Thanks for the information.
The balconies are a little odd in that the balustrade is not right at the edge and beyond it is a flat tile/cladding area about 35cm across. The tiles on the balcony can be lifted up and there’s a torch on membrane below. This area beyond the balustrade isn’t accessible from the apartment (unless you are game enough to climb over a 1.5m high glass panel). It’s also slightly raised above the level of the membrane (about 10cm).
We flood tested the balcony above mine over a year ago. No water issue. When the hose was directed against the cladding area I had water running down the inside of my wall. The builder caulked the joins in the tiles/cladding which seemed to slow down the ingress but not completely resolved it. I would have thought there would be waterproofing under the cladding but I should know better given how badly they’ve done everything else.
After 2.5 years and numerous other problems, I feel like just lighting a match and walking away. I will never buy one of these things again. We wasted 8 years saving a deposit and then years paying a mortgage
