Flat Roof Exhaust Fan Cap

Compatible with either a 3 in.

Flat roof exhaust fan cap.

Select the broan 636 roof cap to provide reliable rooftop ventilation. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. Vent your bath and kitchen exhaust fans through the roof through a special roof hood. Zephyr 7 inch round low profile roof mounted exhaust cap with mesh bird screen.

Broan nutone roof cap in natural aluminum finish 3 1 4 inch x 10 inch or up to 8 inch round duct. Both roof jack vent caps are ideal for ventilating bathroom fans and range hoods alike. Flat roof ventilation should be accomplished when you have equal amounts of air exhaust with air intake. Venting through a roof vent or exhausting them in the attic could cause moisture problems and rot.

Features a black enamel finish and is designed for use with 3 in. Available in 1 finish. Two nylon zip ties are included. Not recommended for dryer venting.

Each features a black steel roof cap with a built in back draft damper and bird screen. Pitched roof insulation flat fan vent. The round back roof jack vent cap is made for pitched or steep sloped roofs while the keepa roof jack vent cap is designed for flat or low sloped roofs. Having both will enable the cavity to breathe with cross ventilation.

Broan 8 round duct aluminum roof cap for flat roof installation. Available in 1 finish 1 from. About one third of the fans that are supposed to be exhausting through the roof are exhausting to a cap with a backdraft damper that is stuck closed which causes a good portion of the warm moist air to exhaust in to the attic space pictured above. Continental fan manufacturing 6 round duct roof cap for axc and ext fan systems.

Roof vents 101 install for proper attic. Includes a built in back draft damper and protective bird screen to prevent small pests from entering duct. Designed for 3 and 4 ductwork these roof cap vent kits help vent heat moisture and odors from bathrooms showers and recreation rooms. Available in 1.

Roof vents need to be built tall for flat roofs because flat roofs drain water poorly and slowly compared to steep sloped roofs.