Here s how to keep the air moving with soffit vents.
Attic too small get soffit vents.
It prevents mildew growth and rot on your roof s framing and sheathing by.
Touch your ceiling on a warm sunny day.
Talk to your local home improvement store or a professional contractor and get to improving your attic ventilation as soon as possible.
Is this too much ventilation.
I live in north carolina.
Of vent for every 300 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.
Add soffit venting first.
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.
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 well ventilated attic offers four benefits.
This is called passive ventilation.
These vents allow outside air to enter the attic at the lowest point of the roof along the underside of the eave.
Look at your eaves and roof.
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.
In order to facilitate this exchange of warm and cool air the general rule of thumb suggests installing at least 1 sq.
So if your attic is 1 500 sq.
A hot ceiling tells you that the attic is acting like a solar oven.
Here are four signs of an unventilated or under ventilated attic.
They re most effective when used in conjunction with a continuous ridge vent.
In other words the entire vent opening doesn t count as vented space.
Soffit vents come in several sizes and styles including small round discs and rectangular grilles.
Butt a cardboard template against the fascia and mark your soffit hole locations to begin.
If you don t see any attic vents on the roof or in the eaves you need to add some.
Ft you divide that by 150 to get 10 sq.
Building codes vary.
Of vent space for every 150 sq.
This is one home improvement task that is well worth undertaking.
Also should the vents to the crawl space.
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.