Greetings from Maryland's Eastern Shore

[RalphC]

We just traded our travel trailer on a new 2015 Thor Windsport 35C and when we got it home, I noticed that the rubber roof is bubbled along the right and left sides. Does anyone know if this is this normal expansion?

 

[Hooligan2]

It is not unusual for the rubber roof membrane to develop small bubbles. They should not significantly increase in size or cover a large area. Recommend you show your dealer on next visit, to document or send photos to Thor. (Just in case it becomes a problem).
My prior MH, 2000 GeorgieBoy DP had some bubbles and they never changed or caused a problem in over 15 years... Roof material was made by DICOR and they warned- do not puncture the bubbles and try to re-glue. The roof material should have a 10-12 year warranty.

Enjoy the new RV..

 

[Hooligan2]

RalphC- BTW I was in Queenstown,Md 2 weeks ago, returning from an RV trip to Niagara. Had a great dinner at Fisherman's Inn on Kent Island.

 

[Metalman-THOR]

I had serious bubbles in the rubber roof of a pull behind toy hauler. Since the bubbles didn't enlarge over time, I ignored them except when I cleaned the roof or saw them from the upper windows of the house. No problems with leaking or tearing, but I'd prefer no bubbles on a roof.