North Carolina Building Contractor License Practice Exam

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What is the minimum thickness for fiber cement lap siding used as weather covering?

0.5 inches
0.75 inches
1 inch
1.25 inches

The correct answer is: 0.5 inches

The minimum thickness for fiber cement lap siding used as weather covering is typically specified to ensure durability and resistance to various weather conditions. Fiber cement siding is engineered to withstand moisture, wind, and temperature fluctuations. A thickness of 0.5 inches provides sufficient strength and insulation properties while ensuring that the material can be easily handled during installation. Additionally, this thickness helps meet building code requirements and performance standards for exterior siding, making it suitable for a variety of climates. In contrast, thicker options do not align with the standard practices for fiber cement siding, which is designed to balance performance with practicality and efficiency in construction. The specifications aim to prevent unnecessary bulk and weight, while still providing effective protection against environmental factors.