Dot and Dob applied ceramic tiles in a bathroom Page: 2

[Alf]

Are there potential problems should they be with full wall adhesive coverage

 

[Andy Allen]

sounds like he's used tubbed adhesive..

 

[Alf]

The circles are after a shower or bath and dry out after a couple of hours when the heating is on. Work only done before Xmas and tiles direct to wall which is external. Asked the tiled a few questions about using dark adhesive on a light tile but not very friendly in response, didn't know to look out for d and d.

 

[Cris]

the cold from the wall is transferring thro the adhesive to the tile which is condensating causing the wet circle. The air pocket between the dabs is acting as a barrier hence warmer spot around the dabs. once heating is on the tiles uniformly warm so no condensation.... just my thoughts

 

[Alf]

Does this lead to build up of moisture behind the tile for future problems

 

[Cris]

all depends on the quality and integrity of tile and grout. at very least you should seal grout with a quality sealer. I think you will always have the wet circle problem until you ripout and redo.prob board walls before tiling if they cold