What's the general roof support thickness under an aluminum roof. I can easily walk my fat butt over the entire roof without any problems. I want to put some screws in the roof to hold solar panels.
I've seen RV roofs that were 2x2's with 24 oc and could barely support their own weight. I've also seen roofs that where built on a trestle design that could (and have) supported the weight of many people.
With out knowing the maker of your rig the only answer is "not enough info"
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