That is a concern George. I climbed a ladder today to do a close inspeciton of the small tear. There is a piece about 1"sq loose on the bow end, and about a foot rear of that is a place beginning to split and it appears all the thread holes are detiorating. I am leaning towards a replacement topper fabric instead of shortening- re-sewing.
I have read about topper fabric being short-lived for some time. It happened to mine.
I did find some instructions for slide-toppers at" slide-out topper repair
, by "the RV guy".
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"