I own a custom deck company in St. Louis Mo and have installed several Carefree decks. Our clients love them. We have major changes in temperature in our area and Carefree performs extremely well. It is definitely not a product to be installed by a weekend-warrior, and installation instructions shold be followed to a"T". I have used other products from composites to pure vinyl decking and Carefree, in my opinion, out performs them all.