heres my thought on these self fixes ... under warrenty.
they are not covered ... if the fixed fail .. your out of luck.
fixed by the dealer, they are, as long as you have a papertrail.
For my fixes, i did them all at the end of the camping season, all at once. This way, the dealer does it, it gives you time to organize your storage, and it shows it is still under warrenty. Roof warrentys on these trailer are for 5 years, which is virtually unheard of these days. Your windows are on the roof ..therefore .. they are under the same warrenty.
just my .02
2008 Nissan Frontier 4x4
2011 Rockwood A122