Flooring Tile - Tiling inside of window jamb

When tiling the inside of a window jamb, how should the tiles be adhered? Should durock be put on the jamb? It is only about 3 inches deep - thats tough to cut a piece that slim - isnt it?

Can I just thinset directly to the wood jamb?

Should I silicone it directly to the wood jamb?

Any thoughts?

Im having a hard time visioning this. When you say "window jamb" I know you are not talking about the tracks the window slides in so what are you talking about? What kind of window is it and exactly what are you proposing to cover with durock?

OH, I see now.

Ok, I guess Im using the wrongterm - and its not the jamb.

The window is set back from the durock about 3 inches or so. So, the plan is to wrap into the window frame (90 degrees from the wall).

I know its a fairly common thing to do when there is a window in the shower. I just cant explain it any better.

The wall will get tiled up to the window, ending with a bullnose. Then, square to that, tile leading into the window frame.

I get in now. Yes cover with cement board, tape and mud corners. Redgard areas by the window and about 6 inches out onto the walls as these areas will be prone to water problems. especially the sill.

do I thinset the the cement board to the inside of the window frame? Its a bit thin for screws - theyd probably crack. Im assuming thinset will stick to anything - including wood.

No thinset just screws to hold it in place.

why not the thinset? would it cause a problem to use it - or just unneccary?

I wouldnt cause a problem its just unncessary. Unless you are using a high end latex modified thinset - maybe dryset with additive it wouldnt bond anyway.