Proper Roof Venting

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

Proper roof venting.

To calculate the amount of ventilation you need for your home visit gaf s ventilation calculator now. Hot air exhaust vents located at the peak of the roof allow hot air to escape. 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. Obviously more research is needed but here s what we do know.

If there are asphalt shingles on your roof the attic must be ventilated to comply with the terms of the. 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. Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. It is important that air movement occurs and is not impeded by any framing members of the home.

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

Here are four signs of an unventilated or under ventilated attic. If it does you ll have to decide what type of vents will work best and how to properly install them. If you don t see any attic vents on the roof or in the eaves you need to add some. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.

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. Don t avoid ventilating your attic for fear you re letting cold air into the house. Your actual living space is sealed. Touch your ceiling on a warm sunny day.

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. As the ventilation helps moderate the temperatures in the attic this may also help moderate the temperature in the. See the benefits of attic ventilation a new roof is more than just shingles.

Proper attic ventilation offers numerous advantages to the homeowner.