Originally Posted by tobeamiss
That plywood is very deceiving. Guaranteed you'll find rust under there. Besides you take away headroom if you're going to insulate over the plywood. I think if you go down to bare metal, you'll be happy you did. The plywood isn't that hard to remove once to get a system of using a 48" crow bar and 4 lb hammer. Mine came up pretty easy that way and I found rust in places I really didn't think there would be any where the wood looked good.
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We decided to take up the plywood, but now I have a couple other questions. We weren't planning on installing insulation, but we were going to do a layer of silver radiant barrier, with vinyl flooring on top. Do you think that will work on top of the bare metal?
Also, when mounting items to the floor (sink, bed, etc,) should I be using stainless self tapping screws? Thanks for your expertise!