Weather louvres

Weather louvres normally form the duct termination to the outside of the building and prevent entry of water or solids into the duct network. Multi-leaf damper are used for sealing individual duct sections. The product range comprises round or rectangular louvres with different features (rigid, flexible or vertical blades for slanted/Mansard roof installation, integrated acoustic elements etc.). Multi-leaf dampers are available in rectangular formats with parallel or opposed blades with manual or motor-driven adjustment.