Attic Ventilation In Winter

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.

Attic ventilation in winter.

About attic ventilation natural attic ventilation. For proper attic ventilation it is important to have both intake and exhaust vents installed. Not true for all parts of canada. In the winter allowing a natural flow of outdoor air to ventilate the attic helps.

During cold winter months the attic vent fan is not. Eliminating moisture problems through attic ventilation works to improve indoor air quality. Throughout the balance of this digest the terms attic and roof will and can be used interchangeably. Posted november 18 2019 by lewis insulation filed under attic ventilation.

It also prevents the warm damp and dark environment that pests love keeping rodents and insects from nesting in your. 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. 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 order to achieve proper attic ventilation a ratio of 1 1 is needed for the intake and exhaust vents. And with our unpredictable weather and temperatures we are at a high risk of getting ice dams. Proper attic ventilation in winter prevents mold and mildew growth safeguarding your family against these harmful contaminants. Solutions for attic ventilation.

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.