North Carolina Building Contractor License Practice Exam

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What is the maximum fastener spacing allowed for siding installed horizontally?

8 inches horizontally and 8 inches vertically
12 inches horizontally and 12 inches vertically
16 inches horizontally and 8 inches vertically
10 inches horizontally and 6 inches vertically

The correct answer is: 12 inches horizontally and 12 inches vertically

The maximum fastener spacing for siding installed horizontally is determined by building codes and manufacturer's specifications. The chosen answer of 12 inches horizontally and 12 inches vertically is correct because it reflects a common standard that ensures the siding is secured adequately for structural stability, weather resistance, and longevity. Spacing fasteners too far apart can jeopardize the siding's ability to withstand wind loads, moisture intrusion, and potential damage over time. The 12-inch criteria along both axes help maintain the siding's rigidity and effective performance. By adhering to these standards, builders ensure a secure installation that contributes to the overall integrity of the building envelope. While other options suggest varying spacings, they do not align with the widely accepted guidelines that balance performance and safety for horizontal siding installations.