How Does Roof Vents Work

Here are a few other reasons dependable construction recommends the lomanco whirlybird.

How does roof vents work.

The vents also keep the air pressure the same on both sides of the trap. This will prevent black mold from growing in your attic keep your plywood from failing and help your shingles last as long as possible. All things being equal wind driven turbine vents also known as a whirlybird roof vent do move more air than flat vents but only when the wind blows. These attic vents let out hot air like other types of vents but when the wind blows it pumps out even more hot air and this happens without using and electricity like a power attic fan.

It is a vertical pipe attached to a drain line and runs through the roof of your home. The vent pipes also allow oxygen into the waste pipes. Flat roof vents have no moving parts to break or squeak but don t vent as much air as wind driven vents. Requires a power source.

Hot air exhaust vents located at the peak of the roof allow hot air to escape. Soffit vents may leave air trapped at the top of your attic. Ventilation only works when air flows. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.

A drip edge vent is made of a corrosive resistant material that sticks out about three inches back from the roof edge and then bends downward over them. Drip edge vents are a two in one installation that promote water shedding at the eaves and rakes of a roof while also allowing for ventilation into the attic. The vent pipes allow the sewer gases to escape to the outside rather than being released inside the house. Wind driven roof vents will pull more air from the attic but only when the wind is blowing.

A roof ventilation system works by providing a continual flow of air through the attic space helping remove overheated air and moisture from the attic and roof system and reduce the impact of changing temperatures and moisture conditions both inside and outside the home. The vent stack is the pipe leading to the main roof vent. This enables bacteria to break down the sewage aerobically meaning by the use of oxygen. Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic.

The goal is to keep the attic space in your home dry and cool. Most effective ventilation uses a ridge and soffit continuous ventilation system but even these designs can vary from roof to roof. Roof ventilation works by allowing air to flow through the attic which prevents it from becoming overheated and causing moisture. Static roof line vents are effective for ventilation but generally aren t recommended due to issues with leaks.