expansion joints

[davebates]

hey was just reading the chaps post whose having the problem with the tiles cracking and a few folk mention expansion joints are these those strips with the rubber in between and in what situations would they be used. i know how timber moves and changes shape from the laminate floors and timber work ive done in the past. i didnt realise that tiles would move as much but then i suppose all material,s expand and shrink to some degree due to temperature and moisture ????

 

[dilz000]

Dave it's not exactly to do with the tiles, but the substrate that they are laid on top of.

 

[doug boardley]

a lot of peeps don't realise about substrate expansion Dave and look horrified when you start mentioning the need for expansion joints, but expansion joints look a helluve lot better then a heaved floor.

 

[davebates]

very true but in that case do you have an expansion joint between the tiles or between the tiles and the substrate

 

[Mike]

between the tiles, there's different types of purpose made joints, you could also use a wide silicon joint to match your grout

 

[Geoff Hunt]

Is there any way I can obtain the BS section on the distances for movement joints? The standard is expensive to buy as a complete set and I only need part 4 2009. I need to know the recommended expansion joint distance for ceramic tiles in external applications.