Acceptable Tile Level Difference

[Forum_H]

What is the acceptable difference in tile level, the change in height between tiles?

0.5mm? 1mm?

I have just had a granite floor laid by a recommended tiller and I’m not 100% sure of the quality of workmanship. A lot of the tiles are at different heights to each other and I’m not sure if it’s me being over fussy.

It was laid on a concrete floor, the tiller put levelling compound down a few day before putting down granite tiles.

I think I have attached photos!!

Many thanks

 

[david campbell]

being totally honest with you,you shouln't be able to notice any height difference at all,but i don't think 99% of people would be able to notice 0.5mm of a difference unless it was a polished tile

 

[basshunter]

think theres a british standard for this.maybe one of the big boys knows?:8:

looks like a nice job though!

 

[Alan.P]

Mmmm, definite lippage going on there, how many tiles are like it ?

 

[basshunter]

...............

 

[Forum_H]

Generally most of the floor has a difference of about 1mm between each tile but there are about 6 areas that are bad, the worse being the photo with the 2p in it. I was expecting the floor to be perfectly flat. The really obvious problem started around the plinths, where we have obvious belly gaps – can get a pound coin underneath. Then we started to examine more closely and found the lippage. Also, some tiles appear ‘flawed’ – probably granite variation, but tiler has managed to lay all the flawed tiles in the main areas! One right in front of the hob is badly scratched – not sure if something to do with the sealant or whether the original was damaged.

 

[Olz]

What siz and make are the tiles, how much were they and where did you buy them from?

 

[Forum_H]

Tiler got them from CTD (That's what he said) 30.5cm, Gemini Graniti Polished Absolute Black, £79 Sq M.

 

[Olz]

They look a bit light in colour for the absolute black but it might just be the reflecting light.

Anyhow from the TTA website.....

The British Standard for tile fixing, BS5385, suggests the following tolerances on finished work.



Flatness and variation from plumb:
± 3mm under a 2m straightedge.


Variation across Joints:
±1mm for joints less than 6mm wide
±2mm for joint 6mm or more wide

 

[Olz]

I should add that the British Standards are guidelines only.