Green Roof Information

Green roofs are also known as vegetative or eco roofs.

Green roof information.

Sedum and green roofs information one of the most popular plants for green roofs especially for domestic premises is sedum as it is light weight and easy to grow with little maintenance required. The extra growing medium and vegetation insulates the building from intense temperatures and minimizes heat gain. A green roof is a layer of vegetation planted over a waterproofing system that is installed on top of a flat or slightly sloped roof. They act as a kind of trap for storm water absorbing 50 to 80 per cent of rainfall and cooling the excess before it washes into the storm drain system.

Temperatures on the green roof are moderated in the summer and the winter helping to reduce energy costs. Green roofs transform the tops of houses and businesses into urban gardens. In winter they retain between 25 40 percent. Many of these sedum varieties are flowering so the roof will change color with the seasons.

For example a grass roof with a 4 20 cm 1 6 7 9 inches layer of growing medium can hold 10 15 cm 3 9 5 9 inches of water. Not only are they eco friendly there is a growing recognition that green roofs are making buildings very energy efficient keeping them warmer in winter and cooler in the summer. Sedum is also much cheaper than other combinations of plants and is popular with those who want to build their green roof themselves. It may also include additional layers such as a root barrier and drainage and irrigation systems.

A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium planted over a waterproofing membrane. The green roof manages stormwater by reducing the volume of runoff and delaying the peak rate of runoff. Green roofs for healthy cities grhc is the north american industry association for the green roof and wall sectors. Green roofs also have a fairly stable surface temperature remaining at air temperature or cooler while traditional rooftops can soar up to 90º f 32º c above air temperature source.

The international greenroof greenwall industry s resource and online information portal. The green roof acts as a bio filter basically as a big sponge that sucks up dirt and pollution in the air. Find out more about the ecological and financial benefits of green roofing.