Roof Gable Ventilation

A gable vent is a slotted piece of wood or siding that s installed into the side of a home near the gable where two roof pitches meet in a triangle.

Roof gable ventilation.

As established gable vents are vents that are specifically designed to fit the slope and angles that accompany gable roofs. A ridge vent is a ventilation strip that is placed along the ridgeline of the home. The benefits are obtained not only by saving money but also by protecting the health and 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.

Gable vents are installed in the vertical walls at the gables ends. By having the gable vent you get some sort of turbulence up there that interrupts that flow. Without baffles blinders that prevent outside air from crossing over the vent a ridge vent may create almost no ventilation at all. The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available.

If you re not going to have a soffit vent frankly it really doesn t matter because you re not going to have the pattern that we would like you to have and you just have another hole in the space to let air out. When used in conjunction with soffit vents they serve as exhaust vents. They can be located at the gable peak or somewhere in the field of the gable wall figure 8. It is important that air movement occurs and is not impeded by any framing members of the.

They are typically installed on the outside of a gable attic area allowing for more circulation of air into and out of that room in particular. One often sees gable vents that are small in size and clearly won t provide adequate nfva. These vents allow for a cross breeze through your attic blowing out the warm air and replacing it with cooler less humid air. So if you can have a soffit vent and a ridge vent that s the best situation.

Gable vents can function as both intake and exhaust but rely on strong winds to be effective so they are recommended to be used in conjunction with additional intake soffit vents near the bottom of the roof.