Square Roof Curb 51" Square x 18" High, Model SRC-48-H18
This roof curb is 51" long by 51" wide and 18" high and is only compatible with roof vents or fans that have a curb mount flange measuring 51.5 inches square. Active Ventilation Products' prefabricated roof curbs are for flat or low-slope membrane roofs.
A roof curb is a metal box that acts as a base for a roof vent or fan. Roof curbs can also work as a hatch, allowing easy access to ductwork, HVAC units, or maintenance in the attic below.
Traditionally, roofers build wooden roof curbs on the roof at the time of the membrane installation. However, building wooden curbs can cause damage to the roof membrane. This happens because of the cutting of lumber, as well as loose nails or screws that end up getting walked on by the crew. Using prefabricated aluminum roof curbs eliminates the need to build wooden boxes and reduces the chance of damaging the roof.
This roof curb is aluminum alloy 3003-H14 with a 0.040" thickness (± 0.005”).
An important safety feature is that aluminum curbs are not flammable like wooden roof curbs. Most roof curbs vent out heat from range hoods or HVAC units. This heat can cause wooden curbs to burn. However, aluminum will not burn, rust, or corrode. Aluminum curbs are safer and easier to weld onto.
Installation of this roof curb is for EPDM, PVC, and TPO roof membranes
The flashing on the roof curb allows fasteners to attach the curb to the roof securely. Once placed, it is to be covered with roofing material for a watertight seal.
AVP offers roof curbs in various sizes and with the option to be insulated.
The curb mount flange, vent, and fan lines are ready to install on AVP's roof curbs. This includes Aura Vents, Pop Vents, and Round Back Vents as well as Attic Fans and Aura Solar Fans for powered ventilation.
For any questions, please email the sales team at sales@roofvents.com or call 845-565-7770
