Should we be (a little) wary of "luxury vinyl planking"? TrafficMaster (the brand sold by the big orange box and others) sells a nice, double thickness vinyl plank with adhesive joints so it is pretty water resistant. IIRC, they have a pretty narrow operating temperature range, like between 35° and 85°F.
I think I'm remembering wrong about the upper limit but since many of us store these trailers, unheated, in northern winters, not tolerating freezing makes it a nonstarter.
Florida Keys and far Northern Vermont
2009 Fun Finder XT245
2013 GMC Sierra