Siphonic Roof Drainage: Compatibility with Nature

With DrainStar(R), the smart design and calculation software for siphonic roof drainage, the benefits are twofold: up to 60% of building costs can be saved, while reducing CO₂ emissions at the same time.

Remain competitive on a long-term basis: with the DrainStar^® Siphonic Calculator software you can greatly boost sales.

Environmental research experts have been demanding a dematerialization of the economy and improved compatibility with nature. Instead of exploiting nature, modern technology should be designed to harmonize with the organic flows of nature influenced by sun, wind, water, and gravity - to make them useful to human purposes without disrupting them.

It Is a Win Win for All

This is exactly what siphonic roof drainage does: gravity, one of the powers of nature, sucks rainwater off the roof. Such enormous suction power makes it possible to significantly reduce pipe dimensions and the number of roof outlets compared to conventional roof drainage.

Siphonic roof drainage; here: the Schalke-Arena, one of the largest soccer stadiums in Germany.

• Benefit 1 - Builder-owners save about 60% of material costs
• Benefit 2 - Nature profits at every stage of the product chain

"Over 90% of all materials and energy are consumed before the product is even finished", writes Professor Wolfgang Sachs of the Wuppertal Institute for Climate, Environment and Energy, a renowned European environmental think tank.

Proven Safety

For around 40 years, siphonic roof drainage has been a reliable technology in Europe. Safety standards are just as high as for conventional roof drainage systems.

Roof drainage with siphon effect is ideal for flat roofs; here: DaimlerChrysler AG in Stuttgart, Germany.

Certification

In addition, DrainStar users can benefit by following the example of Maxflow, a Keidel customer who used Keidel's DrainStar with their products and was able to certify it through the British Board of Agreement (BBA) as a siphonic roof drainage system of their own.

Case Study Cost Savings

This website provides a real-life example of cost savings of 61% with siphonic roof drainage for a 700 m² roof surface.

Green Building Program

The ecological effects of siphonic roof drainage are of advantage when applying for various Green Building programs for sustainable building, such as LEED.

If you have any questions, please contact us.