Construction Supervisor License Practice Exam 2025 – All-in-One Study Guide for Exam Success!

Water-resistant board is specifically designed for high-moisture areas, making it the ideal choice in environments such as bathrooms, kitchens, and laundry rooms. This type of gypsum board is treated to enhance its moisture resistance and reduce the potential for mold growth, which is critical for maintaining indoor air quality and the integrity of the building structure.

In contrast, other types of gypsum boards such as Type C, Type A, and Type X serve different purposes. Type C is often used for sound control and is not specifically designed for moisture resistance. Type A is a general-purpose gypsum board, suited for a variety of applications but lacking the special properties required for high-moisture environments. Type X offers fire resistance but does not provide the moisture-proof qualities necessary for areas exposed to high humidity or direct water exposure. Therefore, water-resistant board stands out as the most suitable option for such conditions.