Green Roof Slope Design

While the basic components of a sloped green roof are similar to that of a flat system building teams must pay particular attention to water management erosion control and maintenance.

Green roof slope design.

The greengrid vegetative green roof system is suitable for low slope roof concrete deck plaza applications and other comparable scenarios. It all comes down to the design as well as the types of plants that are added to the green roof. 15 45 roof angle appropriate measures to cope with shear forces and erosion green wall. This means that you can have a green roof that s best suited for flat surfaces slanted roofs and more.

A low slope roof is a roof surface with a maximum slope of 2 inches of rise for 12 inches of run 16 degrees as defined in american society for testing and materials standard astm e 1918 97. As the popularity of vegetated roofs grows in the u s building teams are finding new methods for greening rooftops. Roof slope treatment volume is maximized on relatively flat roofs a slope of i to jr. However when dealing with a sloped green roof with a pitch of more than 9 5 you ll need a design solution for retaining water and ensuring the substrate stays in place.

However some slope is needed to promote positive drainage and prevent ponding and or prolonged saturation of the growing media. There is no steepest pitch for a green roof they can even grow vertically. 0 5 roof angle green roof systems according fll without additional support. Green roofs can be installed on rooftops with slopes up to jmr if baffles grids or strips.

A green roof system is perfect for over the garage for example and it can be integrated into almost any architecture style. Green roofs are suitable for any pitch of roof. By dave barista managing editor. Support a green roof.