Roof drains: Drainage and renovation of flat roofs

Roof drains

Gravity drainage, siphonic drainage, overflow drainage, renovation or fire insulation – whatever the task, Dallmer has the right product, whatever type of roofing membrane, Dallmer has the right connection. This ensures that the Dallmer roof drainage product range meets all demands made on both flexibility and safety.

 

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.

 

Roof drains and overflow drains

Roof drains for gravity drainage

Roof drains for gravity drainage

DN 70 / DN 90 / DN 100 /
DN 125 / DN 150 
Drainage rates: 0.55 - 28.4 l/s depending on water over grate

Roof drains for small areas

Roof drains for small areas

DN 50 / DN 70 / DN 100
Drainage rates: 0.9 - 17 l/s depending on water over grate

Overflow drainage
Gravity drainage

Overflow drainage

DN 70 / DN 100 /
DN 125 / DN 150
Drainage rates: 0.7 - 20.1 l/s depending on water over grate

Renovation roof drains

Renovation roof drains

DN 70 / DN 100 /
DN 125 / DN 150
Drainage rates: 0.5 - 29.8 l/s depending on water over grate

 
Green roof and terrace gratings

Green roof and terrace gratings

Dimensions: 150 x 150 / 200 x 200 / 362 x 362 mm

Siphonic roof drainage
SuperDrain

Siphonic roof drainage SuperDrain

DN 70 / 90
Drainage rates: 0.45 l/s - 22.3 l/s depending on water over grate

Siphonic overflow drainage
SuperDrain

Siphonic overflow drainage SuperDrain

DN 70 / 90
Drainage rates: 0.7 l/s - 22.0 l/s depending on water over grate

 
Gravity drainage

Roof drains for connection to all common vapour barriers and roof membranes: asphalt sheeting, FPO-PP and PVC membranes, PE and other foils


Gravity overflow drainage

Dallmer overflow drains, instantly identifiable by their signal red colour, ensure the controlled drainage of flat roofs even in the event of extremely heavy rainfall.

Renova roof drains

Considerably facilitate the refurbishment of flat roofs: installation of the new drain without the need to remove the old one

Gratings for green roofs and terraces
Gratings for green roofs with four connecting points and height-adjustable terrace gratings offer particularly flexible solutions for outdoor drainage.
Siphonic roof drainage SUPERDRAIN®

Drainage systems that operate with negative pressure save space and material. Dallmer has a range of suitable drains.

Siphonic overflow drainage SUPERDRAIN®

Overflow drainage units for siphonic drainage

 
 
Gravity drainage
Gravity drainage

Roof drains for connection to all common vapour barriers and roof membranes: asphalt sheeting, FPO-PP and PVC membranes, PE and other foils


1
Gravity overflow drainage
Gravity overflow drainage

Dallmer overflow drains, instantly identifiable by their signal red colour, ensure the controlled drainage of flat roofs even in the event of extremely heavy rainfall.

2
Renova roof drains
Renova roof drains

Considerably facilitate the refurbishment of flat roofs: installation of the new drain without the need to remove the old one

3
Gratings for green roofs and terraces
Gratings for green roofs and terraces
Gratings for green roofs with four connecting points and height-adjustable terrace gratings offer particularly flexible solutions for outdoor drainage.
4
Siphonic roof drainage SUPERDRAIN®
Siphonic roof drainage SUPERDRAIN®

Drainage systems that operate with negative pressure save space and material. Dallmer has a range of suitable drains.

5
Siphonic overflow drainage SUPERDRAIN®
Siphonic overflow drainage SUPERDRAIN®

Overflow drainage units for siphonic drainage

6
Shape Copy 3 Created with Sketch.

Drainage by design.
Since 1913

 
 

 

Contact

Dallmer GmbH + Co. KG
Wiebelsheidestraße 25
59755 Arnsberg
Germany
Telefon: +49 2932 9616-0
Fax: +49 2932 9616-222

info@dallmer.de

 
 
Shape Copy 3 Created with Sketch.

Contact

Dallmer GmbH + Co. KG
Wiebelsheidestraße 25
59755 Arnsberg
Germany
Telefon: +49 2932 9616-0
Fax: +49 2932 9616-222

info@dallmer.de

 
Shape Copy 3 Created with Sketch.

Show address

Contact

Dallmer GmbH + Co. KG
Wiebelsheidestraße 25
59755 Arnsberg
Germany
Telefon: +49 2932 9616-0
Fax: +49 2932 9616-222

info@dallmer.de



 
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