Attic Air Flow Baffles

Water is insulation s enemy.

Attic air flow baffles.

Baffles are also called wind baffles venting chutes rafter vents or insulation baffles. Baffles are available at home centers. It can be cut to fit most joist spaces and is an affordable way to meet energy code requirements for air flow. 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.

Item 1571672 model xudv2248. The picture below courtesy of the epa indoor airplus program which we provide builder verification services for helps show how the system works. That airflow is intended to churn the stale air in. It creates a breeding ground for mold and mildew and ruins the air trapping pockets that block heat flow.

It can be cut to fit most joist spaces and is an affordable way to meet energy code requirements for air flow. Intake vents located at the lowest part of the roof under the eaves allow cool. Surprisingly even the most well insulated attic space may still require the assistance of attic baffles to provide the additional air circulation. The solution is to add baffles which allow air to flow past the insulation photo 9.

Look for water stains on the roof sheathing or damp or moldy spots on attic joists and existing insulation as a clue to where leaks might be. If your attic is well insulated the insulation might be plugging the spaces between rafters just above exterior walls. Durovent durovent 22 in x48 in raft vent 10 pack. For improved air circulation in the attic install the durovent 22 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. Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents. Box out light fixtures. 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.

Baffles are a critical component to our attic insulation process that provides multiple benefits to a difficult construction aspect. That means air can t flow from the soffit vents to the roof vents. Baffles provide a channel for air to flow through certain parts of the attic.