kentucky. we bought our house new almost 6 years ago and the insulation is falling out in our crawl space(there are about 10 pieces on the ground that we can see)We haven't gone under there to check this out and in certain parts of the house when you walk on the floor the furniture starts moving and my knickknacks start shaking. you jump on the floor and it shakes real bad in some places. Could this be caused by the insulation falling down? And also, did they not put the insulation correctly? I have never heard of it falling down in the crawl space. And would it be covered under any kind of warranty or can we do anything about it besides staple it back up ourselves?