Venting Dormer Attics

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.

Venting dormer attics.

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. The shutter will open when the electric gable vent is operating. In mixed climates ventilation serves either role depending on the season. 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.

Important for proper cooling of the attic dormer vents are a common entry point for embers. Half round dormers like the one below often are often called round dormers. 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. Calculate or enter the square footage of the attic or area to be vented.

Attic ventilation with dormers. Whole house fans powered attic fans. A key benefit of venting the attic is that the approach is the same regardless of how creative your architect got with the roof. 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.

Photos 1 6 show how it s done. Low profile dormers are often called eyebrow vents. Our half round dormer vents are attractive long lasting and fire resistant. Mark the roof venting locations from the attic where you can see the rafters and avoid placing roofing vents over them.

Power gable vent shutter is automatic 20 in. Constructed of white aluminum that can be painted. Adding attic vents is a simple matter of cutting holes and installing vents. But before you cut any holes plan the locations of the attic vents.

The dormers are what i call face dormers in that they don t have any vertical side walls but just share the face wall with the side of the. 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. 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. Because the roof isn t in play here it doesn t matter how many hips valleys dormers or gables there are.