So I’m looking to convert an outdoor building/shed into my home office. I want to put vinyl flooring down but obviously not directly on the concrete slab. I was planning on using a batten system to put down 2x4s and then put the subfloor on top of that and then the vinyl flooring. The concrete is very raw and unlevel so I think I would have to put something over top of it. So here’s my question: should I put some kind of vapor barrier down to prevent the wood from getting moisture into it and rotting from being on the concrete? Should I just seal the concrete instead? [attach]107606[/attach] [attach]107607[/attach]

Hello, I am wanting to remove the middle support between the two garage doors and put one 17' door in its place. The roof above the garage is flat. It currently has 2x12s spanning that width supported by a 2x4 wall consisting of 2-2x4 about one foot wide. The base of that middle support wall is not bolted to the slab, and is starting to rot out. It isn't even 100% vertical; it's been knocked into the garage a little bit. It isn't currently supporting much weight, if any, with no consequences. The current span of each garage door is about 8'. The new span would be about 17'6". Can the 2x12s span that or do I need to replace them with something else in order to remove the middle support wall? Thanks for your help! Bill [attach]107915[/attach] [attach]107916[/attach] [attach]107917[/attach] [attach]107918[/attach]