Homemade Attic Insulation Baffles

They are known are also known as wind baffle insulation baffles rafter vents or venting chutes.

Homemade attic insulation baffles. Baffles establish a channel for air to circulate between the insulation and the roof sheathing. As with attic floor insulation moisture and heat removal are the reasons for creating proper air. Retrofit or new installation in retrofit situations the attic baffles may or may not already be installed. Start your measurement at the top of the vented area at the wall plate and.

For diy attic insulation you ve got two choices. Measure the distance between your rafters and between the rise. Loose fill or batt the common term for blanket insulation. Fit each one snuggly in the bay with the bottom starting where the ceiling joist meets the roof rafter.

The rigid foam is cut to be 2 inches wider than the space between rafters then 1 inch of foam is scored and folded over on either side of the foam creating standoffs that hold the foam away from the roof sheathing providing a space for air to flow. The secret is a homemade cutting jig that holds a utility knife blade. They are usually made from cardboard or rigid foam board or polyvinyl chloride. Both can be added to uninsulated attics or layered over existing material.

If they are present examine them and evaluate if any baffles need replacing. Foam attic baffles the two most common attic baffles are made of cardboard or foam. Pull any existing insulation away from the edges of the attic where you will be putting up the baffles. You will need a baffle for each space between the rafters.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. How to make rafter baffles. They are manufactured to fit either 16 inch or 24 inch.