I'm having a problem with my ceramic floor tiles. I have laid them a few weeks ago and when my dogs pee on the floor it leaks through the grout. I have re-laid numerous tiles now and i'm still getting the problem. I used Unibond Adhesive/Grout to first lay the tiles, left it 48 hours then grouted them with the same stuff. The grout is supposed to be water proof, why is it causing me a headache with the dogs peeing on it? do I need an extra sealer or something?
P.s. my tiles were laid on concrete floor.
P.s. my tiles were laid on concrete floor.