Have tile on mud room over ground, no cellar, unheated.?
White spots appear on grout. Could this be from frost or dampness? Nothing gets rid of it. Any suggestions to get rid of and avoid this?
White spots appear on grout. Could this be from frost or dampness? Nothing gets rid of it. Any suggestions to get rid of and avoid this?
Anonymous
Favorite Answer
Sounds to be hygroscopic salts coming out of the ground.The only way to get rid of it is to lay a membrane under the tiles