Thanks a lot Kara S.! I had no idea of those measures, amazing! I've always thought of this type of situations as desperate, no solution. One of my clients used to have an old plant building with leaking roof and other holes all over the place, like swiss cheese. The roof repairs were useless as the building itself was 100-year old and kind of spongy - so, the only measures they had were buckets placed in strategic locations:) Terrible memories...
Glad it helped shine some light on some other control measures!
Having an uncontrolled water event plan is becoming more popular. It considers events like roof leaks, floods, condensation, pipe leaks. You can then have different controls based on where the leak is. Happy to help you write a policy if needed!