TKW wrote:
Must EPDM membrane be solidly adhered to plywood substrate on installation? Wouldn't a loosely attached membrane result in premature failure?...................
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If something is flopping around up there while driving down the road then over time fatigue will set in and weaken the material. Flexing material is never good for it's longevity especially if it's wind generated.
Now I know for certain that many roofs are not glued down 100% but I would suspect that gluing all the edges would be a priority.
Happy trails,