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Green Roof Garden Insulation

Green Roof Gardens are becoming an increasingly popular roofing option for concrete roofs, with many modern cities demanding a percentage of total roof space be green. Green Roof Gardens reduce surrounding temperatures, provide insulation, improve air quality, reduce storm water run off and provide people and animals in CBD area’s with more usable outside space.

Green Garden Roofs will provide some insulation from the soil and plants, but for adequate R-Values, added insulation is needed. Extruded Polystyrene is a closed cell rigid board with minimal water absorption and high R-Values. It is placed below the soil but above the concrete roof, creating a continuous thermal barrier. It can also have pavers and ballast placed on it, providing walkways and recreation areas, as seen on the PRMA page.

“Green Roof Gardens Are Carbon Sequestrators,  Absorbing Carbon From The Air & Improving Air Quality”

Extruded Polystyrene provides no nutritional value to plants, animals or bacteria, so it is not degraded by their presence. It also has very low water absorption potential, and can easily function in the presence of moist growing medium and water runoff.

Extruded Polystyrene’s high compressive strengths means it is not affected by continuous pressure from foot traffic, growing medium or other loads. Austech has a range of compressive strengths available that can deal with heavy loads, including vehicular traffic.

For more information green roof garden insulation please contact your local Austech office.