hi Roy, yes, its limited somewhat by the UV restriction. i’ve mitigated against any mech failure by using exterior varnish on the roof underneath and i now have two layers of poly covering in place. if the first does crack or become porous the layer underneath should hold (and should be UV protected by that above). The weight saving and cheap cost is worth it. It took ten minutes to cover the roof.
there’s some good rubber roofing products out there too so i’ll watch the performance of the Easytrim and keep the forum updated. let me know if you find anything better.
regards
T