Snow Load Calculator
Calculate the design roof snow load from ground snow load, exposure, roof type, and building importance.
How to Use the Snow Load Calculator
- Enter the ground snow load in kPa (from local code maps).
- Select the roof exposure condition.
- Select the roof thermal condition.
- Select the building importance category and click Calculate.
Casi d'Uso
- •Structural design of roofs in snowy climates.
- •Checking existing roof capacity during heavy snowfall.
- •Building code compliance verification.
- •Comparing snow load for different roof configurations.
Formula
S = Cs × Ct × Is × Sg, where Cs = exposure factor, Ct = thermal factor, Is = importance factor, Sg = ground snow load.
Domande Frequenti
What is the exposure factor?
The exposure factor accounts for wind redistribution of snow: sheltered roofs accumulate more (1.2), windswept roofs less (0.8).
What is the importance factor?
Essential facilities like hospitals use Is = 1.15 to provide an additional safety margin.
Is it free?
Yes, all calculators on OhMyCalc are completely free.