Bungalow with attic trusses for future development was built, finished, after a year or so snagging of decor done and a few cracks in ceiling along tapes and screw pops fixed. another 6 months later the attic was floored and within a few weeks cracks started to appear in ceilings which we expected a few of but every room has multiple and some are a few mm wide, theres even a few starting in the upper edges of room walls. Upstairs isn't in use its just storage.
Question is should we be concerned and if we wait another 6 months and have the tapes fixed and redecorate is it going to continue to happen?