Roof Backdraft Damper

The famco bkp bath fan kitchen exhaust roof vent painted come in sizes.

Roof backdraft damper.

The attractive broan 634m roof cap is the perfect finish for your ventilation system. This roof cap maximizes the air and sound performance of your broan nutone ventilation fan or range hood. 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.

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. Backdraft dampers are a highly versatile feature in household ventilation. The bird screen stops unwanted visitors from gaining entry. The vent motor of the damper is a great feature for improving household ventilation.

Quality constructed in 28 gauge pre painted galvanized steel in black or brown. 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. 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. 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.

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. 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. The built in back draft damper eliminates cold air from entering the home. These dampers can also help ventilate an attic chimney laundry room furnace room or any space that doesn t receive adequate airflow.

And can be installed in either a horizontal or vertical position with minimal leakage. A backdraft damper is used on heat exchangers exhaust systems solar heating systems. They effectively keep cold air outside from infiltrating the house particularly during cold weather. Round duct roof cap with manufactured steel housing and black electrically bonded epoxy finish.

It includes a built in backdraft damper and bird screen provide a dependable roof cap you can rely on. 4 inch 5 inch 6 inch 8 inch and 10 inch. This large selection offers wall mount and roof mount backdraft dampers. These dampers can be used for horizontal or vertical mount applications.

The footprint measures 18 75 x 14 25 for a well balanced fit. A backdraft damper or isolation damper from grainger helps to allow airflow in one direction and prevent reverse airflow. Cons of backdraft dampers.