1

floor tile

Floor grout crack^^

enter image description here

Wall cracks

New construction (built in 2022) - 1.5 years old.

Noticed cracks in my grout in the shower and then noticed a crack in the grout on the floor. I showered once in the morning and then not anymore after that after noticing the cracks.

There are drops of water coming out, particularly when i tap the tile ABOVE where the crack on the floor is.

I know grout is porous and so was wondering if this was normal. I believe theres a moisture barrier behind the wall. My thoughts were to wait till it drys - then patchup/regrout some of the cracking on the wall and floor.

My concern is theres still droplets of water slowly coming out of the floor grout crack. I don't think theres a leak as I checked around and below the floor of this shower.

Thoughts?

2 Answers 2

2

I would have expected less water with a small crack like that. So, I would be inclined to think that there is a leak.

  • While grout is porous, they add a compound to make it water proof (downunder anyway). But water will get in via the cracks.

  • If you are able to not use the shower for a few days, do that and see if there is still water at the bottom. if there isn't then its just the grout.

  • I would get it repaired soon. Even though there should be waterproofing under/behind the tiles, it is best not to test it but letting water get behind the tiles.

  • Its best practice (again downunder) to have one vertical grout line flexible, to allow for expansion/contraction and very slight movement.

1
  • thanks i let it go for a few days and it dried. i regrouted the wall (there were multiple cracks like the one i shown) and i think im good now
    – Mr.Vo
    Aug 25, 2023 at 18:14
0

Grout is cosmetic, i.e. it performs no essential waterproofing function in a properly constructed shower enclosure. Then again, bad shower installs are common as dirt.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.