How To Ventilate An Attic

These rely on the wind to keep it moving.

How to ventilate an attic.

Most building codes require a ratio of 1 150 ventilation space to attic floor space. When it moves it causes a draw in the attic space to help remove heat. Look at your eaves and roof. You re probably familiar with the round ones that spin.

For this kind of system you need soffit vents and ridge vents. Ventilation can be accomplished using various products and techniques. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Here are four signs of an unventilated or under ventilated attic.

Intake vents which are located at the down slope edge of the roof aka eave s and allow fresh air into the 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. If you don t see any attic vents on the roof or in the eaves you need to add some. These are not bad for ventilation.

The best form of attic ventilation for your home is a balanced system where the intake vents are separate from the exhaust vents. To properly ventilate an attic two types of vents are needed. Soffit vents are intake vents located under the outside eaves of your home. Touch your ceiling on a warm sunny day.

We call those whirlybirds or turbine ventilators. Hot air exhaust vents located at the peak of the roof allow hot air to escape.