I have a 24 year old house with attached unheated garage. The garage is finished with drywall both the walls which I think are insulated and the ceiling which is definitely not insulated. My problem is that the spackle and tape are falling down from the ceiling along all the joint lines. I thought the problem might be related to the vibration from the automatic door operator. However, I think that the problem is more likely the temperature swings from summer to winter.
So, my question is what is the best approach for repairing the joints? Special type of tape and/or spackle?