This is more environmentally friendly than bituminous based products which are also horrible to put on (having done it myself!).
Rubber is a natural product and encourages tree planting so can’t be bad. Might get hot in the sun though – a very dark material. Isn’t global warming reduced by having a light roof colour? A big area of this is a bit dull looking. You could always thatch a shed but this is not really for those applications despite this nice image (photos from Firestone’s site).
It is a durable roofing for all sorts of residential flat roofs. Such as porches, extensions, garages, balconies, trailers etc. Anything flat really!
We still plan a DIY green roof, this might be useful as the underlayer. Has to be 100% waterproof, so this on top of a normal roof should protect the rof from water damage.
Their site is at Firestone Rubber Cover