andimann
2018-02-19 17:32:04
- #1
Depending on how your wall was constructed, the rain could get between the metal sheet + plaster and then run down inside the wall...
There is still some kind of bitumen tape (or whatever, in any case a sticky black stuff) between the wall and the metal sheet. The metal sheet is therefore only the top layer, the sealing layer is behind it.
Regards,
Andreas