Sedum Roofing

The steady increase in urban development continues to reduce the total area of permeable ground available to absorb rainwater run off. Hard construction materials (like roof tiles, concrete paving and tarmac roadways etc.), discharge water very quickly reducing effective evaporation and loading the drainage systems, which in turn can contribute to flooding.

Green roofs, like the sedum roof, can retain a very high percentage of rainwater and provide slow and controlled water run off, thereby reducing the load on the drainage system and allowing much faster evaporation of accumulated moisture.

Green roofs improve the thermal performance of buildings, helping to keep them cool during warm weather by reducing heat absorption. In winter a green roof provides additional insulation so reducing heating costs for the building.

During the natural process of photosynthesis, plants convert carbon dioxide to oxygen, which improves the immediate air quality. Plants also absorb gaseous pollutants through their leaves and metabolise them so removing them from the environment. The plants and substrate contribute as a sound barrier providing excellent acoustic performance towards noise reduction.When the green roof is wet this enhances the reduction even further.