Edwardh1
Member
We have a slab floor office. Had carpets in it for years on a raised concrete slab floor . No issues.
Five years ago, we took the carpet out and put in sheet vinyl tile- a good grade. A year ago in the area where the tile is laid over some plumbing trench cuts , we get a black mark in the vinyl tile where the edge of the trench is, it is faint and has stayed about the same for the last year (not getting worse).
Guess is its moisture- question is if we ever take up the tile, how do you prevent it? What do you paint on to seal the edge og the trench cut, or does the cement that fills the trench have to be a certain type..
Five years ago, we took the carpet out and put in sheet vinyl tile- a good grade. A year ago in the area where the tile is laid over some plumbing trench cuts , we get a black mark in the vinyl tile where the edge of the trench is, it is faint and has stayed about the same for the last year (not getting worse).
Guess is its moisture- question is if we ever take up the tile, how do you prevent it? What do you paint on to seal the edge og the trench cut, or does the cement that fills the trench have to be a certain type..
