alwitra flat roof drainage
For rainmakers and the water shy

Flat roof drainage

Ready for the next rain

Torrential rain, storms and flash floods are unlikely to become less frequent in future – so be clever and think ahead: with alwitra flat roof drainage systems, you can take the initiative and prevent problems from arising in the first place. Rainwater outlets, emergency outlets and water spouts from alwitra keep both feet and heads dry under any flat roof – for years to come, even when it’s raining cats and dogs.


Perfectly matched! Flat roof drainage by system

Matched: to the special requirements of roof and emergency outlets for low slope roofs
Efficient: optimised inlet geometry providing both a high discharge rate and a low ponding height
Resistant: made of highly impact-resistant polypropylene (PP)
Comprehensive: a large product range for EVALON® and EVALASTIC®.
Flexible: secure, professional flashing against EVALON® and EVALASTIC® and almost any other vapour control sheets
Safe: tested by TÜV Rheinland LGA Products GmbH according to DIN EN 1253

The alwitra flat roof drainage system consists of