Fixing on the roof with flanges in the bottom with subsequent extra insulation. The fan is attached to the roof frame with bolts.
Mounting frames in standard modifications. The casing is made of galvanized steel. Specially designed flanges on the frame bottom enable easy and reliable mounting on the roof. The casing has threaded openings for fastening of the fan with bolts. Size 630–1100 is equipped with a detachable bolted panel for mounting facilitation.