How To Install Roof Baffles

Rafter vents come in 4 foot lengths and 14 1 2 and 22 1 2 inch widths for different rafter spacings.

How to install roof baffles.

Attic rafter vent baffles are essential for the health of your roof. Baffles are lightweight strips of aluminum or plastic that install on the underside of the roof deck between the rafters. Pull any existing insulation away from the edges of the attic where you will be putting up the baffles. They allow the fresh air to travel up under the roof to the ridge or gable vents keeping the roofing materials dried out and in good working order.

The baffles sole purpose is to keep insulation from blocking the airflow. Step 2 in the bay. Aside from providing storage space for holiday decorations and seasonal clothing attics serve a functional purpose in the ventilation of homes. You will need a baffle for each space between the rafters.

Without baffles you must keep vents clear of insulation which means. Soffit vents are the small metal or plastic grates you probably have seen under the eaves of houses. Staple the tabs of the baffle to the rafters and the wall plate spacing staples approximately 4 inches. Slide a baffle so it extends from the wall plate to the roof with the soffit vent behind it.

How to install baffles in an old attic. If your roof rafters have been covered over with drywall or plywood you will have to remove it in order to install the baffles. Installing baffles from a soffit vent and up the rafter bay allows you to insulate every available inch of attic floor space. Rafter vents should be placed in your attic ceiling in between the rafters at the point where your attic ceiling meets your attic floor.