ICC Permit Technician Practice Exam

In public restrooms, walls within 2 feet of a water closet must have a smooth, non-absorbent surface to a point of at least ___ inches above the floor.

1. 6

2. 48

3. 24

4. 60

The correct answer is: 48

In public restrooms, it is essential to maintain cleanliness and hygiene, especially in areas that are likely to be exposed to water and waste. The requirement for walls within 2 feet of a water closet to have a smooth, non-absorbent surface up to a specific height is intended to prevent the buildup of bacteria and facilitate easier cleaning. Having a smooth, non-absorbent surface to at least 48 inches above the floor helps to minimize the potential for moisture retention, which can lead to mold growth and other sanitation concerns. This height is typically above the splash zone where water and waste may come into contact, ensuring that the surface remains hygienic and easy to maintain. This requirement aligns with public health standards aimed at ensuring safe and sanitary restroom facilities in public buildings, making 48 inches the appropriate height specified in the building codes.