Drainage board usable on both sides, for extensive and simple intensive green
roofs on flat and pitched roofs (slopes up to 25°, with studs facing upwards); made of
expanded polystyrene (EPS); CFC-free; with water storage cells, openings for aeration
and diffusion as well as a continuous channel system on the underside; in-plane water
flow rate tested according to European Standard EN ISO 12958. Filling volume
(installation with studs facing upwards): ca. 20 l/m² max.; weight: ca. 1.0 kg/m2;
height: ca. 75 mm.