105sqm of tiling how many expansion joints

[Chazb03]

Hi could anyone tell me what's best to do I have a job tiling 105sqm in barn conversion it's on Ufh screed floor tiles are porcelain 3 different sizes barn has two separate rooms downstairs that I can easily spit with joint and the rest is in a big t shape question is how many sqm can be done without expansion joint grateful for any advise cheers charlie

 

[Ajax123]

Every ten linear meters. The British standard does not offer guidance on aspect ratio but I think the general guidance is no more than two to one.

 

[DHTiling]

If the floor is heated then the size is less. Around 5 Mtrs

 

[Chazb03]

Thank you for reply I think I will split area with 3 joints as its shaped like a t with flexible adisive I hope this will be ok

 

[porli]

Every 4 meters you .

 

[Time's Ran Out]

Surely for a floor of that size the movement joints will already be in the substrate?
What is the maximum width and longest run of tiling, are there any pillars and what is the construction/make up of the screed?

 

[Ajax123]

Surely for a floor of that size the movement joints will already be in the substrate?
What is the maximum width and longest run of tiling, are there any pillars and what is the construction/make up of the screed?

That depends on the screed type and the zoning.

Any screed should have isolation joints between independent zones an across door thresholds. Sand cement should be further split into maximum 15 m2 bays according toNHBC but calcium sulphate would only require joints at the points already mentioned.

 

[Rookery]

Surely for a floor of that size the movement joints will already be in the substrate?
What is the maximum width and longest run of tiling, are there any pillars and what is the construction/make up of the screed?

Whats the betting there wont be any in the substrate, or am I just being cynical.

 

[Brian the Tile]

i would say in all doorways

 

[Houston]

depending on the run every 30m2