How Does Roof Vents Work

Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic.

How does roof vents work.

Here are a few other reasons dependable construction recommends the lomanco whirlybird. 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. Roof ventilation works by allowing air to flow through the attic which prevents it from becoming overheated and causing moisture. 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.

Roof ventilation works to keep warm air and moisture out of the attic. This will prevent black mold from growing in your attic keep your plywood from failing and help your shingles last as long as possible. Ventilation only works when air flows. Requires a power source.

Wind driven roof vents will pull more air from the attic but only when the wind is blowing. The vents also keep the air pressure the same on both sides of the trap. Most effective ventilation uses a ridge and soffit continuous ventilation system but even these designs can vary from roof to roof. 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.

Static roof line vents are effective for ventilation but generally aren t recommended due to issues with leaks. The goal is to keep the attic space in your home dry and cool. The vent pipes also allow oxygen into the waste pipes. It channels the exhaust gases to the vent and helps maintain proper atmospheric pressure in the waste system.

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. It is a vertical pipe attached to a drain line and runs through the roof of your home. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.

Soffit vents may leave air trapped at the top of your attic. Flat roof vents have no moving parts to break or squeak but don t vent as much air as wind driven vents. There are two primary methods to create air flow within an attic. 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.