So my home is about 3-4 years old. Small problem; in the basement, some sections of the insulation has either sagged or just fallen to the ground. I'm talking about insulation that was just stuck to the side walls, not ceilings. I think this may have happened due to kids rough-housing and throwing stuff around. Any ideas or solutions on how to re-hang the insulation and make it stick to the concrete walls again? Thanks in advance.