Snow Resistant Roof Vents

Organizations such as the nrca recommend against this roof vent style in cold climates because it can promote ice dams.

Snow resistant roof vents.

If you install a ridge vent that is not weather resistant water and snow that infiltrates your attic can cause damage there or elsewhere in your house and you may not even know it is leaking until it s too late. A drip edge vent is made of a corrosive resistant material that sticks out about three inches back from the roof edge and then bends downward over them. Homeowner had enough snow through one of the vents to cause considerable water damage to the storey below last spring. In cold climates the primary purpose of attic or roof ventilatin is to maintain a cold roof tempeature to control ice dams created by melting snow and to vent moisture that moves from the conditioned space to the attic.

Snow coming through roof vents hi i m looking for suggestions to the possible cause of snow entering the attic through at least five of the seven roof vents on the home pictured in attachments. Roofers often complain that roof vents battered by storms can fail allowing blowing snow and rain to penetrate the attic. Melted snow in this case is caused by heat loss from the conditioned space. Invented by a roofer to defeat the harsh canadian winters this csa approved static box vent has been independently tested to block 99 99 of snow and rain even in severe storm conditions.

O hagin weathermaster attic vents the best ventilation solution for tile shingle slate or shake roofs in areas where rain or snow may be a concern. In considering ridge vents you may be wondering why having a ridge vent that is weather resistant is so important.