Green roofing systems
How about a sedum roof or a complete roof garden?
More and more green roof systems are popping up in urban areas, as cities become sustainable and climate-proof. A green roof is flat or slightly sloping, and covered with vegetation. Not only do these roofs look charming, they retain rainwater longer, heat up less quickly, and insulate against heat in the summer and cold in the winter. On top of all that, they improve air quality, stimulate biodiversity, and protect the original roof, so that the roof covering lasts longer!
There are different types of green roofs, distinguished by their structure, purpose, and the amount of water they can collect and store.
Extensive green roofs are covered with a plant substrate between 6-cm and 10-cm thick. This type of green roof is relatively easy to install and maintain. They are common on homes, for example on extensions, storage rooms or canopies, and on commercial buildings.
Extensive green roofs offer multiple benefits: they reduce the heat island effect in urban areas, retain water and limit flooding in heavy rain, improve air quality, and increase biodiversity.
Intensive green roofs are suitable for places where lots of people gather, such as a roof terrace, a shared garden belonging to a block of flats, or the roof of a commercial building. This type of green roof is covered with 15 cm or more of plant substrate, so much thicker than an extensive green roof. Although these roofs need more maintenance and water, they do offer more opportunities for growing different types of plants and recreative activities on the roof.
There’s another massive advantage to green roofs: they may be eligible for a grant. They are encouraged with grants and tax benefits by many municipalities, because a green roof can help regulate the drainage of rainwater. For more information, contact your municipality. Companies can enjoy tax advantages.