Blocking Attic Vents In Winter

Step 6 remove any insulation from the new vent photo by merle henkenius.

Blocking attic vents in winter.

If the gable vents aren t letting in rain or snow leave them alone. The photograph at left shows severe mold on the underside of roof sheathing in a 1920 s cape cod attic where there was no under roof ventilation. The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available. Believe it or not the cold temperatures outside combined with the warm air down below mean that there can be an excessive amount of moisture building up in your attic during the cold.

Rectangular roof vents installed on one side of the roof only. Adding a ridge vent is a fine idea and don t worry about it competing with the gable vents. Roof ventilation is a complex topic particularly for cathedral ceilings where there is no attic between the living space and the roof. Rectangular roof vents work best when the wind blows over the top of them rather than into them.

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. Kitchen and bath fans vented into the attic. If the attic is insulated with fiberglass batts just pull back any that are blocking the flow of air. You will also discover that this product can work by itself to release moisture from the house which is especially useful during the winter months.

Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an. During cold winter months the attic vent fan is not. Vent these fans through the roof or soffit. Install rectangular roof vents on both sides of the roof.

Trim the last vent to length using aviation snips. The soffit vents are now installed but you still need to make sure there s no insulation blocking the new vents. They also release excess moisture from your attic during the winter. Roof ridge vents do work well when there are soffit vents or box vents that help to draw air into the attic.

While hardly anybody agrees on the best roof ventilation system everybody agrees some roof vents do hardly any good at all. Take for example ridge vents. Hot air exhaust vents located at the peak of the roof allow hot air to escape. Blocking the vents can even harm your home by trapping moisture inside the attic.

Roof vents allow air to circulate through your attic and exit your home. Blocked soffit vents invites attic or roof cavity moisture condensation mold. Your attic vents perform another job than just releasing excess heat during the summer.