AV SM-25 Substrate Panels

Water-absorbing and hydrophilic mineral wool panel with a thickness of approx. 25 mm and a density of approx. 120 kg/m³ as a substrate substitute in accordance with the FLL*-Guidelines for Green Roofs. Application The AVND SM-25 Substrate Panels is a component of the Nophadrain Extensive Green Roof – lightweight, medium pitched and steep pitched roof constructions. The panels replace the substrate as a growing medium in the green roof build-up. By using these panels in combination with AV Vegetation Blankets - Sedum, the weight of the total build-up for an extensive green roof can be reduced to approx. 40 kg/m². Properties • Material: hydrophilic mineral wool • Density: approx. 120 / 80 kg/m³ • Water retention capacity: approx. 20 / 30 l/m² = 80 % volume • Air volume: approx. 16 % • pH value: approx. 7 - 8 • Weight: dry approx. 3 / 4 kg/m², saturated approx. 23 / 34 kg/m²