North Carolina Building Contractor License Practice Exam

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Prepare for the North Carolina Building Contractor License Exam. Explore detailed quizzes with explanations and challenging multiple-choice questions designed for you. Get ready for your licensing success!

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Waterproofing must be applied at least how many inches above the maximum elevation of the ground water table?

2 inches
4 inches
6 inches
8 inches

The correct answer is: 4 inches

The correct requirement for waterproofing application is to ensure protection against potential water intrusion, which is crucial for maintaining the integrity of structures, especially in areas prone to flooding or high water tables. In North Carolina, as a guideline, waterproofing should be applied at least 4 inches above the maximum elevation of the ground water table. This height provides a buffer to accommodate fluctuations in the water table, seasonal changes, and ensures that any water that might rise does not breach the waterproof barrier. Applying it at this level minimizes the risk of moisture problems, such as mold growth or structural damage, by creating a safeguard against groundwater. Each selected height for waterproofing corresponds to practical construction practices and regulations focused on durability and preventive measures in building codes, highlighting the importance of proper waterproofing techniques in construction.