Roof Backdraft Damper

The bird screen stops unwanted visitors from gaining entry.

Roof backdraft damper.

The attractive broan 634m roof cap is the perfect finish for your ventilation system. Damper trays allows dampers to be mounted inside standard gpi and gpf roof curbs. 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. A backdraft damper or isolation damper from grainger helps to allow airflow in one direction and prevent reverse airflow.

The built in back draft damper eliminates cold air from entering the home. Round duct roof cap with manufactured steel housing and black electrically bonded epoxy finish built in back draft damper prevents cold air from blowing back into the home. The built in back draft damper eliminates cold air from entering the home. A backdraft damper or isolation damper from grainger helps to allow airflow in one direction and prevent reverse airflow.