Check for surface cracks
Cracks in gray waterproof laminate flooring not only affect aesthetics but in the wet season moisture and moisture can seep through the cracks and into the interior of the floor, making it damp. Inspect the floor surface carefully and touch it with your hand.

Check for wormholes
Wormholes are common in many hardwood and hardwood flooring systems. The moisture resistance of gray waterproof laminate flooring will be affected if the area of the wormhole is large, but the small diameter and uniform distribution of the wormhole can be used as texture decoration of wood flooring. Observe the area and distribution of wormholes on Gray Waterproof laminate flooring.

Tap the surface of the floor to check for internal decay
Gray waterproof laminate flooring is made of wood. Some floors will rot because of improper preservation. The decay of this floor is divided into internal rot and external rot. The floor of internal decay is easy to deformation, mildew, and external decay of the floor is easy to lose waterproof function. When you buy it, use the knock method to listen to gray waterproof laminate flooring. If the sound is dull and light, the floor may have internal corruption.

Use water to test its water absorption
The high-quality gray waterproof laminate flooring substrate is very dense and does not absorb water easily. You can pour water on the floor of the material, if you like dew floating on the substrate, the quality is good, but if you see water, must be careful to buy. When purchasing Gray Waterproof laminate flooring, you can refer to the absorption thickness expansion rate. The higher the index of the water swelling rate, the worse the water resistance.