Heated Tile Shower Floor
Do I need to use special grout for tiling the shower floor?
The builders have left and the grout in the shower on the floor has cracked and left spaces between the tiles, the same thing has happened in the other bathroom which has underfloor heating.
The under laying cause needs to be determined.. It sounds to me the tile is coming loose for the grout to come out as you describe.. Rap on the tiles w/ your knuckles. Do it where the grout is loose and off to one side where it seems to be holding.. If the loose grout tile sound “hallow” then they have lost the bond and need to be fixed..Either way the builders/ installers need to come back and address this issue..Any grouting at this point will be a waste of time and $ till the under laying cause is fixed GL
Leelanau County 10-Acre Estate w/ newer Custom Built Home & Huge Pole Barn – $439900