Forum Discussion
myredracer
Jan 23, 2018Explorer II
If you have a TT that has one of the frames (the main I-beams) made from 3 pieces of sheet steel welded together, they flex a lot more. The frame flex can lead to failure in the welds of the superstructure aluminum framing. An aluminum superstructure is a heavy rigid welded "assembly" sitting on a base that moves up/down from towing or using the jacks. In comparison, wood framing has some give in it. The photo is what was found in a previous TT we owned not long after we owned it from new. Substandard welding at the factory could have contributed as well.
Both types of framing have various pros and cons. It's my understanding that wood roof trusses are preferable due to movement and I believe that's what Northwood uses in their units along with aluminum framing for the rest. We've owned both types. Fiberglass is def. easier to clean and wax and looks sexier. Regardless, preventing leaks is paramount along with ensuring moisture is exhausted from the interior if used in cold weather.

Both types of framing have various pros and cons. It's my understanding that wood roof trusses are preferable due to movement and I believe that's what Northwood uses in their units along with aluminum framing for the rest. We've owned both types. Fiberglass is def. easier to clean and wax and looks sexier. Regardless, preventing leaks is paramount along with ensuring moisture is exhausted from the interior if used in cold weather.

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