Venting Dormer Attics

But before you cut any holes plan the locations of the attic vents.

Venting dormer attics.

These fans may be controlled by a switch or a thermostat which detects heat build up in the attic space and automatically exhausts the attic space. 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. 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.

Low profile dormers are often called eyebrow 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. Important for proper cooling of the attic dormer vents are a common entry point for embers. Calculate or enter the square footage of the attic or area to be vented.

Whole house fans powered attic fans. Photos 1 6 show how it s done. Power gable vent shutter is designed to be used with master flow egv pg series electric gable fans. 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.

Our half round dormer vents are attractive long lasting and fire resistant. 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. 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. Power gable vent shutter is automatic 20 in.

In mixed climates ventilation serves either role depending on the season. 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. It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters. The shutter will open when the electric gable vent is operating.

Half round dormers like the one below often are often called round dormers. Attic ventilation with dormers. Mark the roof venting locations from the attic where you can see the rafters and avoid placing roofing vents over them. Adding attic vents is a simple matter of cutting holes and installing vents.