Public Roof Retention
- Suitable for traffic areas.
- Water Retention Box WRB, including Flow Control system.
Top Layer
Pavement or slab covering, covering height depending on load class.
Bedding Material
- E.g. bedding stone chippings 0–5 mm (30–50 mm)
- Screed layer for surfacing material
Base Layer
Base layer of gravel 0-32 mm resp. 0-45 (height 150 mm minimum)
Filter Fleece FIL 300
Prevents fine particles from forming sludge in the drainage layer; high water permeability, very high robustness class GRC 5
Productdetails: Filter Fleece FIL 300
Water Retention Boxes WRB 85, WRB 95 or WRB 170*
Infiltration trough made of recycled PP intended for surface drainage in combination with a Flow Control System; high water retention potential
Productdetails: WRB 85 WRB 95 WRB 170
*Selection according to load class, roof construction and required accumulation height. Please contact our Technical Department.
Flow Control System
(not shown in the drawing)
- Throttle with defined perforations that allows a delayed water discharge
- Permanent accumulation of stormwater possible up to a defined hight
Protection, Separation and Slip Layer SGL 500 and Separation and Slip Sheet TGF 0.2
Productdetails:
