Green roofs are not just a new architectural trend, they have been around for thousands of years. Unlike traditional black tar roofs, green roofs reduce energy costs by absorbing heat instead of attracting it and providing natural insulation for buildings.
Green walls and roofs can reduce temperature fluctuations of roof surfaces. This can lead to significantly cooler temperatures within a building and lower air conditioning costs.
The benefits given by the green roof should result in financial savings in future, for example by lowering energy bills and roof maintenance costs