Tons of snow, deep freeze, and melting snow cause ice dams on the roofs. If left unattended, the ice dams can further increase the moisture on the roof damaging the shingles. Installing top quality products, proper insulation, adequate ventilation, and air-sealing the building are the key ways to prevent ice dams on roofs.
Heavy winter snow accumulates on the roofs and stays there until warm weather arrives. Hot sun rays melt the snow on the roof and the water drops down to the cold eaves and then freezes again. Hot air in the attic leaks into the cold roofs melting the snow and refreezing again at the eaves. Continuous back up of the ice on the edges of the roof forms ice dams. The snow on the steep slopes melts and falls off the roof. However, cold parts of the roof such as valleys and eaves freeze the melted water again to form the ice dams.
Ice dams can break the shingles and further damage the roof deck. Improper attic insulation and wrong ventilation cause the ice dams. The difference in temperatures in the unheated parts of the roof such as garages, sheds, and outbuildings also cause ice dams and icicles. Ice dams make the building look ugly and are also a clear indication of roof problems which must be fixed by experts.
Ice dams are also formed by the shade of trees, walls, and dormers on the roof which can cause immediate refreezing. Snow on the unheated parts of the house is melted by the sun rays and refreeze again before reaching the ground.
Prevent Ice Dams
Ice dams can be prevented by installing proper roofing system. A robust roofing system with underlayment, ice/water barrier, deck, and shingles are crucial. Proper installation of the material on the sloped and flat parts of the roof is key to prevent ice dams. Ice barrier, flashing, or back-pan may be needed along the walls, skylights, chimneys, and other parts of the roof.
Edges of the roof where water is likely accumulated have to be sealed completely. Sufficient insulation in the attic is needed to prevent air leaks. Roof ventilation plays a key role to maintain the roof temperature same as the outside of the house. Fluid air/water barriers can be installed on the nails to prevent water leaks.
Quality products from CertainTeed can provide a comprehensive roofing solution to prevent ice dams. The superior products are to be installed according to manufacturer recommendation to prevent leaks and ice dams.
Preventing ice dams is a continuous process and has to be considered at the new roofing or re-roofing stage itself. Getting fall roof inspection and spring roof inspection is the best idea to prevent ice dams in winter.
Clearing Ice dams
Clearing ice dams is a task that must be accomplished only by professionals. Using do-it-yourself products such as roofing melt or deicer bricks may further damage the shingles and your shingle warranty may not be effective. You may injure yourself by falling or slipping.
Multiple aspects of ice dam removal must be considered. Clearing the snow with a snow rake, de-icing the eaves, checking the attic insulation, air-sealing the building, and maintaining the roof temperature is required.
Ice dam Experts
Contact roofing professionals at Olde Town Roofing to prevent ice dams on your roof. Olde Town Roofing is a premier contractor and is a certified SELECT ShingleMaster™ roofing contractor from CertainTeed. Their experts can find the root cause and suggest a long-lasting solution for your ice dam problems. Call Olde Town Roofing today at 309-517-1676 or 309-738-5550 for all your roofing needs.