Can limestone tiles be laid on a floating floor without cracking?

[Caleyfox]

The tiler has seen the area to be done and has had a sample of the tile. What form should expansion joints take if there is a BB pattern?
Thanks Caleyfox

 

[GazTech]

Expansion joins can only run one way with BB pattern, you cant put expansion in zig- zag way...lol

 

[TilingLogistics]

The tiler has seen the area to be done and has had a sample of the tile. What form should expansion joints take if there is a BB pattern?
Thanks Caleyfox

Expansion joints should be every 10 linear metres on a run. As Garry from BAL says they are fixed across the grout line. I would also adopt a belt and braces approach and install a Silicon bead all the way around the exterior walls as well. Preformed expansion strips are available to purchase from Schluter and Dural to name but a few. You can also get the insert to match the grout.

Kev

 

[Branty]

On this floor the architect specified plenty of movement joints, the job was 350 sqm's in total. Where the expansion joint comes down the tiles, you need to trim enough of each tile the butts up to the joint for it to look right.

 

[Branty]

You can see it better here.
On the centre expasion joint, which was 10mm, with a 3mm grout joint either side. We had to trim off 8mm from each tile.

 

[TilingLogistics]

You can see it better here.
On the centre expasion joint, which was 10mm, with a 3mm grout joint either side. We had to trim off 8mm from each tile.

Danny,

Can I ask why the expansion joint was run vertically as opposed to horizontally? After all the room doesn't look that wide to me!

Kev

 

[tiler burden]

and what a dogs r's that job looks!!! architects should stick to what they know, designing building's and leave engineers and surveyors to do the science.

answer to kevs questions...

if that building is a new build, then the settlement will take place on the outer walls, which could?? form stress on that section of the floor. as you can see, if the footings where to settle slightly then the stress would follow the floor expansion joint which is parellel to the outer wall. this puts the decision to use a brick bond pattern under the microscope!! obviously a pattern that incorporated the expansion joint would have been a more asthetic.

 

[Caleyfox]

Branty
On the photo (with the spirit level coming out of his head) - Is that a Diramat that is being tiled onto and is it on top of plyboard?

Regards

Caleyfox

 

[Branty]

No I took the picture. The matting is Dural Matting.
The building is an old building, The screed was about 20 years old [last time it was refurbed].
The screed had cracks running down and across the floor, at regular intervals. The archiect wanted expansion joints running above where cracks had formed in the screed.

The row of dark ones dont look that dark in the flesh.