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Composite decking has become a popular choice for many homeowners due to its durability and low maintenance requirements. However, one common issue that owners of composite decks face is shrinking. This phenomenon can lead to unsightly gaps between boards and compromise the structural integrity of the deck. In this article, we will explore the various factors contributing to composite decking shrinking, including temperature changes, moisture absorption, and poor installation practices. We will also provide expert advice on choosing the right materials, maintaining your deck properly, and taking preventative measures to minimize shrinking.
One of the primary causes of composite decking shrinking is temperature fluctuations. Composite materials expand and contract with changes in temperature, which can result in gaps appearing between the boards over time. According to the experts at Deck Boss, it’s essential to consider the climate in your area when selecting composite materials and designing your deck. Choosing materials that are designed to withstand extreme temperatures can help reduce the likelihood of shrinking.
Another factor contributing to composite decking shrinking is moisture absorption. While composite materials are generally more resistant to water damage than traditional wood, they can still absorb moisture under certain conditions. This absorption can cause the material to swell initially, but over time, it can lead to shrinking and warping. Proper sealing and regular maintenance can help prevent moisture-related issues. The team at This Old House recommends using a high-quality sealant to protect your composite deck from moisture damage.
Poor installation practices can also be a significant contributor to composite decking shrinking. If the deck is not installed correctly, with proper spacing between the boards and adequate support, it can lead to uneven expansion and contraction. Consulting with a professional installer or following detailed guidelines provided by manufacturers can help ensure your deck is installed correctly. The National Association of Home Inspectors (NAHI) provides comprehensive guides on deck construction, which can be invaluable resources for DIY enthusiasts.
When selecting composite decking materials, it’s crucial to choose products that are specifically designed to resist shrinking and warping. Look for brands that offer warranties against these issues, as they are likely to have taken steps to enhance the durability of their products. For instance, Trex, a leading manufacturer of composite decking, offers materials that are resistant to fading, staining, and shrinking.
Regular maintenance is key to keeping your composite deck in top condition. This includes cleaning the deck periodically to remove dirt and debris, applying a sealant every few years to protect against moisture, and checking for any signs of wear or damage. By staying proactive about maintenance, you can extend the life of your composite deck and minimize the risk of shrinking.
In addition to choosing quality materials and maintaining your deck properly, there are several preventative measures you can take to minimize shrinking. These include ensuring proper drainage around your deck, avoiding direct contact between the deck and soil, and using appropriate fasteners during installation. For more detailed guidance, refer to the installation manuals provided by reputable composite decking manufacturers.
Composite decking shrinking can be a frustrating issue for homeowners, but understanding the underlying causes and taking proactive steps can help mitigate this problem. By choosing the right materials, maintaining your deck properly, and implementing preventative measures, you can enjoy a beautiful and long-lasting composite deck for years to come.