curb side, slide-out

Has anyone noticed any damage to the underside of the kitchen,entertainment center slideout. I read a post concerning the curb side slideout seal leaking when traveling in the rain. So I climbed under mine to see what condition the seal was in,and found that the seal was ripped in two places. The slide-out rolls out on rollers attached to the unit. At the front or first roller and at the third roller the seal is ripped. Also the bottom of the slide-out, where it comes in contact with the third roller is chewed up,like something is cutting at the wood when you pull the slide in and out.I will check this out and let you know what I find.