I've had the Allure down on our Lexi's floor for about two years now, with no problems. Temp inside during summer hits 90's (when it gets really hot I cut the ac on set at 80 degrees) and winter low 40's (I keep a small space heater inside during winter set to come on when temp gets below 35 degrees.
I installed it myself, leaving the open boxes inside the Lexi for 2 days prior to install, as recommended by Allure. Installed it "floating" with about a 1/4 to 1/2 inch gap at walls, with quarter round moulding to hide the gap.
So far, so good. No planks have developed gaps or pulled away.
Steve & Cheryl + Charlie & Casey, our furry kids.
2012 Forrest River Lexington 283ts
Toad, 2013 Subaru XV Crosstrek
Camping trips this year so far...8