Roof Snow Load Calculator

Whether you are building an accessory structure in the backyard or trying to decide whether you need to shovel off your roof after a storm, you need a way to learn whether your roof materials are up to the weight expressed as psf, or pounds per square foot of the snowfall in your area. This pressure is increased or decreased based on the pitch of the roof. You can compute real-time snow load for quick decision-making or use official figures to design a new building.

Snow-related building collapses are usually caused by heavy loads of snow on roofs, so this season has been unique because of the extreme weather. Recent rain and sleet made the situation even worse, since the rain could get soaked up by the snow and add even more weight to roofs.