Attic Baffles Requirements

Measure your attic s square footage.

Attic baffles requirements.

For loose fill read labels. That means drawing air in from outside the home and allowing it to push through the attic. You will need a baffle for each space between the rafters. Baffles are a critical component to our attic insulation process that provides multiple benefits to a difficult construction aspect.

The main function of an attic baffle is to draw the air in from outside your home and allowing it to circulate around your attic. The picture below courtesy of the epa indoor airplus program which we provide builder verification services for helps show how the system works. Of total vent space needed. Attic baffles how they work.

Ado products durovent 23 1 2 in. Fit each one snuggly in the bay with the bottom starting where the ceiling joist meets the roof rafter. Rafter vents or insulation baffles install in any rafter space. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.

Ft divided by 150 equals 10 sq. A 50 x 30 attic would have a total area of 1 500 sq. For batts or rolls calculate the number based on the width and length of the product you re using. Length x width of attic in feet 150 total sq.

Attic ventilation system with built in baffle 10 per carton 4 4 out of 5 stars 3 accuvent 14 5 x 50 16 o c flame retardant pvc high energy vent 50 pack acbp18429. Calculate the total vent area needed. An attic baffle is simply an item to regulate the flow of air aka required roof venting and impede it the insulation from interfering with each other. Surprisingly even the most well insulated attic space may still require the assistance of attic baffles to provide the additional air circulation.

You can situate the baffles where the circulation is mainly required. While it may seem counterintuitive even well insulated attic spaces require air circulation. Pull any existing insulation away from the edges of the attic where you will be putting up the baffles. Basic functions of baffles baffles are chutes that when installed properly can provide a channel for air to flow from your exterior soffit vents up into your attic space.