Flat roof rainwater retention mat ND WSM-50 Water Reservoir Panel

Sustainable, stable hydrophilic mineral wool panels that naturally retain water for intensive green roofs. These panels make it possible to use topsoil instead of ND DGS-I Substrate Intensive as a planting medium. Material hydrophilic mineral wool Density 120 kg/m³ Dimensions approx. 1,200 mm x 600 mm x 50 mm Packaging approx. 2.88 m², package Weight dry approx. 6 kg/m² Weight saturated approx. 46 kg/m² Water retention capacity approx. 40 l/m² = 80 % vol. Air volume approx. 16 % pH value approx. 7 - 8 Applications Nophadrain Extensive Green Roof System Nophadrain Intensive Green Roof System