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Build & Remodel

Tile installation

We are placing tile in half bath.  We have to undercut the door jams to place tile under them.  How much space should I allow for the mortar?
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Posted 2016-04-13T15:14:23+0000  by NNP NNP

Since you are working on a floor application, you mastic bed will need to be a tiny bit thicker to sustain foot traffic.

Trowel depth is one way to spread a deeper pattern.

V-notch trowels in the same depth as U-notched or square trowels will also spread less because of the shallow bottom of the V-notch.

In general, this depth chart acts as a guideline:
3/16″ to 1/4″          V-notch= Mosaics tiles up to 4-1/2″ glazed wall tile
1/4″ x 1/4″ U or Square notch
= 4″ to 8″ tile
1/4″ x 3/8″ U or Square notch= 8″ to 16″ tiles
1/2″ x 1/2″ U or Square notch= 16″ and larger

When in doubt, follow the recommendations on the mastic package.

Hope this helps,

Pat InPaint

Posted 2016-04-13T16:13:25+0000  by Pat_HD_ATL
The mortar layer would be about 1/8" thick for larger format (12"+) which are pretty common these days.  You may want to allow yourself a bit of extra "wiggle room" when undercutting your doors.  That will give you enough room to get the tile in there and make any adjustments.  A little caulk at the end of the project will hide the gap if necessary.
Posted 2016-04-14T01:05:36+0000  by Adam444
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