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.
- A metal box manufactured for roof vents or attic fans
- For EPDM, PVC and TPO membrane roofs
- Can be used to access the attic or plenum below
- Aluminum will not rust like steel or rot like wood
- 5-year warranty

























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