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.

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Advantages:

• Less air pollution and greenhouse gas is produced when cooling demands are lowered.

• Green roofs can beautify an environment.

• Green roofs can reduce and slow stormwater runoff.

• A green roofs acts as an insulator for a building which reduces heating and cooling demands.

• Green roofs improve indoor comfort by reducing heat transfer, resulting in a more comfortable temperature.