Red Seal Lather (Interior Systems Mechanic) Practice Exam

In what application would you most likely use moisture-resistant drywall?

1. Living rooms

2. Kitchens and bathrooms

3. Basements only

4. Nothing, it has no applications

The correct answer is: Kitchens and bathrooms

Moisture-resistant drywall, commonly known as green board, is specifically designed to withstand higher levels of humidity and moisture compared to standard drywall. Because of its properties, it is most appropriate for use in areas that are frequently exposed to moisture, such as kitchens and bathrooms. In these applications, moisture-resistant drywall helps prevent issues like mold growth, which can arise in environments with high moisture levels due to cooking, bathing, and other activities. While it may be applicable in basements, the most critical areas where moisture can be problematic due to constant humidity and the presence of water sources are kitchens and bathrooms. Therefore, using moisture-resistant drywall in these spaces is essential for ensuring durability and maintaining a healthy indoor environment. Other areas, like living rooms, typically do not require moisture-resistant drywall because they are not subjected to the same level of moisture exposure. The option suggesting that moisture-resistant drywall has no applications overlooks its specific designed use for moisture-prone areas.