We were having a similar problem on the rubber floor mats. Especially when things got humid or frosty.
We put in the commercial, rubber-backed floor mats you can buy at Home Depot, cut around the legs of the rack (our rack/mono has elevated lower rails) and duct-taped it down.
It has been in heavy use for three years, and the carpet is starting to wear enough to be replaced. Not bad for a $20 mat.