tile tolerances

[Dib Dave]

hi guys ,just wondered what tolerances are between joint widths 2mm,customer being ultra picky says expects every tile 100% flat to each other,i said tolerance of 1mm between tile lippage,i generally use 1pence to gauge,any opinions

 

[DHTiling]

What type of tile is it...are the edges rectified..?

 

[Dib Dave]

ceramic wall and floor tile 10mm unglazed,edges are not rectified

 

[Spud]

lippage cant exceed 1mm on joint widthth less than 5mm

 

[david campbell]

i would expect them to be perfectly flat,you should be able to put a spirit level across your work and be no more than 2mm in about a 1200mm level

 

[DHTiling]

I use the flat of my hand and eysight to feel and sight any lippage and if any lippage is there i alter to suit....Tolerances have to be strict..if it can be seen by eyesight then it is too much..

 

[Dib Dave]

so within standard as customer,is getting a second opinion,i think ,customer is going over tiles with magnifying glass,not got paid yet either,say they are waiting for second opinion/report,

 

[DHTiling]

mmmm. have you taken any pics yourself..?

 

[Ajax123]

BS5385 part 1 section 4.1.8.2

There should be no appreciable differential in level across joints and the maximum deviation between surfaces across joints, including movement joints, should be as follows

1. Joints less than 6mm wide - 1mm deviation
2. Joints 6mm and over - 2mm deviation

This is mirrored in Part 3 of the standard - section 7.1.4

Not sure a 1pence peice is 1mm or not though......

 

[BTB]

1 penny is 1.65mm thick.