Improve Attic Ventilation

Rectangular soffit vents are.

Improve attic ventilation.

Ways to improve attic ventilation installing attic vents is a quick and effective answer to the attic ventilation issue. Your actual living space is sealed. If there are asphalt shingles on your roof the attic must be ventilated to comply with the terms of the. These improve attic ventilation by creating a draft of air coming into the attic from outside at the lowest possible location on the roof.

How you can improve your attic ventilation the u s. Touch your ceiling on a warm sunny day. Don t avoid ventilating your attic for fear you re letting cold air into the house. Intake vents are typically found along the soffit of the house which is the horizontal wood surface under the eaves.

Federal housing administration recommends a minimum of at least one square foot of attic ventilation split evenly between intake and exhaust for every 300 square feet of attic floor space. Hot air exhaust vents located at the peak of the roof allow hot air to escape. Most building codes require a ratio of 1 150 ventilation space to attic floor space. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.

You can also contact your local municipality to check on building code in your area. Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. This allows for a continuous flow of air through the space. Here are four signs of an unventilated or under ventilated attic.

Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca. It extends the life of your shingles by keeping the roof cooler in hot weather. This 1 300 rule is general and may not apply to all buildings. Look at your eaves and roof.

It helps prevent ice dams in winter by keeping your roof colder. If you don t see any attic vents on the roof or in the eaves you need to add some. More is not necessarily. Obviously more research is needed but here s what we do know.

Effective ventilation in an unfinished attic usually includes intake vents down low along the soffits and exhaust vents up high at the peak or roof ridge.