Excstensive Sedum Green Roof System

An extensive lightweight green roof system utilising a pre grown vegetation mat of 8 12 sedum species.

Excstensive sedum green roof system.

Roughly speaking extensive green roofs have a substrate thickness of between 4 and 15 cm and a weight of 30 to 220 kilo per m2. An extensive green roof or sedum roof is a roof with vegetation that is more or less self perpetuating and that can further develop and maintain itself. Whether it is a sedum blanket or sedum plug our plants are lovingly nurtured at our uk nursery before being lifted and transported to site within 24 hours. It is a shallow and lightweight green roof type with ground covering plants that requires little maintenance.

Sedum roofs are extensive green roofs that have a media depth of 3 8 inches. Sky garden s sedum blanket is a pre grown mat of mature sedum plants. Vegetation options plugs cuttings instagreen sedum carpet or instagreen sedum tile typical application. Sedum roofs with a natural drainage layer are designed to maximize water retention while sedum roofs with a synthetic drainage layer may focus more on minimizing weight.

There are two variations for the system build up. It has the necessary compressive strength a low profile height little. The vegetation mat is installed on a shallow depth of specially formulated free draining substrate and drainage board. The sedum carpet is a standard build up for extensive green roofs.

An extensive garden roof assembly can be applied to flat roofs and sloping roofs with a pitch of up to 12 12 or 45 provided the appropriate measures are taken to cope with the shear forces and soil retention.