It seems a simple enough job, the previous owner has put a storage area in the roof space of the garage by laying planks across the existing beams.
the centre beam is now sagging badly and seems to be dropping because of the extra weight now carried by it.
I thiunk the easiest way to solve this is to use some form of jack and push the joist back up in to its correct position and secure it in a better way.
The main thing i want to know is, is it likely by doing this i might make the problem worse?