Rooftop Terrace Composite Decking

WPC rooftop terrace flooring is based on a blend of wood fiber and polymer plastic (PVC/PE), and forms a dense structure through a high-temperature and high-pressure extrusion process.

The hydrophobicity of wood fiber is improved after special treatment, and the plastic matrix itself has natural waterproofness.

The combination of the two forms a double barrier, and moisture cannot penetrate into the interior.

The edge of the floor adopts an embedded lock + waterproof strip design, and the seam is self-sealed by the lock pressure to prevent rainwater from invading the gap.

Experimental data show that its waterproof performance reaches the IPX8 level (can be immersed in water for a long time).

The surface of the board is designed with a micron-level concave and convex texture, which not only ensures anti-slip performance but also facilitates the rapid diversion of accumulated water.

With the concealed drainage groove, the risk of accumulated water penetration is greatly reduced.

Rooftop terrace flooring WPC adopts a fully solid one-piece molding process, with a density of up to 1.2-1.5g/cm³ (ordinary WPC floor is 0.8-1.0g/cm³), reducing internal stress concentration.

By adding inorganic mineral fillers, the linear expansion coefficient is controlled close to the stability of the metal.

The back of the floor is integrated with an EVA foam layer to relieve the expansion pressure caused by temperature changes, while dispersing the local load of pedestrians and furniture to avoid warping of joints.

Each floor reserves a 2-3mm expansion margin, and is equipped with expansion buckle accessories to adapt to dimensional fluctuations under extreme temperature differences from -40℃ to 80℃.

The surface is coated with a nano-level anti-UV coating, which reflects more than 90% of UV light and prevents the plastic matrix from yellowing and brittleness.

Laboratory accelerated aging tests show that after 5000 hours of continuous exposure, the surface color difference ΔE≤1.5.

The use of new PVC and an antioxidant compound system delays the oxidation degradation of the material.

Adding antioxidants and UV light stabilizers extends the service life to more than 15 years.

Passed ASTM G154 (UV aging test), ASTM D4141 (cyclic salt spray test), and ISO 4665 (mechanical fatigue test), proving that the WPC decking has stable performance in harsh environments such as high temperature and humidity, coastal salt spray, and freeze-thaw cycles.