Extension material
Above roof extension material
For extending concentric connection material of 60/100, 80/125 and 100/150 mm above the roof, we have aluminum casing pipes (black) with a diameter of 120, 140 and 170 mm. You can choose from pipes of 250, 500 and 1000 mm length (for 200, 450 and 950 mm extension). Always use the extension material above the roof in combination with the extension material below below.
Shelter extension material
For extending roof ducts 80/125 and/or 100/150 under the roof, we have concentric extension pipes where the inner and outer pipes are not permanently mounted together. You can choose from pipes of 250, 500 and 1000 mm length (for 200, 450 and 950 mm extension). The inner pipe is made of thick-walled aluminum, the outer pipe of white-coated Sendzimir galvanized steel.