Siphonic Drainage

Unlike conventional roof drainage methods, the siphonic action ensures the drainage pipe system can fill up completely, thanks to the design of the roof outlets and the correct pipeline dimensioning, thus generating a negative pressure in the pipeline. The negative pressure in the pipe rapidly draws the rainwater by suction from the roof area, instead of merely allowing it to drain away. This also ensures an improved self-cleaning function.


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0161 367 1230


Hyde Park House,
Cartwright Street,
Hyde, Cheshire SK14 4EH