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.

Jimmie

On Apr 28, 11:16=A0pm, 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=3Den#hl=3Den&q=3Dcrack+isolation+tile

R

RicodJour <r...@worldemail.com> wrote:
> 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=en&q=crack+isolation+tile

Such as Schluter DITRA.