Proper Roof Venting

Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic.

Proper roof venting.

Prior to installing the ridge vent a 1 inch wide strip of roof decking is cut out along both sides of the ridgeline to allow for air movement through the vent. Proper attic ventilation offers numerous advantages to the homeowner. If you don t see any attic vents on the roof or in the eaves you need to add some. If there are asphalt shingles on your roof the attic must be ventilated to comply with the terms of the.

Theory behind venting ice dams form when a home s escaping heat warms the roof sheathing and melts the underside of the snow layer on the roof. Beyond the decreased capacity for insulation when venting the roof deck venting the roof deck or the attic has some other drawbacks worth considering. A ridge vent is a ventilation strip that is placed along the ridgeline of the home. Obviously more research is needed but here s what we do know.

Hot air exhaust vents located at the peak of the roof allow hot air to escape. The option you choose will be contingent on factors such as the type of roof you re working with and the local climate. It helps prevent moisture buildup in your attic which during colder months can help prevent condensation. You ll first need to consider whether or not your house s roof needs ventilation.

Effective attic ventilation systems reduce damaging heat and moisture in your attic promote energy efficiency by helping to reduce the load on your air conditioner in the summer and also reduce the risk of ice dam formation on your roof. Your actual living space is sealed. The intent of roof venting varies depending on climate but it is the same if you re venting the entire attic or if you re venting only the roof deck. As the ventilation helps moderate the temperatures in the attic this may also help moderate the temperature in the.

Touch your ceiling on a warm sunny day. See the benefits of attic ventilation a new roof is more than just shingles. Don t avoid ventilating your attic for fear you re letting cold air into the house. It is important that air movement occurs and is not impeded by any framing members of the home.

Proper attic ventilation can help reduce the load on your air conditioner. A hot ceiling tells you that the attic is acting like a solar oven. Look at your eaves and roof. To calculate the amount of ventilation you need for your home visit gaf s ventilation calculator now.

In cold climates snow can enter the soffit and ridge vents melt and potentially cause rot.