Advice needed please

[SparkyChick]

I believe the gravel was to help prolong the life of the primary material (most likely felt) by providing mechanical protection and also UV protection by preventing the sun hitting the roof surface.

Edit:- If you're in my neck of the woods (Cardiff, Newport and the areas in between primarily), drop me a PM if you need some assistance with the electrics.

 

[L Walton]

Rather than just going out and buying a junction box and some terminals could you just buy another pull switch?
MK 6A 1-Way Pull Cord Switch White - https://www.screwfix.com/p/mk-6a-1-way-pull-cord-switch-white/17309
For £3.50 you may as well. Then when the other one dries out use it as a spare.

Good idea but need to make sure water isn't sitting above ceiling and won't get into that one too. Yes it is a one way switch.

 

[L Walton]

Rather than just going out and buying a junction box and some terminals could you just buy another pull switch?
MK 6A 1-Way Pull Cord Switch White - https://www.screwfix.com/p/mk-6a-1-way-pull-cord-switch-white/17309
For £3.50 you may as well. Then when the other one dries out use it as a spare.

Good idea, just need to make sure water isn't sitting above ceiling and won't get into that one too. Yes it is a 1 way switch just pull on and off.

 

[L Walton]

If there is no danger of anyone touching it or working with it and you have isolated it putting a couple of 15a connectors on it will be fine as a temporary measure

Thanks Matthew, the room needn't be used at all so no danger of it being touched, just been worried about the fire hazard.
(Happy St Patrick's Day!)