Graham Roofing Incorporated

Metal roofing systems are designed to accommodate thermal expansion and contraction. As roof temperatures change throughout the day and across seasons, metal panels expand when heated and contract when cooled. If this movement isn't properly accounted for during installation, it can lead to roof leaks, fastener failures, and increased vulnerability to wind damage.

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Source: National Roofing Contractors Association (NRCA), Thermal Movement in Metal Roof Systems.

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