The Impact of Fasteners on Square Edge Composite Decking Durability
Introduction
Composite decking has become increasingly popular due to its low maintenance requirements and aesthetic appeal. However, the longevity and durability of such decks heavily depend on the type of fasteners used. This article delves into the impact of different fasteners on the durability of square edge composite decking, focusing on factors like corrosion resistance, expansion and contraction, and their influence on the overall lifespan of the deck.
Corrosion Resistance
One of the primary concerns when selecting fasteners for composite decking is their resistance to corrosion. Unlike wood, which can naturally resist some degree of moisture and decay, composite materials are more susceptible to chemical reactions that can lead to degradation. Stainless steel and coated screws are recommended for their superior corrosion resistance, ensuring that the fasteners maintain their integrity over time. For instance, a study by the American Wood Council highlights that stainless steel fasteners outperform galvanized ones in resisting corrosive environments (AWC).
Expansion and Contraction
Composite materials expand and contract with changes in temperature, much like metal. This property necessitates the use of fasteners that allow for some movement without compromising the structural integrity of the deck. Screw fasteners with self-drilling tips and slightly larger heads are ideal as they can accommodate the slight movements of the composite boards while still providing a secure hold. Research from the Composite Panel Association (CPA) suggests that using screws designed specifically for composite materials can significantly enhance the deck’s durability and reduce the risk of splitting (CPA).
The Influence on Lifespan
The choice of fasteners not only affects the immediate stability of the deck but also plays a crucial role in determining its long-term durability. Fasteners that resist corrosion and accommodate material expansion can extend the lifespan of a composite deck by years. Proper selection and installation of fasteners are essential to avoid issues such as rust, splitting, and warping, which can lead to costly repairs or replacements. A comprehensive guide published by the National Association of Home Builders (NAHB) emphasizes the importance of choosing the right fasteners based on the specific environmental conditions and intended use of the deck (NAHB).
Conclusion
When it comes to maintaining the durability of square edge composite decking, the choice of fasteners cannot be overstated. By prioritizing corrosion-resistant materials and those that can handle thermal expansion, homeowners and builders can ensure their decks stand the test of time. The combination of proper fastener selection and installation practices can make a significant difference in the longevity and appearance of composite decks, contributing to a more sustainable and aesthetically pleasing outdoor living space.
Reference Literature
American Wood Council: Corrosion Resistance of Fasteners in Wood Structures
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