Roof Backdraft Damper

It includes a built in backdraft damper and bird screen provide a dependable roof cap you can rely on.

Roof backdraft damper. The bird screen stops unwanted visitors from gaining entry. Round duct roof cap with manufactured steel housing and black electrically bonded epoxy finish. This large selection offers wall mount and roof mount backdraft dampers. A backdraft damper or isolation damper from grainger helps to allow airflow in one direction and prevent reverse airflow.

The vent motor of the damper is a great feature for improving household ventilation. 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. It s designed to fit with a 6 round duct for flexible installation. These dampers can be used for horizontal or vertical mount applications.

The built in back draft damper eliminates cold air from entering the home. This sealant strip is installed to keep cold air from coming in and according to a broan customer service rep it also helps to prevent unbearable metal on metal chatter. If cooking odors become unbearable or household air gets stifling simply adjust the. Backdraft dampers are a highly versatile feature in household ventilation.

And can be installed in either a horizontal or vertical position with minimal leakage. These dampers can also help ventilate an attic chimney laundry room furnace room or any space that doesn t receive adequate airflow. The primary application is to prevent undesirable reverse airflow when installed with roof or sidewall supply intake fans. The footprint measures 18 75 x 14 25 for a well balanced fit.

The attractive broan 634m roof cap is the perfect finish for your ventilation system. Wd 200 series dampers are electric motorized backdraft dampers that open when energized and spring return close when de energized. 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 mounted vent comes with a damper to prevent back draft and with an insect screen. 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. Cons of backdraft dampers. 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.

4 inch 5 inch 6 inch 8 inch and 10 inch. This roof cap maximizes the air and sound performance of your broan nutone ventilation fan or range hood. They effectively keep cold air outside from infiltrating the house particularly during cold weather.