Hello everyone,
Unfortunately, I had a leak in the welded joint of the PPR pipe supplying water in my bathroom, which caused water damage. This meant having to painstakingly remove and sand the old tiles and adhesive, reseal with PCI Lastogum, install a drainage channel, and now I’m currently cutting and laying tiles, which brings me to the problem area. To be clear, I’m not a professional tiler and would have really preferred to leave this to an expert, but the quotes for the 4 wall tiles plus 2 floor tiles were outrageous (despite having the materials: porcelain stoneware + PCI Nanolight) — around 2,000 euros. So I have to do it myself, since unfortunately I don’t have a money tree yet.
So far, the project has gone okay: I have cut and deburred the tiles and roughly laid them out.
Unfortunately, I then noticed that the porcelain stoneware, despite being first quality and calibrated, has a slight crown in the middle of about 4mm (0.16 inches) upwards.
I’ve tried to illustrate this for you.
My question now is: is there a way to compensate for this warp in the tile? When I press down on the tile in the middle, it moves down… Does this work in practice — if I push the tile down while the adhesive dries, will it permanently stay flat, or is it only a matter of time before it warps upwards again due to internal stresses?
I would really appreciate any tips... I bought 6 tiles from different batches and all have this warping. Unfortunately, these tiles are the remaining ones from the rest of the apartment, so I can’t just swap them out, and using different tiles would look bad.
Best regards.
For your information, the tiles are only roughly laid out, and the Lastogum you see is the new layer, with another layer of Lastogum underneath that continues beneath the angle profiles.
Unfortunately, I had a leak in the welded joint of the PPR pipe supplying water in my bathroom, which caused water damage. This meant having to painstakingly remove and sand the old tiles and adhesive, reseal with PCI Lastogum, install a drainage channel, and now I’m currently cutting and laying tiles, which brings me to the problem area. To be clear, I’m not a professional tiler and would have really preferred to leave this to an expert, but the quotes for the 4 wall tiles plus 2 floor tiles were outrageous (despite having the materials: porcelain stoneware + PCI Nanolight) — around 2,000 euros. So I have to do it myself, since unfortunately I don’t have a money tree yet.
So far, the project has gone okay: I have cut and deburred the tiles and roughly laid them out.
Unfortunately, I then noticed that the porcelain stoneware, despite being first quality and calibrated, has a slight crown in the middle of about 4mm (0.16 inches) upwards.
I’ve tried to illustrate this for you.
My question now is: is there a way to compensate for this warp in the tile? When I press down on the tile in the middle, it moves down… Does this work in practice — if I push the tile down while the adhesive dries, will it permanently stay flat, or is it only a matter of time before it warps upwards again due to internal stresses?
I would really appreciate any tips... I bought 6 tiles from different batches and all have this warping. Unfortunately, these tiles are the remaining ones from the rest of the apartment, so I can’t just swap them out, and using different tiles would look bad.
Best regards.
For your information, the tiles are only roughly laid out, and the Lastogum you see is the new layer, with another layer of Lastogum underneath that continues beneath the angle profiles.
“When I place a 60cm (24 inch) spirit level in the middle of the tile and then tap on the right or left side of the level, it rocks back and forth.”
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That is exactly why I suggested checking both sides. Assuming consistent material thickness, one of the surfaces (top or bottom) should show a slight gap under a sufficiently long spirit level (I had mentioned a long, straight metal piece) indicating a concave or convex warp.
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That is exactly why I suggested checking both sides. Assuming consistent material thickness, one of the surfaces (top or bottom) should show a slight gap under a sufficiently long spirit level (I had mentioned a long, straight metal piece) indicating a concave or convex warp.