Green Roof From Above

Green roof development involves the creation of contained green space on top of a human made structure.

Green roof from above.

Types of green roofs. Over a black roof flat. This green space could be below at or above grade but in all cases it exists separate from the ground. A green roof or rooftop garden is a vegetative layer grown on a rooftop.

A green roof moderates the heat flowing through the roof. A membrane is the bottommost layer of a green roof and is the main separation between the green roof above and the structural supports below. Greening a roof is not simple or cheap. An extensive green roof is a thin usually less than six inches lightweight system that is typically predominantly planted with succulents drought tolerant ground covering plants and grass.

The smartest green roof is one where the green roof element above a blue roof is a biosolar roof a green roof that houses solar panels. For intensive green roof profiles a drain restrictor may be used to retain water in the base of the profile for subsequent plant transpiration. Especially if it is designed specifically for biodiversity. Some parts of germany require green roofs on all new buildings.

Green roofs can provide a wide range of public and private benefits and have been successfully installed in countries around the world. A green roof is a roof that is partially or completely covered with vegetation and soil planted over waterproofing membrane. An intensive green roof is a deeper typically greater than six inches heavier system designed to sustain complex landscapes. Green roofs provide shade remove heat from the air and reduce temperatures of the roof surface and surrounding air.

Due to the excessive water amounts associated with green roofs the membrane must be strong enough to support this water weight and to not let it seep through. The additional thickness of the growing medium provides extra thermal insulation. Using green roofs in cities or other built environments with limited vegetation can moderate the heat island effect particularly during the day.