Roof Backdraft Damper

A backdraft damper or isolation damper from grainger helps to allow airflow in one direction and prevent reverse airflow.

Roof backdraft damper.

This roof mounted vent comes with a damper to prevent back draft and with an insect screen. If cooking odors become unbearable or household air gets stifling simply adjust the. The famco bkp bath fan kitchen exhaust roof vent painted come in sizes. Most roof caps for bath fan exhausts have a light aluminum backdraft damper which rests on a sealant strip which is basically a foam piece of weatherstripping.

This roof cap maximizes the air and sound performance of your broan nutone ventilation fan or range hood. The backdraft damper is unique in that when air flows out of it gravity is the only source by which the backdraft damper closes and prevents contaminated air to filter back through. Although a backdraft damper is useful in keeping cold air outside during the winter the damper doesn t allow for control to prevent cold air from escaping during the warmer months. The bird screen stops unwanted visitors from gaining entry.

The vent motor of the damper is a great feature for improving household ventilation. This large selection offers wall mount and roof mount backdraft dampers. These dampers can be used for horizontal or vertical mount applications. And can be installed in either a horizontal or vertical position with minimal leakage.

It s designed to fit with a 6 round duct for flexible installation. Choose the mounting style and size that will fit your roof exhaust needs when you shop for an isolation damper or backdraft damper from grainger today. 4 inch 5 inch 6 inch 8 inch and 10 inch. Wd 200 series dampers are electric motorized backdraft dampers that open when energized and spring return close when de energized.

Backdraft dampers are a highly versatile feature in household ventilation. Cons of backdraft dampers. It includes a built in backdraft damper and bird screen provide a dependable roof cap you can rely on. The built in back draft damper eliminates cold air from entering the home.

A backdraft damper is used on heat exchangers exhaust systems solar heating systems. Quality constructed in 28 gauge pre painted galvanized steel in black or brown. Round duct roof cap with manufactured steel housing and black electrically bonded epoxy finish. The primary application is to prevent undesirable reverse airflow when installed with roof or sidewall supply intake fans.

These dampers can also help ventilate an attic chimney laundry room furnace room or any space that doesn t receive adequate airflow. Broan nutone steel roof cap for 6 inch round duct with backdraft damper and bird screen black write a review questions answers the attractive broan 634m roof cap is the perfect finish for your ventilation system. The footprint measures 18 75 x 14 25 for a well balanced fit.