The pavement surface retention system design is an effective way of delaying rainwater runoff and adding it to the natural water cycle through evaporation. In the case of a rooftop pavement surface, compactable and pressure-resistant material is laid to guarantee that people can walk on it safely. Rainwater retention does play an important role on green roofs, but water needs to be drained quickly from pavement surfaces so that it doesn’t stay there for too long. Which is why good drainage is important.
Use ClimaGrün’s own configurator and solution finder to obtain an overview, detailed system planning and calculation of the costs in no time.
ClimaGruen protection & storage fleece CG-SSV 500 for the protection of the roof sealing with separation and water storage function and the following properties:
Material PP (polypropylene) - recycled fibres, nominal thickness approx. 3,0 mm, weight approx. 500 g/m², water storage capacity approx. 2,0 l/m², static puncture resistance (EN ISO 12236) approx. 1.800 N, geotextile robustness class GRC 3, supply and lay professionally with 10 cm overlap.
Vertical protection mat
Building protection mat CG-BSM 6, for the protection of waterproofing at the edge area, supply and install according to planning specifications.
Retention module CG-RM 90
ClimaGruen retention module CG-RM 90 for extensive and intensive green roof, as well as the associated coverings, for temporary or permanent water storage with the following properties:
Material recycled polyolefin made of PP (polypropylene) - PE (polyethylene), nominal thickness approx. 90 mm, weight approx. 8,0 kg/m², void volume approx. 91 vol.%, retention volume approx. 82 l/m², compression strength (DIN EN ISO 25619-2) approx. 900 kN/m² at 7 % compression, supply and lay professionally.
Filter fleece CG-FV 200
ClimaGruen Filter fleece CG-FV 200 prevents fines from being washed into the drainage layer and guarantees a high water permeability with the following properties:
Material PP (polypropylene), nominal thickness approx. 1,9 mm, weight approx. 200 g/m², opening width O90 (EN ISO 12956) approx. 0,1 mm, static puncture resistance (EN ISO 12236) approx. 2.350 N, geotextile robustness class GRC 3, water permeability H50 (EN ISO 11058) approx. 115 l/m²s, supply and lay professionally with 10 cm overlap.
Base layer unbound heavy
Delivery, professional installation and compaction of a base and levelling layer Structure for unbound pavement construction at least 10 cm layer height. Material: Crushed stone 0-22.
Pavement slabs
Deliver slabs 5 cm thick, lay on at least 3 cm lime-free chippings 0-5 mm, including filling of joints, professionally according to manufacturer's instructions.
Retaining element with restrictor CG-AED
ClimaGruen retaining element CG-AED for object-specific setting of a defined restricton discharge with the following properties:
Material retaining element stainless steel (1.4301), material retaining adapter PVC, height approx. 210 mm, outer diameter approx. 375 mm, drain pipe diameter approx. 110 mm, accumulation cylinder diameter approx. 110 mm, stepless variable height adjustment approx. 60 mm, drainage capacity approx. 6,2 l/s, object-specific restrictor holes, weight approx. 5,2 kg, supply and install professionally.
