Green roofs might be a new standard for commercial buildings - there are regulations in London that require buildings of a certain size and function to have a green roof - they come in all shapes and sizes from micro-green roof setups on sheds to vast rooftop gardens on modern self-built homes.
Whether it’s a towering office block,
a school, or simply on your flat-roofed extension at home, green roofs look undeniably attractive than most other roofing options, and they’re not simply style over substance, they can help reduce the impact of your building works on the environment.
What are the Benefits of a Green Roof?
A green roof is, without a doubt, one of the most visual signals that you take sustainable building seriously. There is some cynicism that they do not serve enough ‘eco purpose’ to be worthwhile, but there are some genuine benefits:
• they absorb heat from the sun
• they absorb CO2
• they absorb up to 70 per cent of the water that falls on them
• they provide a degree of insulation – more cooling the building in summer as opposed to staying warm in winter
• they replace the ecology that the building stands upon.
Green roofs also serve an aesthetic purpose and can soften the look of rooftops and help blend buildings into the natural environment.
In ecological terms, a green roof is a simple and great thing to do. They can replace the ecology that the building is sat upon, and if used over a whole roof can be the single most overriding design influence on the house, as well as impacting on the construction, even down to the foundations.
However, a green roof does not need to be applied to the entire roof. Even just having a sec ton planted is visually pleasing and a step in the right direction.