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.

To calculate the amount of ventilation you need for your home visit gaf s ventilation calculator now. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Look at your eaves and roof. If there are asphalt shingles on your roof the attic must be ventilated to comply with the terms of the.

Proper attic ventilation can help reduce the load on your air conditioner. Don t avoid ventilating your attic for fear you re letting cold air into the house. In cold climates snow can enter the soffit and ridge vents melt and potentially cause rot. It is important that air movement occurs and is not impeded by any framing members of the home.

A ridge vent is a ventilation strip that is placed along the ridgeline of the home. 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. It helps prevent moisture buildup in your attic which during colder months can help prevent condensation. Proper attic ventilation offers numerous advantages to the homeowner.

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. See the benefits of attic ventilation a new roof is more than just shingles. If you don t see any attic vents on the roof or in the eaves you need to add some. 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 hot ceiling tells you that the attic is acting like a solar oven. Here are four signs of an unventilated or under ventilated attic. 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.

Touch your ceiling on a warm sunny day. 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. Obviously more research is needed but here s what we do know.

You ll first need to consider whether or not your house s roof needs ventilation.