Try Agian

Thanks Troy. I apologize for not responding to your previous post. I think that both of your options are viable from a metal roofing security standpoint. However, I really am not qualified to addressed the structural integrity or whether it meets your local codes, though both methods sound pretty beefy to me. Most metal roofs have been tested when installed over any sort of solid deck along with underlayment. Typically the decking they are tested on is 5/8" plywood, so anything thicker or stronger than that will be fine as well. Metal is a very low weight roof compared to many products so that works in your favor. Because this is an entryway, am I to assume it's "open air" or is it over a conditioned spaced? One thing you need to think some about is condensation ... if over a conditioned space warm moist air from inside reaches the cool back surface of the metal, it will condense. I hope this helps. Feel free to email me direct at [email protected]