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How do you tile a bathroom wall that has a window?

We are tiling around our new tub and about 3/4 of the way up the wall. We have a window that is just off the tub, so the tile will wrap around about half of the window. We aren't sure what the best way to go about this job is. We have the green board moisture-resistant drywall up, and are planning to use a primer and then begin tiling. I need to know the best method for going around the window, which we plan to trim. Would we trim first and then butt the tiles up against the trim? Any suggestions would be very much appreciated!

Burf7 years ago
The easiest way, and I my opinion the best, is to install a waterproof sill. Marble, granite or some other stone would be my choice. Let the sill extend over the green-board about 3/4 of an inch. Then just tile up to the sill overhang and around the window opening. After grouting the tile, use silicone sealer to seal all around and underneath the sill.
Burf Burf7 years ago
Forget to mention. install the sill so there is a slight slope towards the tub/shower so water run back into the bath and not stand against the window frame.
BCJennyP (author)  Burf7 years ago
Thanks for the advice!
The window isn't actually in the shower area, so wouldn't get wet, but it is in the area we want to tile. So if we used a regular trim, we would install the trim first so it is overtop of the greenboard, and then tile up against the trim, and then grout and then use the silicone sealer?
Re-design7 years ago
Or if you don't want to use a solid sill, you could use "bull nose" tiles that are rounded on one edge to make it easy to go around corners or terminate tiles at the top.