AV 220 Drainage System

Similar to the AV 200 Drainage System but with an additional pressure-dividing slip film glued to the back of the dimpled sheet that acts as the first smooth, non-sticky surface of the slip layer and as an additional protection layer of the waterproofing membrane. Application The AV 220 Drainage System is a component of the Nophadrain Podium Deck System that acts as a filter, drainage and protection layer. Properties • Material dimpled sheet: recycled high impact polystyrene (HIPS) • Material geotextile filter: polypropylene (PP) and polyethylene (PE) • Material pressure-dividing slip film: polypropylene (PP) – AV 220 only • Construction height: approx. 12.5 mm • Compressive strength: approx. 700 kPa • Weight: approx. 956 g/m² (AV 220) • Drainage capacity at i = 1 at 20 kPa: approx. 5.29 l/(s.m) • Drainage capacity at fall ratio 2 % at 20 kPa: approx 0.60 l/(s.m)