Water damage on hardwood

Old 11-06-03, 11:15 AM
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Question Water damage on hardwood

My oak floor recently sustained water damage over one third of the room. I think I should probably refinish the whole floor though rather than just the damaged area, to make everything look uniform. My question is- do I have to sand the floor down to bare wood or could I just lightly sand it to break the surface of the current finish, and then re-poly the whole thing?
Also, I have never refinished a floor before... any tips on both sanding and polying? Thanks in advance!
Old 11-08-03, 06:39 AM
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If the boards are cupped, make sure you check the moisture content of the cupped planks before sanding!

They need to be the same moisture level as the undamaged floor.
If you sand the floor before the excessive moisture has dried out of the boards, you will have the opposite of cupping, crowning with those boards when they do dry out.

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