Attic Ventilation In Winter

Attic vent fans pull the cool air from outside into the attic to chill the air during the summer months and aide in the cooling of the home.

Attic ventilation in winter.

Solutions for attic ventilation. Not true for all parts of canada. Proper attic ventilation in winter prevents mold and mildew growth safeguarding your family against these harmful contaminants. In order to achieve proper attic ventilation a ratio of 1 1 is needed for the intake and exhaust vents.

In certain regions most of the data is from the national research council in the saskatoon area it appears that the only effective way to stop continuous accumulation of frost in the attic is to not ventilate at all during the worst of winter but to seal. Posted november 18 2019 by lewis insulation filed under attic ventilation. In the winter allowing a natural flow of outdoor air to ventilate the attic helps. About attic ventilation natural attic ventilation.

The more attic ventilation in winter the better. How proper attic ventilation can help prevent ice dams this winter. The intake vents allow dry air from the outside to enter while the exhaust vents allow the moist air to escape. Here in minnesota we get quite the snow filled winter.

In cold climates the primary purpose of attic or roof ventilation is to maintain a cold roof temperature to control ice dams created by melting snow and to vent moisture that moves from the conditioned space to the attic ventilation acts to bypass the vapour barrier created by most roof. At first it may seem odd to add insulation for warmth and then purposely allow cold air to enter the attic through vents but this combination is the key to a durable and energy efficient home. For proper attic ventilation it is important to have both intake and exhaust vents installed. Throughout the balance of this digest the terms attic and roof will and can be used interchangeably.

And with our unpredictable weather and temperatures we are at a high risk of getting ice dams.