How Roof Vents Work

A few common types of vents used in roof ventilation systems include static vents ridge vents and gable vents.

How roof vents work.

Wind driven roof vents will pull more air from the attic but only when the wind is blowing. Ridge vents run along the peak of a roof. Flat roof vents have no moving parts to break or squeak but don t vent as much air as wind driven vents. Mark attic roof air vent locations.

While hardly anybody agrees on the best roof ventilation system everybody agrees some roof vents do hardly any good at all. If you were to install about 40 feet of roof ridge vent the area would span up to 10 turbines in this case 10 turbines would cost you substantially more to purchase and install. Drive nails up through the sheathing and shingles to mark roof air vent locations. What kinds of roof vents are used.

But the ridge vent maintenance and running cost is a lot less than for turbines when. That means you have a lower risk of mold or mildew development. You will also discover that this product can work by itself to release moisture from the house which is especially useful during the winter months. The majority of roofing experts agree that ridge vents are the most effective and cost effective roof vents available.

Why roof ventilation doesn t work specifically for cooling your home down. Roof vents will provide about half of the vent area and soffit vents the other half. Roof louvers gable louvers wind turbines and power attic ventilators are all visible exhaust vents that are mounted on the outside of your roof. Take for example ridge vents.

However if you were only going to install 3 or 4 the turbines would be more affordable to you. From the roof s peak. Taking advantage of this natural process referred to as passive ventilation is the most common way to vent an attic. I have roof vents so i have roof ventilation.

Static vents come in a variety of different styles and sizes but are all non motorized vents installed near the roof ridge to allow for unobstructed flow of air from the attic. Center nails between rafters 18 in. Like ridge vents roof louvers and gable louvers work without the use of electricity. Roof ridge vents do work well when there are soffit vents or box vents that help to draw air into the attic.

Static vents are horizontal openings basically vent covered holes in the roof that allow air movement to take place. Non powered roof ventilation can move an almost insignificant amount of air. How to install roof vents. Hot air exhaust vents located at the peak of the roof allow hot air to escape.

What are the cons.