Snow Load Calculator

Roof snow load calculation per ASCE 7-22 Chapter 7

ASCE 7-22Drift LoadsUnbalancedRain-on-Snow

Calculation results are decision-support tools. The design engineer must review and verify all results independently.

US City Preset (approximate pg)

pg (kN/m²)

pg (psf)

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Roof Type

Roof Slope (°)

Roof Surface

Affects slope factor Cs per Figure 7.4-1

Terrain Category

Roof Exposure

Thermal Condition

Risk Category

Rain-on-Snow Surcharge (§7.10)Unbalanced Snow Load (§7.6)Snow Drift at Roof Step (§7.7-7.8)

Snow Load Calculator

Configure parameters and click Calculate