ianjones wrote:
I am preparing to install ceramic tile in our master bedroom. While
doing that I will be replacing the toilet. Thinking ahead, will be
there be an issue with the level of the toilet flange in respect to the
toilet and how they mate up? I will be adding 1/2" of cement board plus
tile and mortar and I am afraid there will be a gap.

Any suggestions?

Thanks.

A new flange on top of the tiles? Or tile around the old flange and
use longer bolts and a wax seal with a platic extension to reach the
drain:

http://www.toiletology.com/wax-ring.shtml
http://www.acmehowto.com/howto/homem...t/waxring3.php
http://www.plumb-bob.com/order.html

These should get you started...