Attic Too Small Get Soffit Vents

Is this too much ventilation.

Attic too small get soffit vents.

If your home is fitted solely with small gable end vents or a ventilator high in the roof you might want to consider adding soffit vents to increase airflow. If you re lacking good attic ventilation installing a soffit vent where needed is a no brainer. A hot ceiling tells you that the attic is acting like a solar oven. Touch your ceiling on a warm sunny day.

My house has soffit vents on the eaves gable vents on each end of the house and a ridge vent. In order to facilitate this exchange of warm and cool air the general rule of thumb suggests installing at least 1 sq. A well ventilated attic offers four benefits. It prevents mildew growth and rot on your roof s framing and sheathing by.

This creates a natural air flow by drawing in the air from outside pushing it up and out through the vent at the top of the house. These vents allow outside air to enter the attic at the lowest point of the roof along the underside of the eave. That said air resistance and interference such as vent grates reduces the area of true ventilation. In other words the entire vent opening doesn t count as vented space.

This is called passive ventilation. Of vent space for every 150 sq. Look at your eaves and roof. Here are four signs of an unventilated or under ventilated attic.

Add soffit venting first. Building codes vary. The rule of thumb on the amount of vent space needed is approximately 1 sq. If you don t see any attic vents on the roof or in the eaves you need to add some.

Here s how to keep the air moving with soffit vents. Generally speaking you need a ratio of 1 300 where for every 300 square feet of ceiling space you need 1 square foot of attic ventilation. Also should the vents to the crawl space. They re most effective when used in conjunction with a continuous ridge vent.

Soffit vents come in several sizes and styles including small round discs and rectangular grilles. Ft you divide that by 150 to get 10 sq. The most common way to add ventilation to an attic is by installing air intakes in the soffits and putting an outlet at the gable of the house. I live in north carolina.

Of vent for every 300 sq. If the attic ventilation system is not a balanced combination of intake vents installed in the soffit under eave or at the roof s bottom edge and exhaust vents installed at or near the roof s peak the attic ventilation system will not be efficient and effective. Talk to your local home improvement store or a professional contractor and get to improving your attic ventilation as soon as possible.