Dazzi0i - It is rated as a long term external vinyl so with correct installation it should last 7+ years, on close inspection of the vinyl I've noticed when stretched it is weaved plastic so unlike a printed vinyl you will have no chance of fading.
Cost wise, if we was to install it you'd be looking between £150-200 for a roof, if you was to do it yourself you could most probably get it from a 1.5m x 1m wide roll which will be £70-80. I will be able to offer a firmer price on that size once we get some in, which will be the early this year. :thumbs: