to the forum and congrats on your new trailer.
Too bad about the problems you're having. Sounds like your dealer and FR are trying to make things right.
Check the axles, especially the alignment. Could be off causing the tires to blow prematurely.
You'll want a complete and thorough PDI when it gets back to your dealer. Since you've had roof and tire problems this soon there may be some other problems you haven't spotted yet.
If nothing else, see if FR will give you the second year warranty. Might give you and your wife a little peace of mind.