Protecting Your Roof Against Potential Failure Caused by Snow Load

A series of winter storms could place a heavy load of snow and ice on buildings. The weight of snow and ice, subjected to below-freezing temperatures might weaken or buckle roof structures. Even if temperatures moderate, snow can sponge up rainwater, adding to the weight problem.

After a severe winter storm, the Wethersfield Building Inspection Division recommends that all owners and managers of buildings, particularly those with large, flat roof areas, INSPECT THEM and OPEN ROOF DRAINS to relieve stress. Inspections should include procedures to search thoroughly for signs of strain and sagging beams.

• Be alert for large accumulating snow buildup or snow drifting on roofs of both residential and commercial buildings.
• If roof snow is removed with the use of a snow rake, remember that roof shingles are brittle when temperatures are low.
• Take all possible precautions if it is necessary to work off ladders. keep in mind that ladder rungs may ice up and snow and ice easily collect on boot soles. ladders and snow rakes conduct electricity and should not be placed near overhead wires.
• Flat roof drainage systems should be kept clear to minimize the risk of excess roof ponding in the event of heavy rainfall.
• Use extreme caution when breaking large icicles that are overhanging walkways. Be careful not to damage gutters or siding. Large icicles do not necessarily mean ice damming is occurring.