Green Roof Slope Design

Green roofs are suitable for any pitch of roof.

Green roof slope design.

By dave barista managing editor. It all comes down to the design as well as the types of plants that are added to the green roof. 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. 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.

Pitched green roof design considerations. 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. Support a green roof.

15 45 roof angle appropriate measures to cope with shear forces and erosion green wall. The greengrid vegetative green roof system is suitable for low slope roof concrete deck plaza applications and other comparable scenarios. Roof slope treatment volume is maximized on relatively flat roofs a slope of i to jr. A recent trend is to adapt green roof technology for low and steep slope applications.

A green roof system is perfect for over the garage for example and it can be integrated into almost any architecture style. 5 15 roof angle systems with optional support depending on project. However some slope is needed to promote positive drainage and prevent ponding and or prolonged saturation of the growing media. As the popularity of vegetated roofs grows in the u s building teams are finding new methods for greening rooftops.