North Carolina Building Contractor License Practice Exam

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How many inches must plain bevel siding overlap at a minimum?

1 inch
2 inches
3 inches
4 inches

The correct answer is: 2 inches

The minimum overlap for plain bevel siding is 2 inches to ensure proper water shedding and to minimize the risk of water infiltration. This overlap is critical because it helps create a barrier against moisture that could lead to wood rot or mold growth within the structure. When siding panels overlap effectively, they direct rainwater away from the seams and prevent it from seeping behind the siding. A 2-inch overlap is specified in many building codes and siding installation guidelines, as it provides a sufficient margin to account for variations in siding materials and potential settling of the structure over time. Consequently, adhering to this minimum overlap standard is important for maintaining the durability and integrity of the building's exterior.