Honestly, I would take it in now (or as others have said, get the ball rolling with the dealer/service dept) and have it looked at. My reasoning...You have now posted on a public forum pictures of what appears to be the roof boards lifting from the joists and putting stress on the roof covering. You therefore know that there may be a problem with your roof. Do not think that we are the only people who read these forums.
While it is a remote possibility, by you knowing about the problem and not scheduling to have it repaired immediately and posting your knowledge on this forum, you could be setting yourself up for a denial of claim.
The reason, your waiting to have the problem fixed when it was first noticed could or did (and if it is a warranty thing, it "DID") lead to the problem escalating which created more damage to the trailer. Either by the roofing material ripping, water damage from leaks caused by the problem, etc. They could say that had you brought it in when you first noticed the problem, and not waiting until November, the problem could have been easily fixed (and hindsight in their mind means it would ALWAYS be an easy fix). But since you waited, the damage is due to you waiting, and the claim for repair is denied or partially denied.
I say this as yesterday I was bored and read the warranty contract for Dutchman travel trailers,(the wife and I are looking at a trailer purchase in the future). In that warranty, the way it is written, pretty much anything can be your fault if it breaks, and they can pick and choose what they want to cover. The one thing was that basically, you have a one year warranty. There is a 6 month grace period after the warranty expires, but ONLY if you get the item in within the original time frame. And then at the end of the grace period, too bad...If you are still having problems it now Your Problem.