How To Ventilate Attic Soffits

Your roof vents may not look.

How to ventilate attic soffits.

Start by using a chalk reel to snap two parallel lines down the center of the soffit. Most building codes require a ratio of 1 150 ventilation space to attic floor space. When hot air rises up through the soffit venting it then keeps rising all the way up to the ridge vent. Space soffit vents evenly around the bottom of the low sides of your roof.

Touch your ceiling on a warm sunny day. 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. The main idea of the ridge vent is to act together with soffit venting to properly ventilate the attic. A sign of roof leaks from ice damming or other causes.

Ventilation can be accomplished using various products and techniques. Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. For example a vent with a 6 x12 opening would equal 0 5 sq. Connect the two cuts.

If you have either ice dams or moisture buildup improve your attic ventilation. This is called passive ventilation. 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. Hole through the soffit right between the lines and measure the.

Look at your eaves and roof. Hot air exhaust vents located at the peak of the roof allow hot air to escape. If you don t see any attic vents on the roof or in the eaves you need to add some. How to install soffit vents make two parallel lines.

Divide the vent area by the opening in each vent to come up with the number of vents needed. Next bore a 3 4 or 1 in dia. Drip edge vents hang out several inches past the edges of the roof allowing you to trim. A hot ceiling tells you that the attic is acting like a solar oven raising your cooling bills and.

Begin by making sure your existing system works photos 1 and 3 plugging major air leaks into the attic photo 2 and correcting any other of the common causes of poor attic venting.