Emergency overflow, rectangular

Quick emergency drainage of flat roof sections when the primary overflow solution is overloaded

Function

Moulded part for horizontal drainage or emergency drainage through the parapet wall. When installing the emergency overflow, the precise installation point depends on the water level.

Material

PVC and FPO/PP models for connection to the respective matching roofing membrane material type. Perform connection for bituminous waterproofing using liquid plastic. The materials are modified to be weather-resistant: UV-stabilised, against heat degradation and oxidative ageing as well as resistant to cold impact.

Versions PVC

Material Duct = W x H x L mm
PVC
similar to RAL 7047, Telegrey 4
120 x 60 x L 300
120 x 60 x L 600
180 x 80 x L 300
180 x 80 x L 600
300 x 80 x L 300
300 x 80 x L 600
300 x 100 x L 300
300 x 100 x L 600
500 x 100 x L 300
500 x 100 x L 600
600 x 100 x L 300
600 x 100 x L 600
750 x 100 x L 300
750 x 100 x L 600
1000 x 100 x L 300
1000 x 100 x L 600

Pipe inclination 5°.
Special sizes available on request.
Custom designs are non-returnable.
Attention: The processing instructions of the roofing membrane manufacturer must be adhered to; Materials and used material compounds may be subject to change.

Versions FPO/PP

Material Duct = W x H x L mm
FPO/PP
similar to RAL 7044, Silk grey
120 x 60 x L 300
120 x 60 x L 600
180 x 80 x L 300
180 x 80 x L 600
300 x 80 x L 300
300 x 80 x L 600
300 x 100 x L 300
300 x 100 x L 600
500 x 100 x L 300
500 x 100 x L 600
600 x 100 x L 300
600 x 100 x L 600
750 x 100 x L 300
750 x 100 x L 600
1000 x 100 x L 300
1000 x 100 x L 600

Pipe inclination 5°.
Special sizes available on request.
Also available in PE (PE-based roof membranes) and BIT (sealed with liquid plastic).
Custom designs are non-returnable.
Attention: The processing instructions of the roofing membrane manufacturer must be adhered to; Materials and used material compounds may be subject to change.

Examples

Drainage performance litre/sec:

LGA-certified characteristics

Duct = W x H Accumulation height
35 mm 65 mm
120 x 60 1.30 3.50
180 x 80 1.90 5.00
300 x 80 3.00 7.80
300 x 100 3.00 7.80
500 x 100 5.50 13.40
600 x 100 7.20 N/A
750 x 100 7.50 19.20
1.000 x 100 12.60 29.40

Technical drawings

Technical data
Duct = W x H b h c x
120 x 60 120 60 300 240 mm
180 x 80 180 80 360 260
300 x 80 300 80 480 260
300 x 100 300 100 480 280
500 x 100 500 100 680 280
600 x 100 600 100 780 280
750 x 100 750 100 930 280
1000 x 100 1000 100 1180 280

Tailored to meet your requirements

Do you have any questions or require a customised version of this product? Talk to our team of experts! We’ll discuss the available options with you to see how we can help!

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Vapour barrier sheet for round and rectangular scuppers and emergency overflows

Vapour barrier sheet for round and rectangular scuppers and emergency overflows

Pre-configured sheet for vapour-tight routing of the pipe to the parapet

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