From what I've read on this forum, if you expect big temp swings, you want to go with the snap and lock version of Allure, not the basic version the big box stores carry. Usually special order.
BTW, all these types of floors are "floating" floors so there's nothing to "stick down", meaning I don't understand the post above. The complaints I've read here relate to the stick together Alure coming apart at the seams in big temp swing areas. The snap and lock version seems to solve that. And yes, Alure is not "approved" for RV use, though lots of folks have installed it in RVs.
FWIW, Forest River and Airstream use Beaufloor. We ordered it in our new Rockwood Windjammer:
Why BeauFloor?Looks like Armstrong, Pergo, Alure, et al, and is vinyl and can get wet.
Here too:
SamplesSeems to be OK so far.