Attic Insulation Air Baffles

Rafter vent with built in baffle helps keep air moving in your attic.

Attic insulation air baffles.

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. An attic with balanced ventilation has undereave or soffit vents which allow fresh air into the attic. For diy attic insulation you ve got two choices. Typically made from polyvinyl.

Ado products durovent 23 1 2 in. 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. Sometimes called rafter vents baffles provide ventilation and keep the insulation from blocking airflow through your attic. 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.

The fresh air flows up between rafters to the ridge where a ridge vent roof vents or gable vents allow the air to exit. The picture below courtesy of the epa indoor airplus program which we provide builder verification services for helps show how the system works. Putting baffles in your attic is a crucial step in installing attic insulation. Use it between rafters to create an air channel through insulation to help keep air flowing freely in your attic.

For improved air circulation in the attic install the durovent 22 in. It can be cut to fit most joist spaces and is an affordable way to meet energy code requirements for air flow. Baffles are a critical component to our attic insulation process that provides multiple benefits to a difficult construction aspect. Both can be added to uninsulated attics or layered over existing material.

Baffles provide a channel for air to flow through certain parts of the attic. They are usually made from cardboard or rigid foam board or polyvinyl chloride. 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 are also called wind baffles venting chutes rafter vents or insulation baffles.

Once you ve decided which type is best for you examine the material options and prices to home in on the right product. Loose fill or batt the common term for blanket insulation. Attic baffles how they work.