Since this video i learned about a router bit for profiling the edge of window sills which is easier.
Tile trim around window sill.
In most cases tiling a window sill and grouting the tiles takes a few.
When installing the tiles around windows make sure you first secure the tile corner trim in thinset.
Use around sinks tubs and showers.
Paintable silicone caulk can be used around the outside of window units to properly seal the window and the siding edge or around the entire door unit.
That way you can make sure the grout lines of the recess are on the same plane as the wall.
Then measure around the window as to cut the tiles with a score and snap cutter or a wet saw to fit into location.
Use around the perimeter of windows to help seal the window to the header sill jack stud and jamb.
Pry off the trim and build a molding from milled stock.
Here s a link to the router bit https amz.
Set tiles spread and comb thinset.
How to tile around a window with wickes subscribe to the wickes here.
The edge you will be.
Make the internal width of the molding 1 4 inch larger than the tile.
If your trim tiles are larger or smaller than the tiles along your edge measure the edge of your tiled surface then divide that number by the width of your desired trim tile.
Select tiles in a style that accents the decor of a room and include bull nose tiles to trim the outer edge of the sill.
If the trim tiles are the same length as the edge tiles count the number of tiles along the edge then buy that many trim tiles.