Attic Air Flow Baffles

They can reduce roof deck temperature minimize ice dam issues and can help control attic moisture.

Attic air flow baffles. That means air can t flow from the soffit vents to the roof vents. For the same reason insulation shouldn t touch the roof s underside. In brief baffles are designed to provide a channel of air to flow through specific parts of your attic. The beauty of attic baffles is that they are available from most home improvement stores and can be installed simply with a few staples if you want the diy approach.

These specialty vents do not affect the. Use it between rafters to create an air channel through insulation to help keep air flowing freely in your attic. 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.

An attic with balanced ventilation has undereave or soffit vents which allow fresh air into the attic. That airflow is intended to churn the stale air in your attic which helps to remove moisture and control the temperature of your attic. They are known are also known as wind baffle insulation baffles rafter vents or venting chutes. 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.

Rafter vents or insulation baffles install in any rafter space to create narrow gaps that direct fresh air from the soffit vents to the peak of the roof. It can be cut to fit most joist spaces and is an affordable way to meet energy code requirements for air flow. Attic baffles how they work. Baffles provide a channel for air to flow through certain parts of the attic.

The picture below courtesy of the epa indoor airplus program which we provide builder verification services for helps show how the system works. 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. If your attic is well insulated the insulation might be plugging the spaces between rafters just above exterior walls. They also keep insulation from falling into and clogging up the eaves.

Product overview for improved air circulation in the attic install the durovent 22 in. They are usually made from cardboard or rigid foam board or polyvinyl chloride. Baffles are available at home centers. The fresh air flows up between rafters to the ridge where a ridge vent roof vents or gable vents allow the air to exit.

From left to right air flows through the soffit vents up over the baffles allowing for the required roof venting. Baffles are also called wind baffles venting chutes rafter vents or insulation baffles.