An extensive substrate providing a suitable growing medium for a self-sustaining plant community consisting of pre-grown sedum plug plants or pre-grown sedum blankets.
Sedum based green roofs using pre-grown sedum plugs or pre-grown sedum blanket. Install GM20 Extensive Substrate on either Radmat D25 or D40 drainage/reservoir board covered with G11 filter fleece in accordance with the Radmat specification.
Radmat GM20 Extensive Substrate provides a suitable growing medium for a self-sustaining plant community consisting of pre-grown sedum plug plants or pre-grown sedum blankets. Consisting of a blend of water retaining aggregates, crushed brick and organic material, all composted material is from sustainable sources and the crushed brick element is a by-product or a second from the brick manufacturing industry and contains no demolition waste. Compliant with GRO substrate guidelines.
Topsoil, growing medium, subsoil and preparation materials generally
Organic matter content
38 g/ l.
Percentage of material smaller than 0.063 mm in size (by mass)
Percentage of material greater than 4.0 mm in size (by mass)
Air content at maximum water holding capacity
MedO GM20 Extensive Substrate