Wood on the enrty will help stop it, also find the end of the part of the carpet that has begun to unravel and cut it with a sharp knife or clip with a sissors and place a drop of glue on the end down ... read more
Christofer, There is a lot written about your particular condition. What I would do would be to install a spray polyurethane insulation (closed cell insulation) into the attic ceiling and down to and ... read more