substitute for the judgment of a licensed design professional or authority having jurisdiction

How díon works

1
Input
Enter project parameters: site address, roof height, building or roof type, exposure category, and the ASCE 7 edition used
2
Calculate
The calculation engine applies ASCE 7 wind load procedures to your inputs and displays all assumptions and formulas used
3
Review
View roof zone pressures in ASD format in a Summary view, with optional Technical details and formulas for review

Summary and Technical views for wind load calculations

Summary View

Concise results formatted for field use, including:

  • Basic wind speed with source citation
  • Zone pressures in ASD format (Zone 1, 2, 3)
  • Conceptual roof zone diagram for reference only (not a substitute for project-specific design documents)
Technical View

Detailed technical breakdown for review and documentation:

  • Ultimate pressures with Zone 1' when applicable
  • ASD conversion logic shown explicitly
  • Visible formulas, key assumptions, and calculation steps used to generate pressures

Frequently asked questions

What standards does this calculator follow?

This tool implements wind load procedures from ASCE 7-16 and ASCE 7-22 Chapter 30 for roofs. All formulas and key assumptions are displayed in the Technical view.

Important: This tool does not provide engineering services, does not produce signed or sealed documents, and does not replace the judgment of a licensed design professional or authority having jurisdiction.

Can I save my calculations?

Your calculations are stored locally in your browser. You can access recent calculations from the Recent Calculations page. Clearing your browser data will remove saved calculations.

What is the difference between ASD and Ultimate pressures?

Ultimate pressures are the full design loads, while ASD (Allowable Stress Design) pressures are factored down by 0.6 per ASCE 7 Section 30.3.2. The Summary view shows ASD pressures for practical use, while the Technical view shows both.

Do I need to create an account to use the calculator?

No account is required. You can run calculations immediately. Recent calculations are stored locally in your browser.

Methodology notes

  • •Wind loads based on ASCE 7-16 and ASCE 7-22 Chapter 30 procedures for roofs
  • •Pressures shown in ASD and ultimate formats with explicit conversion factors
  • •Conceptual roof zone diagrams are for reference only