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Another popular choice is galvanized steel sheet metal. Steel offers high tensile strength, making it an ideal option for RV roofs that require a robust structure to withstand weathering and potential impacts. Galvanization provides a protective coating that helps prevent rust formation and corrosion, thereby enhancing the lifespan of the roof. While steel is heavier than aluminum, its strength-to-weight ratio can be advantageous in specific designs where structural integrity is paramount.
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Typically made from engineered plastic, drainage mats feature a dimpled profile that creates a gap between the rainscreen and the building structure. This design not only encourages efficient water flow but also minimizes the risk of blockages caused by debris. Different types of drainage mats may be available, specifically tailored for varying climates and building materials to optimize performance.
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