- Joined
- 2 Jan 2019
- Messages
- 330
- Reaction score
- 8
- Country
Is it ok to run cables in the cavity on an external wall. The mains is situated in a cupboard at the bottom of the stairs. The mains is fitted in the cavity. I wired a ring main for my utility room along the cavity. Its RCD protected. When I pulled the cables through it had black on it which I'm guessing is off some damp proofing. Will it be ok or do you think I could now end up with damp problems?