Intensive Green Roof Layers

Nd 4 1h drainage system drainage system for intensive green roofs 7.

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. Earth pledge starting from the existing roof deck and moving up the typical layers of a green roof system are. The green roof consists of 8 superimposed layers 1 to 8. Examples of extensive green roofs produced by vegetal i d.

The nophadrain intensive green roof system 1. 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. Nd wsm 50 water reservoir panels 4. 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.

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. The load bearing component of the roof. An intensive green roof is a deeper typically greater than six inches heavier system designed to sustain complex landscapes. 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.

The incredible set up of this green roof supports flora ranging from wetland plants to small trees. The waterproofing membrane root barrier the drainage layer. The intensive green roof uses planting mediums that have greater depth than the extensive green roof. For intensive green roof profiles a drain restrictor may be used to retain water in the base of the profile for subsequent plant transpiration.

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. This deeper soil allows intensive roofs to accommodate large plants and dramatic plant groupings. 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. Nd dgs i substrate intensive 3.

All three types of roofs require specific layers of roofing materials not found on regular roofs. Vegetative roofs also known as green roofs are thin layers of living vegetation installed on top of conventional flat or sloping roofs. Another term for these green roofs is rooftop garden. The components of a green roof.

Nd tsf 100 slip and protection sheet 8. Laying course or leveling layer 6. The green roof is a basic extensive system featuring a 1 inch drainage layer and 3 inch growing medium profile.