green roofs.... Green roof ...

green roofs....

Green roof refers to a system of roofing that uses plant for roof covering instead of traditional covering materials. 

some of the benefits of the GR are,

 

• Add insulation to the building

• Reduce stormwater runoff

• Cool the surrounding air and lessen the heat-island effect in urban areas

• Reduce air pollution

• Capture carbon dioxide to help reduce global warming

• Mitigate noise and glare

• Create new habitat for birds and other wildlife.

 Some of the limitation are: these are more expensive to install than traditional roofs, require intensive maintenance, irrigation and drainage systems, are limited by climate conditions, and can be costly to repair.