Snow Load Calculator
Estimate roof snow load based on ground snow, roof pitch, and exposure conditions (ASCE 7).
Snow & Roof Parameters
Design ground snow load (pg)
Rise per foot of run (e.g., 6/12)
Total projected roof area
Thermal factor (Ct)
Additional Factors
Building importance (Is)
Usually 1.0 for slopes ≤ 30°
Wind exposure factor (Ce)
Sloped Roof Load
0.0
psf
Total Load
0
lbs
Snow Density
0.0
pcf
Ground Snow (pg)
0.0 psf
Thermal Factor (Ct)
0.0
Importance (Is)
0.0
Exposure (Ce)
0.0
Slope Factor (Cs)
0.0
Snow Depth
0.0 in
Low Load
Load Category
Low
risk level
Effective Area
0
ft²
Design Load (psf)
0.0
ASCE 7
ASCE 7-16: pf = 0.7 × Ce × Ct × Is × pg (for heated buildings, slopes ≤ 30°)
pf = 0.7 × Ce × Ct × Is × pg
Snow Density = 0.13 × pg + 14 (pcf)