What is the minimum lap measurement for siding installation?

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The minimum lap measurement for siding installation is crucial for ensuring proper weather resistance and drainage. A lap measurement of 1 inch is recommended as it provides adequate overlap to prevent water infiltration behind the siding. This 1-inch lap helps to protect the underlying structure from moisture while also allowing for proper expansion and contraction of the siding material.

A lap measurement greater than 1 inch could be beneficial in certain scenarios, providing even more overlap, but a 1-inch lap is typically sufficient for standard installations, balancing performance and material use. This measurement is supported by installation guidelines and best practices within the industry to ensure durability and longevity of the siding.

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