Hair Line Cracks In Tiles

[cityone]

Hi lads, tiled a complete bathroom about 10 months ago (floor + walls to ceiling) and customer has been back in contact to say that some of the tiles have cracked, i went to see them and right enough there is a very fine crack line on some of the tiles, i must have done about 150 floors and this is the first one i,ve had to return to. I use the same method every time, (6mm hardie backer, glued, screwed and fiba tape on joints) told the customer that i will return tomorrow and he informed me that more cracks have appeared, i feel as though my work and system is tried and tested so is this a problem with the substrate floor??? any advice would be welcome, thanks in advance.

 

[Andy Allen]

Is it just the floor that's cracked. ?
And what tiles were fitted?

 

[cityone]

Is it just the floor that's cracked. ?
And what tiles were fitted?

The floor seemed ok when we first started the job as for the tiles the customer provided them, ceramic floor tiles from homebase.

 

[White Room]

You did brick bond the hardie boards ?

 

[On one]

Do the cracks follow the pattern of the Hardiebacker or the floor joists?

 

[cityone]

You did brick bond the hardie boards ?

yes

 

[cityone]

Do the cracks follow the pattern of the Hardiebacker or the floor joists?

I wont know this until i take up the cracked tiles tomorrow.

 

[On one]

I wont know this until i take up the cracked tiles tomorrow.

Just thought you might have an inkling as to how the joists or boards went before you start digging

 

[On one]

How many M2?
Homebase tiles would be my main concern

 

[cityone]

Just thought you might have an inkling as to how the joists or boards went before you start digging

To be honest the builder i do a lot of work for laid the hardie backer at the time, i arrived an hour later.