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Unread 07-06-2007, 06:30 AM   #15
Trowel Monkey
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Join Date: Jan 2004
Location: Kent, Washin'ton
Posts: 11,467
Are you certain that your sub-floor consists of only 1/2" Luann? Firstly, Luann is not a suitable substrate material even if you could find it in 1/2" thickness. Next, your sub-floor needs to be a minimum of 3/4". For tile, you should then be adding a second layer (at least 3/8") laid perpendicular to the first.
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