Quote:
Originally Posted by gregpark
Tyvek is a moisture barrier and would work just fine under hardwood. So would wax paper. Rosin paper would be pointless though. You probably wouldn't have a noise issue with any of the suggestions. I do this for a living and don't take any chances that's all. You need nothing at all if you live in the desert and have no moisture under your house.
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That was my thinking, thank you for the info.