Technical bulletins
Snow Covered RoofsEach winter, during periods of significant snowfall, the buildup of snow on roofs can be a real concern. Snow accumulation depends on many factors, including wind direction, building orientation, roof pitch, shelter, and, of course, weather conditions. For example, houses are more at risk when the wind is blowing from the west and the lower side of the house is to the east. Trees and outdoor buildings also play a vital role in the snow that accumulates on the roofs.
