Vents & ice dams: Will adding vents eliminate my ice dam and condensation problems?
Adding vents will not solve these problems. Ice dams and condensation problems occur because of excessive heat loss from the living area into the attic or ceiling cavity. The only way to properly address these problems is by eliminating the heat loss and air leakage. Opinions differ as to the need and effectiveness of vents in an attic. While building codes and the shingle manufacturers require a certain amount of ventilation The Canada Mortgage and Housing Corporation state that additional ventilation may contribute to the problem. Go to Industry Topics and click on Ice Dams or Ventilation for more information.
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