We have a Windsport, no rollars on our slides. the slides are supported just above the coach floor and fit just over the carpet. Our kitchen slide is over vinyl and no marks. You would need to talk to your coach mfg. and ask how they are designed.
Mike, Janet & Duchess (cavalier King Charles)
2008 35B windsport, Brazel's rear TracBar, Koni shocks & Safe T plus steering