Venting Dormer Attics

The shutter will open when the electric gable vent is operating.

Venting dormer attics.

Low profile dormers are often called eyebrow vents. Fans and vents may be installed on the roof system that will draw the air out of the attic space and exhaust it to the exterior. William ridley posted in energy efficiency and durability on february 21 2011 12 57pm we live in zone 6a and our house has several dormers on the second floor. Calculate or enter the square footage of the attic or area to be vented.

But before you cut any holes plan the locations of the attic vents. Important for proper cooling of the attic dormer vents are a common entry point for embers. Our half round dormer vents are attractive long lasting and fire resistant. In mixed climates ventilation serves either role depending on the season.

Because the roof isn t in play here it doesn t matter how many hips valleys dormers or gables there are. Half round dormers like the one below often are often called round dormers. Constructed of white aluminum that can be painted. Proper attic ventilation consists of a balance between air intake at your eaves soffits or fascias and air exhaust at or near your roof ridge.

Whole house fans powered attic fans. When installed as part of a properly balanced when installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic. It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters. One static vent style is the turbine vent which uses wind to power its enclosed fan all it takes is a light breeze to rotate the blades and suck heat out of the attic view example on the home.

Adding attic vents is a simple matter of cutting holes and installing vents. Power gable vent shutter is automatic 20 in. Photos 1 6 show how it s done. Mark the roof venting locations from the attic where you can see the rafters and avoid placing roofing vents over them.

A key benefit of venting the attic is that the approach is the same regardless of how creative your architect got with the roof. Let owens corning roofing help you calculate exactly how much ventilation you will need for a healthy and balanced attic with our 4 step ventilation calculator. Federal housing authority recommends a minimum of at least 1 square foot of attic ventilation evenly split between intake and exhaust for every 300 square feet of attic floor space. Attic ventilation with dormers.