"If drywall gets damp, it swells and crumbles and can pull away from around the screws that hold it to the ceiling studs (beams)," Beacham says ... "If it's insect damage, the infestation is likely to ...
Screws are essential fasteners that are used in many construction projects around ... it pulls out as soon as weight is applied, since drywall doesn’t have the right composition and strength ...