DIY Home Improvement Forum banner
1 - 11 of 11 Posts

·
Registered
Joined
·
2,192 Posts
Discussion Starter · #1 ·
so had tiny bathroom completely done about 5 months ago. my tile guys said the grout would crack and it just needs to be scraped out and redone . makes no sense. well here we are a few months later and it cracked. anyone know what he’s done wrong. grout in my other house hasn’t cracked yet in 10 years .
 

Attachments

·
Contractor/Engineer
Joined
·
1,942 Posts
@Fix'n it is 100% correct - any time two surface planes meet (wall to wall, wall to floor, wall to ceiling, shower seat to wall, etc. etc.) , the joint has to caulked to allow for the slight movement due to thermal expansion - otherwise you have cracks and no amount of scratching it out and replacing with grout will fix it.

Caulk to match your grout should be found near where the grouts are sold - NOT in the paint section. Read the labels to determine if you need sanded or unsanded caulk. The width of the gap is the determining factor.
 

·
Registered
Joined
·
2,192 Posts
Discussion Starter · #4 ·
@Fix'n it is 100% correct - any time two surface planes meet (wall to wall, wall to floor, wall to ceiling, shower seat to wall, etc. etc.) , the joint has to caulked to allow for the slight movement due to thermal expansion - otherwise you have cracks and no amount of scratching it out and replacing with grout will fix it.

Caulk to match your grout should be found near where the grouts are sold - NOT in the paint section. Read the labels to determine if you need sanded or unsanded caulk. The width of the gap is the determining factor.
Thank you guys. So the grout should be scraped out or the caulk can go over it?
 

·
Contractor/Engineer
Joined
·
1,942 Posts
I'd dig out the stuff that has failed so you get a good bead of caulk in the gap. Follow good caulking guidelines - if the gap is too deep, use backer rod to help fill it in. If required you can apply caulk twice if it were to shrink a little and give a "sunken" appearance - however, if the tiling was done decently, the gap should be small enough that one pass and smoothing with a wet finger and some overspread cleanup and it'll be great.
 
  • Like
Reactions: Fix'n it

·
Registered
Joined
·
9,128 Posts
@Fix'n it is 100% correct - any time two surface planes meet (wall to wall, wall to floor, wall to ceiling, shower seat to wall, etc. etc.) , the joint has to caulked to allow for the slight movement due to thermal expansion - otherwise you have cracks and no amount of scratching it out and replacing with grout will fix it.
So your tile guy doesn't know this ???
 

·
Contractor/Engineer
Joined
·
1,942 Posts
So your tile guy doesn't know this ???
Yeah - building trades are busy... and as a result many tradesmen meander to where there is extra cash laying around...without the experience, or the pride, to do the job correctly.
 
1 - 11 of 11 Posts
Top