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Staple up Job - tight to subfloor or leave gap?

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Dan_34
Dan_34 Member Posts: 3
Thanks for any help in advance.

For staple up jobs under 3/4" fir plywood and finished floor of engineered hardwood and ceramic tile should the 1/2" Pex be
attached tight to the subfloor or leave a gap?

If it is tight will there be noticable noise during expansion and contraction?

If you gap the tubing, how much? Enough to allow nailing of the hardwood?

Thanks

Dan S

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