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One of the most significant benefits of rolled metal roofing is its durability. Manufacturers are increasingly using advanced coatings and treatments that enhance the longevity of the material, making it resistant to rust, corrosion, and extreme weather conditions. The lifespan of well-maintained rolled metal roofs can extend beyond 50 years, significantly reducing the need for frequent replacements. This durability translates into lower long-term maintenance costs, which is a prime consideration for homeowners and commercial property owners alike.
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where \( Re \) is the Reynolds number. However, as the flow transitions to a turbulent regime, the calculation becomes more complex. The turbulent flow friction factor is determined using empirical correlations, such as the Colebrook-White equation, which accounts for both the Reynolds number and the relative roughness of the pipe.
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