Roof drains: Drainage and renovation of flat roofs

Technically sophisticated solutions for flat roof drainage and renovation

There are two methods of flat roof drainage: gravity drainage and siphonic drainage. While gravity drainage is based, self-evidently, on the principle of gravity and drains the water into a sloped drainage pipe via downpipes, siphonic drainage functions using negative pressure. This accelerates the flow velocity of the water and minimises space requirements as the pipes can be laid without the need for a slope. Dallmer offers drains that connect to all standard vapour barriers and roof membranes for both drainage types. It also offers accessories, such as fire insulating elements and overflow drains, which also ensure the controlled function of the drainage system, even in the event of heavy rainfall.

When dealing with flat roofs, it is also important not to sideline the topic of "renovation", projects that are usually time-consuming and labour-intensive. But it could all be so easy - with the right technology: the 63 T renovation drains from Dallmer offer significant time savings as they are simply inserted in the outlet of the existing drain.