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Unread 05-04-2008, 06:23 PM   #2
Moderator -- Mud Man
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Join Date: Jan 2003
Location: Princeton,Tx.- Dallas area
Posts: 33,888
No need for a 1/2 inch notch, go down to 1/4x1/4 inch. Small finish nails can be drove into some of the joints to help keep the sheets from sliding. If this is a wet area, use thinset. If this is a backsplash or wet area, use mastic instead. It tends to slide less. There are some non sag thinsets on the market also that would help.
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