Roof Joist Baffles

As with attic floor insulation moisture and heat removal are the reasons for creating proper air.

Roof joist baffles.

Baffles establish a channel for air to circulate between the insulation and the roof sheathing. For the same reason insulation shouldn t touch the roof s underside. Each carton contains 10 vents. Step 2 in the bay.

By official fine homebuilding post an unanticipated problem was encountered check back soon and try again. Use it between rafters to create an air channel through insulation to help keep air flowing freely in your attic. The ado products durovent 23 1 2 in. For improved air circulation in the attic install the durovent 22 in.

The airflow from the soffits to the ridge vent keeps the roof cool and prevents ice dams and the material will block that flow. Staple plastic or foam baffles to the roof sheathing near the eaves to keep the material away. You will need a baffle for each space between the rafters. The ventilation system features polystyrene construction which is lightweight and moisture resistant and the integrated baffle means that you need no blocking material between the vent and the top plate.

Baffles should fit snugly between your rafters and extend from just over the vent at the wall plate up the rafter. Rafter baffles are sheets of plastic foam or cardboard that fit between the rafters in your attic to prevent moisture accumulation and add insulation to your home. It can be cut to fit most joist spaces and is an affordable way to meet energy code requirements for air flow. Make your own rigid foam roof vent baffles a simple cutting tool made with scraps of wood and a utility knife blade allows you to make baffles to put between your rafters for a better insulation job.

Pull any existing insulation away from the edges of the attic where you will be putting up the baffles.