I have an 08 Itasca, and the windshield seal leaks. It also came off when a truck passed me once and I had it put back on. It has since come off again, and I stopped and bought the 3M windshield adh...
It is still a Winnie problem with our 2914 Winnie. I took the seal out, cleaned up and recaulked as best I could. Then glued and sealed the edges of the seal. Then covered the entire seal with 4” wide electrical tape( any good tape would work) and finally put a stick on gutter above the windshield to stop roof runoff from coming down