Not just any roof can be turned into a green roof. It needs to be structurally strong enough to bear the extra weight and waterproof. If it's strong enough or reinforced, it can then be covered with a waterproof membrane, covered with a growing medium and plants.
But why would you want to do that? There are all kinds of environmental benefits. Reducing stormwater runoff is one major benefit especially if you're in a city or need a body of water that could be contaminated.
A Brief Summary of Living Roof Benefits
- improved air quality
- energy conservation due to improved thermal performance
- increased green space
- general health benefits
- reduced urban heat island effect
- noise/sound insulation
- good use for recycled materials
Beth can give you more details and tell you how to go about turning one of your roofs into a living roof.
Let me know if you do! I'd love to make a video of it.
In the video below, you'll see some colorful bicycle tires that have been planted in on a roof that belongs to a Burlington, Vermont B&B overlooking Lake Champlain. This was part of a creative living roof experiment Beth was doing.