Attic Ventilation Installation

Ventilation systems can be installed by handymen roofers and ventilation manufacturer installation professionals.

Attic ventilation installation.

Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. That said air resistance and interference such as vent grates reduces the area of true ventilation. 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.

How to install soffit vents make two parallel lines. Next bore a 3 4 or 1 in dia. A drip edge vent is made of a corrosive resistant material that sticks out about three inches back from the roof edge and then bends downward over them. You also want a fan that s appropriate for the square footage of your attic space by checking the manufacturer s specifications.

A licensed electrician can ensure that all aspects of your project will be completed correctly. You can also contact your local municipality to check on building code in your area. Hole through the soffit right between the lines and measure the. This way you don t have to cut a brand new hole but simply make the hole for the vent larger so it can accommodate the fan.

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. There are many factors that influence the overall cost of installing a home ventilation system and most are based on the system type. Required materials for this roof vent installation project attic insulation baffles roof cement roof vents roofing nails sheet metal screws soffit vents. Ventilation of attic spaces is required by most building codes as well as by roofing material manufacturers and the national roofing contractors association nrca.

In other words the entire vent opening doesn t count as vented space. Installing an attic ventilation fan will help protect the integrity of your home by reducing temperatures and humidity levels in your attic space by pushing hot air out of your home while drawing cool air into your attic. Start by using a chalk reel to snap two parallel lines down the center of the soffit. Drip edge vents are a two in one installation that promote water shedding at the eaves and rakes of a roof while also allowing for ventilation into the attic.