Box is 27 in. Wide x 27 in. Long x 12 in. High Aluminum Roof Curb

A roof curb is a box that acts as an extension from the roof deck. This extension provides a platform to mount a roof vent or exhaust fan. Proper installation ensures that the accessory has a level platform for attachment. Roof curbs can also work as a hatch, allowing easy access to duc2rk, HVAC units or maintenance in the attic below. Active Ventilation Products’ prefabricated roof curbs are for flat or low slope membrane roofs.”,”highlights”:[“Preassembled roof curb will reduce installation time”,”Roof curb is made of corrosion resistant aluminum”,”12 in. tall, 27 in. x 27 in. wide, and 25 in. dia. opening”