Rectangular roof hood intended for outdoor air and extract air. HRR is designed for positioning above the outer roof on the roof through connection.
The air runs both on the top- and downside of the hood. This is valid both for outdoor and extract air. The hood is free-draining downwards.
Can also be supplied with a pest-proof mesh.
HRR is manufactured as standard from galvanised steel sheet Z275, but is also available in aluminium zinc AZ 185, stainless, acid-resistant steel 2343 or painted.
Sizes 7 and 9 are supplied with four twistable lifting and anchoring wire-loops. An individual anchoring eyelet must not be subjected to forces in excess of 1 500 N.