High-quality, CE-marked drainage system with a water reservoir for roofs with limited fall that are planted with extensive or intensive vegetation, or where extensive drainage lengths are required. The drainage system prevents the build-up of hydrostatic pressure on the waterproofing membrane, protects it against mechanical loads and ensures that vapour is able to evaporate freely from the XPS insulation on an inverted roof.

• Dimensions: approx. 20 m x 1.25 m
• Packaging: approx. 25 m², roll
• Weight: approx. 1,252 g/m²
• Build-up height: approx. 27.5 mm
• Compressive strength: approx. 480 kPa
• Material dimpled sheet: recycled, high impact polystyrene (HIPS)
• Material geotextile filter: polypropylene (PP)
• Material vapour-permeable geotextile: polypropylene (PP) and propyethylene (PE)
• Perforation /m²: approx. 575, ? 15.8 mm
• Water reservoir: approx. 5.8 l/m²
• Drainage capacity i = 1 (20 kPa): 15.70 l/(s.m)
• Drainage capacity 2 % fall (20 kPa): 2.14 l/(s.m)
• CE hEN EN 13252