It also discusses the dangers associated with sliding snow icicles ice dams and ice build up on sidewalks.
Sliding snow on sloping roofs.
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Sloped roof snow loads calculations and regional design.
Snow and ice sliding off sloped slippery roofs can damage property and injure people as far as 30 feet away from two story facilities.
They must be able to carry substantial snow loads 1 3 but the possibility also exists of the snow suddenly breaking loose and sliding off and endangering people vehicles other roofs and mechanical and electrical installations below.
Designing for snow on all such sloping roofs even on inclines as low as 10 calls for a double measure of caution.
Snow sliding off roofs can block pedestrian and vehicle.