Indoor/Outdoor Roof Exhaust IOR

Our indoor/outdoor roof exhaust requires a 30"x30" opening in the roof. It is supplied with a fully assembled indoor/outdoor air powered damper, 30"x30" exhaust duct, roof flashing (flat or pitched), and a stack cap. The damper can be closed entirely to prevent outdoor exhaust, or opened to allow as much as 30% exhaust. This option can be equipped on any Clean Shop prep station.