Attic Ventilation Installation

To save time use an existing roof or gable vent to install your new attic fan.

Attic ventilation installation.

Hole through the soffit right between the lines and measure the. Start by using a chalk reel to snap two parallel lines down the center of the soffit. There are many factors that influence the overall cost of installing a home ventilation system and most are based on the system type. Hot air exhaust vents located at the peak of the roof allow hot air to escape.

Intake vents located at the lowest part of the roof under the eaves allow cool air to enter the attic. 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. You also want a fan that s appropriate for the square footage of your attic space by checking the manufacturer s specifications.

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

Ventilation systems can be installed by handymen roofers and ventilation manufacturer installation professionals. 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. A licensed electrician can ensure that all aspects of your project will be completed correctly. Required materials for this roof vent installation project attic insulation baffles roof cement roof vents roofing nails sheet metal screws soffit vents.

Most building codes require a ratio of 1 150 ventilation space to attic floor space. Connect the two cuts. 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. Next bore a 3 4 or 1 in dia.