Seal Attic Vents In Winter

Seal penetrations in the attic to stop free air flow.

Seal attic vents in winter.

Bats will hibernate in the winter if the temperature stays at around 35 to 40 f. Take for example ridge vents. If there are air leaks between the attic and the living space attic vents become outlets for conditioned air driven by the stack effect. About attic ventilation.

In the summer natural air flow in a well vented attic moves super heated air out of the attic protecting roof shingles and removing moisture. They also release excess moisture from your attic during the winter. Seal nail penetrations and around electrical hvac and chimney. In the winter the vents will cause the attic to become cold but this should not damage your home or increase the energy use of your home so covering the roof vents is not necessary.

Seal openings around plumbing vents and electrical wires with expanding foam photos 8 and 9. Seal around electrical boxes with caulk photo 9. Wear disposable gloves and eye protection. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.

Blocking the vents can even harm your home by trapping moisture inside the attic. I have roof vents so i have roof ventilation. The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available. Proper insulation and air sealing also keeps attics cold in winter by blocking the entry of heat and moist air from below.

If you live in an area with mild temperatures throughout the year the bats will stay year round. Intake vents located at the lowest part of the roof under the eaves allow cool. If it gets colder than that the bats in the attic will migrate out allowing you to seal up cracks and other entry points once they leave for the season. This stuff is super sticky and almost impossible to get off your clothes and skin.

In addition to the attic ventilation solutions above there are more steps you can take to prevent moisture issues in your attic and help maintain proper attic ventilation throughout the winter. The insulation will resist heat transfer into the. 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. During cold winter months the attic vent fan is not necessary.

Roof vents allow air to circulate through your attic and exit your home. Your attic vents perform another job than just releasing excess heat during the summer. Small attic vents located below the roof peaks provide sufficient ventilation to let the moisture created by heat rising into the.