Extensive green roofs are designed to be low maintenance lightweight systems with no general access.
Extensive green roof system.
Green roofs are also known as vegetative or eco roofs.
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.
Urbanscape is the first in the green roof industry to publish a system epd environmental product declaration for its extensive green roof system.
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 blow the plantings away.
For architects and specifiers looking to earn points in building rating systems such as breeam leed dgnb or hqe this epd can now provide points for categories such as product disclosure.
A green roof is a layer of vegetation planted over a waterproofing system that is installed on top of a flat or slightly sloped roof.
These systems are ideal for efficient stormwater.
They fall into three main categories extensive intensive and semi intensive.
The biggest benefit of extensive green roofs is that they need very little maintenance.
Extensive green roofs sedum roof systems.