Forum Discussion
theoldwizard1
Oct 14, 2016Explorer II
The biggest "fear" most TT owners have is water intrusion. Flat roofs, with openings for vents and A/C units, just are NOT the best design. Jayco went to their "Magnum Roof System" several years ago, not just to add strength and rigidity, but to shed water more quickly. It may not be perfect, but it is better than a flat roof.
The second common area of water intrusion is at roof/side wall seam. Look at cargo/enclosed landscape trailers. Their roof wraps over the side in one piece and joins the side wall on the vertical. A piece of continuous Z-flashing at that joint would make it almost impermeable to water intrusion.
The third area of water intrusion is at the windows. Some type of window water deflector, installed under the siding, or even Z-flashing would help prevent water leaks at windows.
Stiffness against racking, side to side and front to back, is important, especially for long term durability. Heavier interior wallboard would help. Fully welded aluminum box tubing wall frames would help. A boxed frame and through frame welded transverse connectors/supports (look up images of F150 frame) really DO make a difference.
The only manufacturer that I can think of that does any of these is Airstream (rounded side roof).
The second common area of water intrusion is at roof/side wall seam. Look at cargo/enclosed landscape trailers. Their roof wraps over the side in one piece and joins the side wall on the vertical. A piece of continuous Z-flashing at that joint would make it almost impermeable to water intrusion.
The third area of water intrusion is at the windows. Some type of window water deflector, installed under the siding, or even Z-flashing would help prevent water leaks at windows.
Stiffness against racking, side to side and front to back, is important, especially for long term durability. Heavier interior wallboard would help. Fully welded aluminum box tubing wall frames would help. A boxed frame and through frame welded transverse connectors/supports (look up images of F150 frame) really DO make a difference.
The only manufacturer that I can think of that does any of these is Airstream (rounded side roof).
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