Extensive Roof System

To start with take a look at the most simple family of green roofs.

Extensive roof system.

The heart of the nophadrain extensive green roof system the nd 4 1h drainage system is the ideal under layer for an extensive green roof. 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. These are covered with low growing plants such as evergreen sedums. These systems are ideal for efficient stormwater.

Extensive green roof an extensive green roof system is characterized of its vegetation ranging from sedums to small grasses herbs and flowering herbaceous plants which need little maintenance and no permanent irrigation system the growing medium depth for an extensive green roof system is typically 6 inches or less. Extensive green roofs. Besides the visual impact of an extensive green roof they also provide a natural habitat for birds and insects. This multifunctional ce marked drainage system with high compressive strength protects the vegetation from water stagnation while at the same time storing water for dry periods in the built in water.

The design is supposed to give high performance to water use and thermal advantages while keeping the overall weight of the roof low. Extensive systems weigh anywhere from 10 to 25 pounds per square foot when dry which is why the interlocking system of trays is important otherwise strong winds could very easily. Extensive roofs are typically lightweight and can be installed over a variety of structures including metal roof decks.