Floor tiling through existing house into extension.

[JimO]

I want to tile from a new kitchen extension back into the existing house and into a living room and a utility room.

I have seen in other houses when this is done a crack in all tiles right where the new and existing meet. I presume this is down to them settling differently and cracking the tiles.

Is there anything I can do to stop this happening?

 

[23vc]

Wouldn't have thought there should be any movement in the floor, I've done a few of these and never had any issues, screed not dried out possibly?

 

[Lee@TileTown]

The crack you mentioned is probably down to the different substrates and or lack of movement joints. Alot of fixers would recommend a de-coupling mat too.

 

[vinn]

Good advice above.
Under "movement joints" one more thing would be using transitions or thresholds of some kind at doorways rather than free flowing tile from room to room.
Matting is great for different "substrates" (& crack work) but its very expensive esp. the most well known brand.

 

[chappers]

If both the floors are solid and not really subject to movement you could consider using a much cheaper anti-fracture membrane rather than a full scale de-coupling membrane also some of them are so thin that you could get away with just using them over the problem area, maybe also consider an adhesive with a bit of flex if you are overly concerned