This Roof Curb Cap will fit over existing roof curbs with an outer diameter of 8.5 x 8.5 inches. The top of the cap is a solid sheet of aluminum that will protect the opening of the roof curb. It covers the top of the roof curb when there is no vent or fan installed. It keeps out precipitation and wildlife from entering the attic.
A Roof Curb is a metal frame that acts as a platform for mounting a roof vent or fan. As a result, this platform will provide additional height allowing for installation in all climate zones. When a roof vent is not currently on the roof curb, the Cap will protect the opening from outside elements.
Building heavy wooden curbs can cause damage to the roofing membrane. Instead, eliminate the possibility of damage by buying AVP's prefabricated ones.