How Does Roof Vents Work

Roof ventilation works by allowing air to flow through the attic which prevents it from becoming overheated and causing moisture.

How does roof vents work.

The vent pipes also allow oxygen into the waste pipes. It is a vertical pipe attached to a drain line and runs through the roof of your home. 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 vents also keep the air pressure the same on both sides of the trap.

Static roof line vents are effective for ventilation but generally aren t recommended due to issues with leaks. Wind driven roof vents will pull more air from the attic but only when the wind is blowing. 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. Here are a few other reasons dependable construction recommends the lomanco whirlybird.

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. The vent pipes allow the sewer gases to escape to the outside rather than being released inside the house. Ventilation only works when air flows. It channels the exhaust gases to the vent and helps maintain proper atmospheric pressure in the waste system.

Hot air exhaust vents located at the peak of the roof allow hot air to escape. The vent stack is the pipe leading to the main roof vent. Most effective ventilation uses a ridge and soffit continuous ventilation system but even these designs can vary from roof to roof. Soffit vents may leave air trapped at the top of your 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. Flat roof vents have no moving parts to break or squeak but don t vent as much air as wind driven vents. Roof ventilation works to keep warm air and moisture out of the attic. 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.

Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. This enables bacteria to break down the sewage aerobically meaning by the use of oxygen. There are two primary methods to create air flow within an attic. The goal is to keep the attic space in your home dry and cool.