The company I work for (in snow country) built a sky lodge and restaurant at the top of the mountain at a local resort. This product was specified by the architect and has performed well in a pretty extreme environment with very high winds and 20+ ft of snowfall in good years. I wasn’t involved in that build as it happened before my time with the company, but I understand it installs over sleepers and our local roofing professionals don’t have any reservations using it. Flirted with it on a project but the owner chose to go standing seam instead. Winters up here can be hell on roofs.
