I'll give it a try and get back to you. The Hurculiner has rubber partials in it so as its rolled on it leaves a nice stippled finish. I'm pretty sure that you would need some kind of backer to prevent the roof stringers from telescoping through. Here's a photo of a ice fishing house I built. The rubber membrane is glued down with contact cement to a 1/4" plywood sheathing. The edges are wrapped over and stapled to the side and the cut edge is covered with an alum trim. My roofing came with seams in it every 10'.
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