Snow Load Roof Calculator
Snow Load Roof
Calculate the snow load stress on your roof based on snow depth, density, and roof area
sq ft
inches
Formula
Snow Load (psf) = (Snow Depth / 12) x Snow Density x Pitch Factor
Frequently Asked Questions
How much snow can a roof hold?
Most residential roofs can support 20-30 pounds per square foot of snow load. Flat roofs are more vulnerable than steep roofs because snow accumulates more.
When should I remove snow from my roof?
Consider removing snow when the load exceeds 20 psf or when you notice doors sticking, cracks in walls, or creaking sounds from the structure.