Overflow drainage by DALLMER

Overflow drainage

Manufacturer

Designer Johannes Dallmer
Architonic id 1174886

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The terms of DIN 1986 -100 require guaranteed controlled operation of the rainwater drainage system under conditions of both partial load and overload, e.g. in a „storm of the century“ situation. Our Dallmer overflow drains are designed for just this, as a combination of roof drain and overflow drainage fittings. Their red colour immediately identifies them as a separate system. Unlike conventional parapet drains, they drain the flat roof where the water actually falls and not just round the edges.

Dallmer type 86.1 overflow drain fittings are supplied for use with all roof drains, installed as an accessory with a sealing ring. As there is no connection created with the roof membrane, there is no need for them to be clamped to it. With a threaded arrangement they are heightadjustable between 35 - 75 mm. As a high-performance variation on conventional parapet drains, the compact Powerdrain overflow drain, type 86 is normally installed in the insulation layer.



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