My house had a not insulated attic / roof, because the underside of the roof is directly visible it is easy to inspect for potential leaks. I was able to catch one fairly early several years ago.
Now I plan to install a heat pump in my home and one of the first things HVAC guy advised was to insulate the roof with a thick layer of rockwool.
I was thinking to add some sensors on the underside of the roof before I install the rockwool / damp barrier in order to detect potential leak issues in future.
What do you generally think about such idea? It would be a really long term installation (20 years?) is this even feasable with our current sensors technology and what sensors would you suggest for such install?