Hey Wickie
2020-02-11 13:39:23
- #1
I am new here in the forum and would like to describe my case and hear your opinion about it. In 07/2018 our balcony was newly tiled. The old covering was removed, a slope was created and then it was newly covered. First, a edge/drip profile was installed, a sealing membrane was glued, a drainage membrane was laid on top, and then it was tiled. The profile, sealing and drainage membrane came from a system provider from Iserlohn. At first, we had to find out that the slope was unfortunately not done well, although there was enough height difference to create a uniform 2%. Rainwater cannot drain properly and puddles remain. At other points, one could clearly see a "kink" in the slope. Despite these defects reported by us, we paid the invoice in full. In retrospect, however, we had to find out that something in the system was not carried out properly, because moisture spots quickly formed on the balcony side after rain. (We could not recognize this before – the summer of 2018 was quite dry). The spots start below the profile, so it cannot be "splash water". Thereupon, a defect report was made. The master tiler initially wanted to simply inject silicone under the profile and seal it that way… Then there was an on-site appointment with the master tiler and the sales representative of the company from Iserlohn. It was then determined that the moisture spots can only occur if the sealing membrane is not properly glued to the edge profile. The system provider then wrote a repair instruction and sent it to the tiler. According to this, the tiles where moisture spots appeared on the balcony side were removed, the drainage and sealing membrane were cut out and re-glued in this area. This then also took place in 09/2018. Unfortunately, this did not bring any success – on the contrary, it got worse. There must still be an insufficient adhesion of the sealing membrane, whereby moisture/water can penetrate into the concrete core and thus cause moisture spots. We pointed out this problem to the master tiler again (documented submission of a letter & email), but there was no feedback afterwards. You can simulate it relatively quickly by spraying some water into the drain holes of the edge profile, that is into the drainage membrane. The whole system should actually be a "watertight tub" where only water that is possibly in the drainage membrane can flow out through the holes in the end profile! In rain you can very well see that when water flows over the edge profile and over the drain holes, water is also "pulled" into the drainage membrane (capillary forces?). Furthermore, efflorescence appeared very quickly on the joints, especially (but not only!) at the points where the leaks are or where tiles were replaced. I have let the whole thing slide due to health problems, but now I want to tackle it and would be grateful for your advice. How should I best proceed?