The KV-4-TP is the Keepa Roof Jack with a 4 inch inner diameter and 11 inch tall collar. In addition, it also has a 2 inch tailpipe that can be used for duct ventilation. It is mainly used to ventilating bathroom fans and range hoods. It allows for maximum air flow while alleviating back pressure.
The Keepa Roof Jack is engineered to stop insects and wildlife from entering the duct. It is also designed to prevent rain or snow from entering in all US climate zones. The Keepa’s 11 inch tall collar height is great for low slope or flat roofs. These vents have an all-aluminum construction. To clarify, this means they are durable, lightweight, and will not rust.
The Roof Jack’s tail pipe is approximately 2 inches long and is corrugated at the bottom to fit existing duct work. This allows for a quick and easy installation. In addition, the head of the Keepa Vent is removable, therefore allowing easy access for maintenance to the duct below.
The Keepa Roof Jack is best used for ventilating low slope or flat roofs. Likewise it is typically used for ventilating ducted roofing systems. The vent head is removable therefore allowing easy installation on EPDM, TPO or PVE roofs. In addition, this attic vent is compatible with membrane roofs.
In addition, the round design is aerodynamic to withstand wind speeds up to 200 mph. Most importantly, the Keepa Attic Vent comes in an array of sizes with optional curb mount flange for additional clearance or flat flange.