Composite decking has become a popular choice for homeowners looking to create a beautiful and durable outdoor space. Made from a combination of wood fibers and recycled plastic, composite decking offers the natural look of wood with the low maintenance of a synthetic material. However, many homeowners wonder if sealant can be applied to further protect their composite decking from the elements and enhance its longevity. In this article, we will explore the benefits and considerations of applying sealant on composite decking.
Understanding Composite Decking
Before discussing the application of sealant, it is important to understand the composition and characteristics of composite decking. As mentioned earlier, composite decking is primarily made from a blend of wood fibers and recycled plastic. This combination results in a decking material that is resistant to rot, warping, and insect damage. Additionally, most composite decking products are engineered to be resistant to fading, staining, and mold growth.
Composite Decking and Moisture Resistance
One of the primary reasons homeowners consider applying sealant on their composite decking is to provide an extra layer of protection against moisture. While composite decking is resistant to moisture-related issues such as rot and warping, it is not completely impervious to moisture penetration. Over time, rain, snow, and other forms of moisture can seep into the small openings between composite decking materials. This moisture can lead to the growth of mold and mildew, as well as potential surface discoloration.
Benefits of Applying Sealant
Applying a sealant to composite decking can offer several benefits. First and foremost, it can help to further prevent moisture infiltration. By creating a protective barrier, sealant can minimize the chances of mold and mildew growth, as well as reduce the risk of surface discoloration caused by moisture. Additionally, a sealant can assist in preventing fading and staining, which may occur as a result of prolonged sun exposure or spills.
Types of Sealants for Composite Decking
When considering applying sealant to your composite decking, it is important to choose the right type of sealant. There are two main types of sealants commonly used for composite decking: film-forming sealants and penetrating sealants.
Film-forming sealants create a clear protective layer on the surface of the decking. This type of sealant acts similarly to a paint or varnish, adding a glossy finish and providing a high level of protection against moisture and UV rays. It is important to note that film-forming sealants may alter the appearance of the decking, potentially creating a more synthetic and less natural look.
Penetrating sealants, on the other hand, are designed to penetrate the surface of the composite decking and bond with the individual fibers. This type of sealant offers a more natural look while providing protection against moisture and UV rays. However, it is important to follow the manufacturer’s instructions when applying penetrating sealants, as improper application may lead to uneven coating or failure to bond with the decking properly.
Considerations and Maintenance
Before applying sealant to your composite decking, it is crucial to check the manufacturer’s recommendations and warranty guidelines. Some composite decking manufacturers may discourage or void the warranty if sealant is applied. It is important to weigh the benefits of sealant against the potential impact on warranty coverage.
Furthermore, regular maintenance is necessary to ensure the longevity of your composite decking, with or without sealant. This includes routine cleaning to remove dirt, debris, and potential stains. Simple measures such as sweeping regularly, wiping up spills promptly, and using gentle cleaning solutions can help preserve the appearance and performance of your composite decking.
While composite decking is already designed to be resistant to moisture and other common issues, the application of sealant can provide an extra layer of protection. However, it is important to choose the right type of sealant, follow manufacturer recommendations, and consider the impact on warranty coverage. Regular maintenance is also crucial to maintain the appearance and performance of your composite decking, whether or not sealant is applied.