Cracks on the floor surface mainly in the floor paint can not keep up the flexibility of the expansion and contraction of solid wood flooring cracks and began to fall offComposite White Hollow Core 3 Panel Textured Slab Door. The main reasons for cracking the floor surface are: (1) extreme hot and cold weather changes, resulting in solid wood flooring moisture swell and plunge, deck paneling for walls Marketthe floor surface of the floor paint can not keep up with the floor expansion and contraction changes, leading to floor paint cracking. (2) composite wood floor for corridorin the sun exposure, the floor of the serious loss of water contraction. (3) floor damp, flooding surface expansion tongue and groove timber flooring.