For mounting flat on the roof, there is no need to build a curb with the Broan 612CM Roof Cap with built-in curb. Made of 0.025 in. aluminum with a natural finish, it includes a built-in bird screen. Can be used with up to 12 in. round ducts.
- Compatible with most 12 in. round ducts
- Built-in bird screen to help protect your ducts from animal entry
- Aluminum construction provides longevity
- Helps vent air from your range hood to the outdoors for improved air circulation