Buddy of mine has a 2013 42' toy hauler. He stores it down here from around September to April, then travels away from Florida much of the summer. The skylight over his shower dried out and caved in last year!
I try to get up on my roof every month. I haven't noticed any problems with sealants yet. I use 303 to coat my skylights and air conditioner covers every time I go up there. UV is a killer on these RV's down here.
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Full Time in 2017 Newmar Ventana 4369
pulling a 24' enclosed (Mini Cooper/Harley/Kayak)
(traded 2014 Thor Challenger)
US Army 70-73 Retired LEO
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