Bruce Watt
TF
Hello All,
I hope there is someone here that can advise on a tiling problem I have.
I have had two shower trays professionally tiled with 250 * 400 mm tiles. The trays are 800 * 1200 mm and the walls are 2400mm high. The walls are tiled tray to the ceiling, so full height. One shower has three sides tiled and the other has two sides tiled. Just the area of the showers trays has been tiled. Both showers have never been used. The showers where successfully tiled and I was happy with the job.
Problem;
Slowly after a period of say 4 to 5 weeks, the tiles have bulged out from the wall. For example, over one shower wall 1200mm wide by 2400 mm high the bulge is 11mm. As you can imagine the tiles have cracked.
The adhesive company have stated that within the internal tiled angles where the tiles abut each other, this joint should have been filled with silicon and not solid grouted with silicon over the top. The other edges are free to expand, so I fail to see this as a valid reason. They also refer to a contaminate to the acrylic tiling solution that was applied to the plastered wall, ( plaster was dry, moisture resistant PB used, The substrate if all fine) The only contaminate may have been the miss emulsion coat that was applied to the plaster some months before tiling. So my question, can this miss emulsion coat really adversely affect the tiling solution and thus the adhesive to cause such a problem? The adhesive is stuck to the tiles and has detached from the wall but not across the whole surface, the edges are fine. The tiles across the top of the bath are done with the same method and are without any problem. My tiler has never seen such a defect and we are at a loss as to what the actual problem is.
If the adhesive is effected so adversely by such a minor miss coat, Is it not fit for purpose? The pressure to cause this bulge is substantial and I don't believe any adhesive would hold back such forces. The adhesive is like a sheet of timber that has become wet on one side and has bowed out. The wall is totally dry.
Please advise,
Many thanks
I hope there is someone here that can advise on a tiling problem I have.
I have had two shower trays professionally tiled with 250 * 400 mm tiles. The trays are 800 * 1200 mm and the walls are 2400mm high. The walls are tiled tray to the ceiling, so full height. One shower has three sides tiled and the other has two sides tiled. Just the area of the showers trays has been tiled. Both showers have never been used. The showers where successfully tiled and I was happy with the job.
Problem;
Slowly after a period of say 4 to 5 weeks, the tiles have bulged out from the wall. For example, over one shower wall 1200mm wide by 2400 mm high the bulge is 11mm. As you can imagine the tiles have cracked.
The adhesive company have stated that within the internal tiled angles where the tiles abut each other, this joint should have been filled with silicon and not solid grouted with silicon over the top. The other edges are free to expand, so I fail to see this as a valid reason. They also refer to a contaminate to the acrylic tiling solution that was applied to the plastered wall, ( plaster was dry, moisture resistant PB used, The substrate if all fine) The only contaminate may have been the miss emulsion coat that was applied to the plaster some months before tiling. So my question, can this miss emulsion coat really adversely affect the tiling solution and thus the adhesive to cause such a problem? The adhesive is stuck to the tiles and has detached from the wall but not across the whole surface, the edges are fine. The tiles across the top of the bath are done with the same method and are without any problem. My tiler has never seen such a defect and we are at a loss as to what the actual problem is.
If the adhesive is effected so adversely by such a minor miss coat, Is it not fit for purpose? The pressure to cause this bulge is substantial and I don't believe any adhesive would hold back such forces. The adhesive is like a sheet of timber that has become wet on one side and has bowed out. The wall is totally dry.
Please advise,
Many thanks