I have a 25 year old Schultz home. The Harvest Model The flooring has swelled in spots and bands and chunks. it has swelled a peak of 1/2" in spots. This is through out the home. I would like to know what is happening and what has to be done. It started about 3 years ago. there was a few then it seemed to spread. There is also what seems like bands. In some spots there is a ridge across the flooring joists. I would like to know what is happening and what if anything can be done about it. When I brought the home three years ago it had no problem.