One of rigs had this type of problem, where the windshield would crack from the edge out without any rock chips! The fellow who replaced the last one suggested a film applied to the top half a foot and the same at the bottom, on the inside and on the top on the outside as well. He said its not much but every little bit helps and he added a couple beads of some tacky stuff where on the external glass where it would not be visible after the trim was put on.
For 5 years after that no glass cracks, we did pick up some stars from rock hits but the same outfit fixed those.
Has anyone tried the full windshield film?
RUSTIC is good.
Kudos to those who make Local, State & Federal Parks & Campgrounds possible and to those picking up the slack by Providing Private Campgrounds.