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Composite decking is a popular choice for homeowners seeking to create beautiful, low-maintenance outdoor spaces. However, some people may notice an unexpected issue with their composite decking: waviness. If you’ve observed your composite deck becoming wavy or uneven, it’s important to understand the potential causes and how to prevent this from happening.
What Is Composite Decking?
Composite decking is made from a blend of wood fibers and plastic, creating a durable, weather-resistant material that requires far less maintenance than traditional wood decking. Available in a variety of colors and textures, composite decking is a versatile choice for many homeowners.
Benefits of Composite Decking
- Low Maintenance: Requires minimal upkeep compared to wood.
- Durability: Resistant to rot, insect damage, and weathering.
- Aesthetic Appeal: Available in a wide range of styles and colors.
Why Does Composite Decking Sometimes Become Wavy?
1. Natural Material Behavior
Composite decking, like any material, is subject to natural expansion and contraction due to temperature fluctuations. While this is a standard characteristic of composite materials, proper planning and installation can significantly minimize any noticeable effects.
- Thermal Expansion and Contraction: Composite decking naturally expands in heat and contracts in cooler temperatures. This is why it's crucial to allow for expansion gaps during installation. These gaps accommodate the material's movement and help prevent buckling or waviness.
- Moisture Absorption: Although composite decking is designed to be moisture-resistant, it can still absorb a minimal amount of water. This can occur especially if the protective outer layer is compromised, leading to slight swelling. Ensuring proper sealing and adequate drainage under the deck can mitigate this risk.
2. Installation Best Practices
The installation process plays a vital role in the performance of composite decking. Proper techniques help ensure a smooth, even surface that stands the test of time. So, you should have enough knowledge about installing composite decking with hidden fasteners.
- Joist Spacing: Correct joist spacing is essential to provide the necessary support for composite decking. Following the manufacturer’s guidelines on joist spacing helps avoid excessive flexing that can lead to waves.
- Surface Preparation: A level and stable surface is key to a successful deck installation. Ensuring the foundation is even will reduce the likelihood of uneven decking surfaces.
- Fastening Method: Using the recommended type and quantity of fasteners ensures the decking remains securely in place, minimizing the potential for movement that could create waviness.
3. Material Quality
High-quality composite decking materials are less prone to issues such as warping or swelling. Investing in premium products from reputable manufacturers ensures durability and long-lasting aesthetic appeal. For instance, wood vs composite decking.
- Research and Selection: Choosing well-regarded brands known for producing durable composite decking is an investment in your deck’s longevity. Check the manufacturer’s warranty as an indicator of product quality. Additionally, if you think of installing PVC decking, research its benefits and issues.
How to Prevent and Address Wavy Composite Decking
1. Preventive Measures
The best approach to avoid waviness in composite decking is through proper planning and installation. Working with experienced professionals familiar with composite materials is crucial.
- Expert Installation: Hiring professionals who understand the nuances of composite decking installation ensures that your deck will be built to last.
- Regular Maintenance: Even though composite decking is low maintenance, regular cleaning and inspections can help identify potential issues before they become significant problems.
2. Addressing Existing Waviness
If your composite decking has already developed waviness, there are steps you can take to address the issue effectively:
- Professional Consultation: For any concerns regarding the waviness of your deck, it’s advisable to consult with a professional deck installer. They can assess the situation and recommend appropriate actions.
- Reinstallation: In some cases, reinstallation of the affected boards may be necessary. This process should be done with careful attention to proper spacing and fastening techniques to prevent future issues.
Conclusion
Wavy composite decking can be a concern, but with the right knowledge and proactive measures, it’s an issue that can be prevented or effectively managed. Focusing on quality installation, regular maintenance, and choosing high-quality materials will help ensure your deck remains beautiful and level for years to come.
We’re Professional Deck Installers!
For professional assistance and expert advice on composite decking, contact Arca Construction at info@arcadecks.com or (540) 413-4860. Our team is here to help you achieve the perfect deck for your home. For more tips on deck care and maintenance, visit our blog or reach out to us directly. We’re dedicated to helping you protect and enhance your outdoor spaces!