4 inch diameter Aluminum Keepa Roof Jack Vent Cap with Tail Pipe in White

Description

Our Keepa Roof Jack is to be used in conjunction with bathroom fans or where ever exhaust vent protection is needed for a ducted system.
The Keepa Roof Jack is an excellent choice for venting out air from a ducted system is because of the aerodynamic shape and louvered design. It allows for maximum air to flow while alleviating back pressure.
Engineered to prohibit insects or vermin from entering the duct, the Keepa Vent is also engineered to stop rain or snow from entering in all US climate zones. The Keepa’s standard 11 inch collar height is great for low slope membrane roofs that need ducted exhaust ventilation. These vents have an all-aluminum construction, which means they are durable, lightweight, and WILL NOT RUST! The Keepa Vent is UL tested and certified to meet or exceed most building code standards including California Fire Code.
The Keepa Roof Jack’s tail pipe (adapter) is approximately 2 inches in length and is corrugated at the bottom to fit existing duct work, which makes for a quick and easy installation. Also, the head of the Keepa Vent is removable, which also makes the vents installation on to the roof fast and easy adding membrane/ roofing material over the base flange and collar.
Tail pipe fits existing ductwork; 2 in. clearance between bottom of vent cap and flange
Mill finish aluminum will continually have a long lasting clean appearance
Net free air space, 12 sq. in. (0.09 sq. ft.)
Pitch capacity: 0/12 to 12/12
1/8th in. opening between the louver blades and all aluminum (non-combustible) material meets the requirements of California building code 706A.2 vents to resist the intrusion of burning embers and flame through ventilation openings