Roof Backdraft Damper

The attractive broan 634m roof cap is the perfect finish for your ventilation system.

Roof backdraft damper.

A backdraft damper or isolation damper from grainger helps to allow airflow in one direction and prevent reverse airflow. A backdraft damper also known as a gravity damper is a piece of equipment that allows air to flow through in one direction while preventing air from entering the opposite side also known as a backdraft. The built in back draft damper eliminates cold air from entering the home. The built in back draft damper eliminates cold air from entering the home.

The bird screen stops unwanted visitors from gaining entry. The bird screen stops unwanted visitors from gaining entry. This large selection offers wall mount and roof mount backdraft dampers. Damper trays allows dampers to be mounted inside standard gpi and gpf roof curbs.