As linear drainage to support the guidance of excess water from drainage and substrate layers. The profiles can be fitted together using a simple click fastening system to form endless lengths.
Area of use
- On roof areas up to approx. 5° roof pitch
- To support the guidance of excess water into drainage and substrate layers with flow lengths over 6-10 m
- Can be combined with inspection chambers, WKA water channels, WRA water channels and gravel bars thanks to pre-punched
connection options
Specific properties
- Targeted, resistance-free drainage of excess water
- The height of the system structure above remains unaffected, thus greater space for roots
- No floating of the profiles as with round pipes.
- Simple and variable laying
- Rapid guidance of excess water with siphonic drainage