How do moisture, humidity and temperature affect Pergo?
The melamine top surface withstands water, and the joints, if properly glued, will be tight enough to prevent water from penetrating into the wood-based core material. For a strong joint, plenty of glue must be used throughout the entire length of the groove. The water-based glue may cause the joints to swell temporarily, but they will go back to normal after about six to eight weeks. Pergo consists of 90 percent wood-based materials that expand and contract with the changes in humidity. Therefore, when installing Pergo, you must leave expansion spaces of 1/4″ next to walls and other fixed objects.
