Roof Snow Load Calculator
Calculate safe snow load capacity for your roof. Determine if your roof can handle current snow accumulation based on building codes, roof type, and location.
Step 1: Roof Specifications
Understanding Snow Load
Snow load is calculated as snow depth (inches) × snow density (lb/ft³) ÷ 12 × slope factor. Fresh snow weighs 5-12 lb/ft³ while wet/compacted snow can reach 20-30 lb/ft³.
Step 2: Building Details
Building Code Reference
Most residential roofs are designed for 20-40 psf snow load. Commercial buildings typically require 30-50 psf. Always consult local building codes for exact requirements.
Roof Snow Load Results
Roof Snow Load
Roof Type Load Comparison
| Roof Type | Slope Factor | Snow Load (psf) | Total Weight (lbs) |
|---|
Load Breakdown Analysis
Snow Load Formula
Snow Load = (Depth × Density ÷ 12) × Slope Factor
To calculate roof snow load: Convert snow depth to feet (÷12), multiply by snow density, then apply slope factor. Compare result to local building code requirements.
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