On Apr 28, 11:16*pm, JIMMIE wrote:
I want to tile my back porch with some large glazed terra cotta tiles.
The fllor is concrete but it has a few cracks in it. The edges of the
cracks are level and seem to be stable. How can I make sure the tiles
dont crack. I was thinking over covering th efloor in backer board and
let that float on the concrete and put the tile on top of that. The
porch is not covered, I guess you would call it a patio 14X28 ft.

Use a crack isolation membrane.
http://www.google.com/webhp?hl=en#hl...isolation+tile

R