Traditional Culture Encyclopedia - Weather inquiry - Will the suspended floor shrink when it is cold?

Will the suspended floor shrink when it is cold?

When the weather is cold, the suspended floor will shrink. Because its raw material is polypropylene, modified pp, and it is also a plastic raw material. There are cases of thermal expansion and cold contraction. So when laying, according to the size of the site, there must be 1.5-3 cm expansion joints around.