Intensive Green Roof Layers

The basic anatomy of a green roof consists of vegetation growing medium filter membrane drainage layer waterproof root repellant layer roofing membrane support for plantings above thermal insulation vapor control layer and structural roof support.

Intensive green roof layers.

The incredible set up of this green roof supports flora ranging from wetland plants to small trees. The intensive green roof uses planting mediums that have greater depth than the extensive green roof. Vegetative roofs also known as green roofs are thin layers of living vegetation installed on top of conventional flat or sloping roofs. Earth pledge starting from the existing roof deck and moving up the typical layers of a green roof system are.

This is most noticeable in intensive green roofs since there is a thicker and more consistent layer of soil which provides a higher insulating value. Nd dgs i substrate intensive 3. Another term for these green roofs is rooftop garden. The intensive portion features a 2 10 inch drainage layer and a 2 5 to 8 inch growing media layer exhibits diverse examples of habitats.

For intensive green roof profiles a drain restrictor may be used to retain water in the base of the profile for subsequent plant transpiration. We have chosen to use the word vegetative rather than the word green in this guide because a non vegetative roof could be considered to be environmentally green without being vegetative. Waterproof membrane in many retrofit cases this layer already exists and depending on it s condition water tightness it may or may not need replacing. An intensive green roof is a deeper typically greater than six inches heavier system designed to sustain complex landscapes.

The components of a green roof. The green roof consists of 8 superimposed layers 1 to 8. Nd wsm 50 water reservoir panels 4. Examples of extensive green roofs produced by vegetal i d.

The green roof is a basic extensive system featuring a 1 inch drainage layer and 3 inch growing medium profile. Laying course or leveling layer 6. This deeper soil allows intensive roofs to accommodate large plants and dramatic plant groupings. The load bearing component of the roof.

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. All three types of roofs require specific layers of roofing materials not found on regular roofs. Nd tsf 100 slip and protection sheet 8. Examples of semi intensive green roofs produced by vegetal i d.

Bright pink dianthus bloom throughout the warmer months and sedum spurium fuldaglut add bright red contrast during the fall and winter providing year round interest. Green roofs can help reduce energy costs for a building by acting as another layer of insulation between the inside and outside of the roof. Layers of a typical green roof.