The two-part system consisting of a custom-fit refurbishment plate.
- The plate is positioned centrally over the existing rainwater outlet and sealed to the current waterproofing layer to prevent backflow.
- The drainage component is then easily inserted into the refurbishment plate to complete the installation.
- Flashing against the new waterproofing is carried out either with connecting flange and screw ring (refurbishment rainwater outlet 125) or with factory fitted connecting flange (refurbishment rainwater outlet 75, 110).
Refurbishment Outlets
When refurbishing roofs with added insulation, where replacing the existing outlets isn’t practical, installing alwitra® refurbishment rainwater outlets is recommended.
40 years experience with waterproofing systems in the UK
As used on landmark architecture throughout the world
Applications
- Refurbishment projects involving the addition of extra thermal insulation.
Product Details Back to top
Product Specification
Technical data for alwitra® refurbishment rainwater Outlet 125
|
For existing rainwater outlets: |
DN 125 - DN 150 |
| Material: | highly impact resistant PP |
| Min. thickness of additional insulation: | approx. 50 mm |
| Max. thickness of additional insulation: | approx. 200 mm |
| Outer diameter of flange: | 290 mm |
| Flange width: | approx.50 mm |
| Diameter of the drainage element: | approx. 120 mm |
| Outer diameter of connecting flange: | 480 mm |
| Refurbishment plate: | PP black |
Technical Data for alwitra® refurbishment rainwater outlet 75 and 110
|
For existing rainwater outlets: |
DN 100 (outlet 110) DN 70 - DN 90 (outlet 75) |
| Material: | PVC |
| Min. thickness of additional insulation: | approx. 10 mm |
| Max. thickness of additional insulation: | approx. 300 mm |
| Connecting flange: | factory-fitted, in the colour of the waterproofing membrane 75: 180 x 180 mm 110: 230 x 230 mm |
| Refurbishment plate: | Aluminium |
Technical Drawings
