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Installation Tips and Considerations for WPC Decking

Installation Tips and Considerations for WPC Decking

  • Jun 27, 2024

How To Install outdoor WPC (Wood Plastic Composite) Decking

Installing Wood-Plastic Composite (WPC) decking requires careful planning and execution to ensure a long-lasting and aesthetically pleasing result. WPC decking, known for its durability, low maintenance, and resemblance to natural wood, offers a versatile solution for outdoor spaces. Here are some essential tips and considerations to keep in mind during the installation process:

1. Proper Substructure Preparation:

Before installing WPC decking boards, ensure the substructure is well-prepared. Use treated lumber, composite materials, or steel joists to create a sturdy and level base. The space between two joists should be within 35cm, which is crucial to support the decking boards and prevent sagging over time.

2. Allow for Expansion Gaps:

WPC decking boards expand and contract with temperature changes. Leave sufficient expansion gaps between each side of boards and around the perimeter of the deck to accommodate these fluctuations. Normally the gap should at least be 6 mm.

3. Use Correct Fasteners:

Choose appropriate fasteners designed for composite decking to ensure secure attachment without causing damage to the boards. Stainless steel clips and screws are recommended to prevent rust and corrosion, which can compromise the integrity of the installation over time.

4. Avoid Excessive Heat Build-Up:

WPC decking can become hot under direct sunlight, especially in warmer climates. So, it’s important to provide adequate ventilation underneath the deck to dissipate heat and prevent heat-related issues.

5. Minimize Water Accumulation:

Proper drainage is essential to prevent water from pooling on the deck surface or around the substructure. Ensure there is adequate slope for water runoff and install flashing or a gutter system where necessary to divert water away from the structure and prevent moisture-related issues.

6. Regular Maintenance:

While WPC decking requires less maintenance than traditional wood, regular upkeep is still necessary to prolong its lifespan and appearance. Periodically clean the decking surface to remove dirt, debris, and mold buildup. Avoid using harsh chemicals or pressure washers that could damage the surface.

7.Consider Environmental Factors:

 Take into account local climate conditions, such as temperature variations, humidity levels, and exposure to sunlight, when planning the installation. Solid wpc decking can perform better than hollow decking in specific climates, so choose a WPC product that suits your region’s environmental conditions.

8.Use Cover Edge Board For Hollow WPC Decking

It’s crucial to use edge board to cover the end of hollow WPC decking, which helps prolong it’s lifespan. Because of the hollow holes, water can easily flows into the hollow space in the decking and accumulate inside for a long time. Under the action of sunlight heat, the moisture keeps boiling the decking, which can harm it’s quality.

Conclusion:

Proper installation of WPC decking involves attention to detail, adherence to manufacturer guidelines, and consideration of environmental factors. By following these tips and considerations, you can ensure a successful installation that enhances your outdoor space with durable, low-maintenance decking that retains its beauty and functionality for years to come.