The WPC has many advantages such as waterproof, moisture-proof, fire-proof, corrosion-resistant, insect-proof, fungus-proof, acid-alkali-resistant, non-toxic, and pollution-free. The maintenance cost is much lower than that of the log ceiling, which is its biggest feature. The plastic wood grid ceiling is comparable to logs in appearance, but its hardness is higher than that of plastic building materials, so its service life is naturally higher than that of logs and plastic materials.