Advantages
- Extended roof life: a green roof protects the waterproofing membrane from climatic extremes, UV light and mechanical damage doubling its life expectancy.
- Provides thermal insulation in the winter and helps to cool buildings in the summer.
- Excellent sound insulation.
- Growing mediums can be made from recycled materials, such as crushed bricks.
- Reduces water run-off
- Encourages biodiversity.
- Provides attractive green spaces
Disadvantages
- Where the roof pitch is steeper than 40 degrees, a green roof is indefeasibly expensive. (cost http://lisantu2013.blogspot.co.uk/2013/12/what-is-approximate-cost-of-green-roof.html)
- Plant growth is unpredictable because of airborne seeds and those dropped by passing birds
No comments:
Post a Comment