Cracked grout lines!!

[strax]

Hi Guys,

I bottled out of tiling our new extension, 55 sq m of 600x 600 polished procelain. Our "professional" tiler was in a hurry to finish on a very warm day, off to play golf.
He grouted very quickly (using "Andrews grey gorut with flxi additive). (3 hours to finish the whole job, polished and out)
Now we find hairline cracks down some grout line, some nearly the length of the tile, some very short (2-3mm long)

1. Will it harm if left.
2 What should we ask Tommy to do to rectify (if anything)?#
3 it was "cash in hand" : a lot of it.

I look forward to hearing from you,

Iain

 

[DHTiling]

Hello Iain and welcome....

Either the heat was to warm for grouting to be carried out or insufficent additive was used, either way it needs redoing and your tiler should be called back...

 

[White Room]

Same as, I'de be calling the fixer back.

 

[doug boardley]

aye, me too

 

[beanz]

Hi Guys,

I bottled out of tiling our new extension, 55 sq m of 600x 600 polished procelain. Our "professional" tiler was in a hurry to finish on a very warm day, off to play golf.
He grouted very quickly (using "Andrews grey gorut with flxi additive). (3 hours to finish the whole job, polished and out)
Now we find hairline cracks down some grout line, some nearly the length of the tile, some very short (2-3mm long)

1. Will it harm if left.
2 What should we ask Tommy to do to rectify (if anything)?#
3 it was "cash in hand" : a lot of it.

I look forward to hearing from you,

Iain

1. why would you even think about leaving it!?!
2. As above.. Call him back
3. That's between you and him, and doesn't (in my opinion) need to be aired here.

I don't think the fact that he was in a hurry would have any real bearing, like Dave said, probably too warm. Does the room get a lot of direct sun? Or could be incorrect mix; i've never used grout with a flexi additive, so can't be sure on that.

Another possibility... What was the substrate? Are you sure there's no movement?

 

[davy_G]

Im with Beanz here, find out why the grout cracked before re-doing. ie make sure there is no movement or is it heat related

 

[strax]

Thanks Guys,

You've given me a bit more confidence to give him a call back.
After a clean up afte the weekend we find some of the cracks are qiute large, with the grout flaking away: I have to assume this is the floor moving.

Should I expect him to rake the grout out, or can he bung some more in on top??

Thanks again,

Iain

 

[dhsanta65]

If he is to re-grout then the grout it has to be fully raked out then re-grouted.
If it is caused by to much movement in the floor under the tiles then no matter how many time you re-grout it will not solve the problem.
Lets hope it was due to the heat as said in previous.

 

[DHTiling]

Movement...i presumed it was a screed floor...is this a timber floor..? i.e a floating floor.?