Shed alarms - Not sure what to get or how much to spend

It could of course have been added after the house was built.

I spent three years in a school that had asbestos in the art block ceiling. They removed it as soon as they knew, but still, think of the number of people who were in there! I am fine as far as I know. Unless it can cause M.E.????

 

I can't see it, the horse stuff was used in Victorian/Edwardian times, you can see its all the original wood etc which is why its falling apart.

Still no luck form the council, however one of my mums friends husband works for the council as a brick layer so I might asked him to look at it, apart of his job is knowing what materials he can work with.