The workmen tore out the tiles on the balcony outside this week, which they then covered with some plastic, but this was not attached to the house, and, much to our surprise, water started flowing and dripping all along this wall during a heavy rain storm. It was coming in where the rolladen covers extend into the room.
We put out trash cans and buckets, pots and towels to catch the water. We can only hope at this point that it did no permanent damage and also that we won't have another big rain storm like that before the workmen finish the job, but I think we'll have a word with the architect on Monday and let him know what happened.
The water left deep muddy ruts in the yard. It made quite a mess. I hope it dries out tomorrow!