Manufactured of a special compound of thermoplastic rubber, it is highly resistant against low temperatures (cold flexibility = -40°) as well as perfectly compatible with all sorts of bituminous waterproofing membrane. “GENIUS” is the only roof drain in the world with a special circular row of holes and through these holes the waterproofing membrane torched over its flange is totally blended with the membrane below. The 400 mm long spigot is provided with three couples of anti-infiltration tongues that prevent any infiltration between the spigot and the drain pipe. The product is PATENTED.
- Reinforced edge
- “Dovetail” circular rings to facilitate the attachment of the cast bitumen
- Predisposed for the installation of a leaf-guard
- Through-holes to facilitate the upper membrane’s perfect fusion with the lower membrane
- Knurled flange bottom
- Two 1cm thick “backflow prevention” flaps