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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What is the purpose of mineral granules on roof coating?

To provide color
To enhance adhesion
To reflect sunlight
To protect from weather damage

The correct answer is: To reflect sunlight

The purpose of mineral granules on roof coatings primarily involves reflecting sunlight. These granules are strategically applied to reduce heat absorption by the roof surface, helping to keep buildings cooler. By reflecting sunlight, they can significantly lower energy costs associated with air conditioning during hot weather, thereby contributing to energy efficiency. In addition to their reflective properties, mineral granules also provide an additional layer of protection for the underlying materials from ultraviolet (UV) rays, which can cause degradation over time. Overall, having mineral granules is essential for optimizing the performance of roof coatings in terms of energy savings and longevity.