Emergency overflow, round
Extra drainage through the parapet, either free flow or through the pipe system
Function
Structure part for horizontal emergency drainage through the parapets of flat roofs or terraces. Install by connecting to a pipe system for water drainage, or use for free-flow drainage. When installing the emergency overflow, the precise installation point depends on the water level.
Material
Our emergency overflows are available in PVC, FPO/PP and BIT for connection to the matching material used for the roof membrane. The material compounds used are low-temperature impact resistant, weatherproof and stabilized against ultraviolet rays, oxidative decomposition and thermal aging.
Versions BIT
| Material | Technical information | |
|---|---|---|
| BIT | With bitumen sleeve Pipe length 490 mm |
D 50 mm (DN 50) |
| D 63 mm | ||
| D 75 mm (DN 70) |
||
| D 110 mm (DN 100) |
||
| D 125 mm (DN 125) |
||
Pipe inclination 5°.
Special sizes available on request / The processing instructions of the roof sheeting manufacturer must be observed; Materials and material compounds used may be subject to change.
Versions PVC
| Material | Technical information | |
|---|---|---|
| PVC similar to RAL 7035, Light grey |
With bitumen sleeve Pipe length 490 mm |
D 50 mm (DN 50) |
| D 63 mm | ||
| D 75 mm (DN 70) |
||
| D 110 mm (DN 100) |
||
| D 125 mm (DN 125) |
||
Pipe inclination 5°.
Special sizes available on request / The processing instructions of the roof sheeting manufacturer must be observed; Materials and material compounds used may be subject to change.
Versions FPO/PP
| Material | Technical information | |
|---|---|---|
| FPO/PP similar to RAL 7044, Silk grey |
With bitumen sleeve Pipe length 490 mm |
D 50 mm (DN 50) |
| D 63 mm | ||
| D 75 mm (DN 70) |
||
| D 110 mm (DN 100) |
||
| D 125 mm (DN 125) |
||
Pipe inclination 5°.
Special sizes available on request / Also available in PE (roofing membranes based on PE) / The processing instructions of the roof sheeting manufacturer must be observed; Materials and material compounds used may be subject to change.
Examples
Drainage performance litre/sec:
LGA-certified characteristics
| Technical data | ||
|---|---|---|
| Diameter | Accumulation height | |
| 35 mm | 65 mm | |
| D 50 mm (DN 50) |
0.51 | 1.31 |
| D 75 mm (DN 70) |
0.65 | 1.65 |
| D 110 mm (DN 100) |
1.00 | 2.65 |
| D 125 mm (DN 125) |
1.00 | 2.80 |
Technical drawings
| Technical data | ||
|---|---|---|
| D1 | 50 / 63 / 75 / 110 / 125 | mm |
| a | 300 | |
| l | 490 | |
| t | 3.0 | |
Downloads
Package units
Supplied in cartons, each containing 1 unit
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!
Function
Structure part for horizontal emergency drainage through the parapets of flat roofs or terraces. Install by connecting to a pipe system for water drainage, or use for free-flow drainage. When installing the emergency overflow, the precise installation point depends on the water level.
Material
Our emergency overflows are available in PVC, FPO/PP and BIT for connection to the matching material used for the roof membrane. The material compounds used are low-temperature impact resistant, weatherproof and stabilized against ultraviolet rays, oxidative decomposition and thermal aging.
Versions BIT
| Material | Technical information | |
|---|---|---|
| BIT | With bitumen sleeve Pipe length 490 mm |
D 50 mm (DN 50) |
| D 63 mm | ||
| D 75 mm (DN 70) |
||
| D 110 mm (DN 100) |
||
| D 125 mm (DN 125) |
||
Pipe inclination 5°.
Special sizes available on request / The processing instructions of the roof sheeting manufacturer must be observed; Materials and material compounds used may be subject to change.
Versions PVC
| Material | Technical information | |
|---|---|---|
| PVC similar to RAL 7035, Light grey |
With bitumen sleeve Pipe length 490 mm |
D 50 mm (DN 50) |
| D 63 mm | ||
| D 75 mm (DN 70) |
||
| D 110 mm (DN 100) |
||
| D 125 mm (DN 125) |
||
Pipe inclination 5°.
Special sizes available on request / The processing instructions of the roof sheeting manufacturer must be observed; Materials and material compounds used may be subject to change.
Versions FPO/PP
| Material | Technical information | |
|---|---|---|
| FPO/PP similar to RAL 7044, Silk grey |
With bitumen sleeve Pipe length 490 mm |
D 50 mm (DN 50) |
| D 63 mm | ||
| D 75 mm (DN 70) |
||
| D 110 mm (DN 100) |
||
| D 125 mm (DN 125) |
||
Pipe inclination 5°.
Special sizes available on request / Also available in PE (roofing membranes based on PE) / The processing instructions of the roof sheeting manufacturer must be observed; Materials and material compounds used may be subject to change.
Examples
Drainage performance litre/sec:
LGA-certified characteristics
| Technical data | ||
|---|---|---|
| Diameter | Accumulation height | |
| 35 mm | 65 mm | |
| D 50 mm (DN 50) |
0.51 | 1.31 |
| D 75 mm (DN 70) |
0.65 | 1.65 |
| D 110 mm (DN 100) |
1.00 | 2.65 |
| D 125 mm (DN 125) |
1.00 | 2.80 |
Technical drawings
| Technical data | ||
|---|---|---|
| D1 | 50 / 63 / 75 / 110 / 125 | mm |
| a | 300 | |
| l | 490 | |
| t | 3.0 | |
Downloads
Package units
Supplied in cartons, each containing 1 unit
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!
Matching accessories
Vapour barrier sheet for round and rectangular scuppers and emergency overflows
Pre-configured sheet for vapour-tight routing of the pipe to the parapet
Similar products
Drains
LGA-certified vertical drainage through the roof system with a flow-optimised gravel collection basket
Scupper, round
Quick drainage through the parapet, either free flow or through the pipe system
Scupper, rectangular
Quick or emergency drainage through the parapet with full capacity from the outset
Emergency overflow, rectangular
Quick emergency drainage of roof sections through the parapet when the primary overflow solution is overloaded