We recently had a new bathroom built in basement. The tile job is suspicious to say the least ( based on watching too many home improvement shows). The tiles were put on walls not by buttering evenly the tile or the wall; instead he used a blob of mastic and stuck tiles on wall and in turn there are gaps behind the tiles. Is this even acceptable technically? What are my risk? When we asked… he said that he was doing so to ensure even layout?
Shower – Is it acceptable that mastic was applied as a blob on the back of tiles in shower stall
showertile
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Best Answer
The mastic should have been put on with a notched trowel. A notched trowel is the industry standard and the best way to ensure the tile will be secure and seat at a uniform level. I would not want a hack job in my bathroom, I hope a backer board was used or at least green board.