I wish I had read this thread before I bought my trailer 2 years ago.
In summer of 2013, I bought a brand new Travel Lite i17 travel trailer. After a year, the rear left roof corner has a water leakage and costs me 1500$ to fix it. The problem is due to lack of caulking around the screws on the side molding and insufficient rubber roof rolled down underneath the molding. The repair guys said this trailer is defective and the problem was born in day 1. Called manufacture and they won't help since the damage was identified after 1 year! Recently there is another water leakage in the other corner around the skylight. Not sure how the water gets there because all the outside sealant looks good to me. Now I have to make another repair. This time I will let them open the entire roof and check if there is more water leakage elsewhere. If you are in search of a trailer, stay away from this brand.