Engineering Tools

Snow LoadCalculator

Calculate roof snow loads per ASCE 7 standards. Determine design snow loads based on location, roof type, and exposure conditions.

Snow Load Calculation

Design Snow Load

Flat Roof Load (pf)24.0psf
Sloped Roof Load (ps)18.0psf

Snow Analysis

Ground Snow (pg)30 psf
Slope Factor (Cs)0.75
Roof Length20 ft
Total Load (20ft span)360 lb/ft
Snow Depth (fresh)7.5 inches

Typical Ground Snow Loads

  • South: 10-20 psf
  • Midwest: 25-40 psf
  • Mountain: 50-100+ psf
  • Alaska: 100+ psf

Slope Factors (Cs)

  • 0-30°: 1.0 (slippery)
  • 30-45°: 0.5-1.0
  • 45-70°: 0.0-0.5
  • >70°: 0 (no snow)

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