Green roofs are also known as eco-roofs or living roofs and represent one of the most efficient roofing solutions to reduce ambient temperature in urban areas. In summer, temperatures in the cities are up to 7 degrees Celsius higher than outside them, due to the heat absorbed by buildings and streets. The temperature of a traditional roof can be up to 30-40 degrees Celsius higher compared to a green roof. According to studies on climate change, cities needs 10% more green areas, if we want the urban island effect diminished.
Other advantages of a green roof
- Rain water retention
Green roofs reduce water leaks, which reduces sewerage system load by 70-95%, in the summer.
- Water purification
By natural bio-filtration, these roofs prevent toxins from reaching waterways.
- Reducing CO2 emissions
One m² of green roof is able to absorb 5kg of CO2 per year. In addition, due to the low energy consumption, there is an extra reduction of about 3 kg of carbon dioxide each year.
- Cleaner air
Vegetation on green roofs can catch various particles such as smog and different volatile organic compounds from the atmosphere, with a positive effect on the quality of the air and the health of the inhabitants.
- Natural habitat
Green roofs constitute a habitat for different species, restoring the ecological cycle disturbed by urban infrastructure.
Besides these advantages, there are also economic benefits (energy efficiency, noise reduction) and social benefits (usable green space and urban agriculture).
Talk to top quality San Jose roofing company experts to see if a green roof is right for you.