#GRASS ROOFS INSTALL#
If you want to install a green roof – what are the next steps?įirst of all, contact a reputable installer. Removing weeds, debris, cutting back and deadheading plants, as well as watering at times of low rainfall will be required. While extensive roofs are designed to be largely self-sustaining and require minimal maintenance, most will require at least some time, energy and labour to maintain. When it comes to retrofitting, the additional weight accompanying intensive roofs can require supplementary structural support work and strengthening, often resulting in green roof projects becoming financially unfeasible.
#GRASS ROOFS DOWNLOAD#
Acting as a ‘source control’ system, green roofs process rainwater where it falls and can greatly reduce surface water runoff by up to 90%.Ĭlick here to download our Sustainable Drainage Systems booklet. A green roof is one of many Sustainable Drainage Systems (SuDS) that can be integrated into the fabric of the urban environment, helping to alleviate flooding by reducing the amount of surface water runoff that enters the existing drainage infrastructure. However, one of the key uses and benefits of a green roof is in urban flood management and water retention. When planted with particular plant species and wildflowers, green roofs attract a wide variety of insects, birds, bees and butterflies as well as helping to provide safe and secure nesting places for native and migratory birds. The ecological benefits and increase in biodiversity are also profound.
Green roofs use the natural functions of plants and vegetation to absorb moisture and convert light energy, transferring less heat energy into the ambient air and resulting in reduced air pollutants and cooler microclimates in urban areas. Inner city areas act as heat traps with traditional roofs and hard surfacing absorbing light and eradiating heat into the surrounding area, contributing to what is known as the urban heat island (UHI) effect.
Gloucester Brookthorpe Services cc-by-sa/2.0 – © David Lally – /p/4902218Ī green roof absorbs less solar radiation and heat in the summer, helping to keep properties cooler than traditional roofs can.
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