ICC Commercial Building Inspector Practice Test

Parapet walls must be coped with noncombustible materials that have a width of at least what?

1. No less than the thickness of the parapet wall

2. One inch

3. Two inches

4. Three inches

The correct answer is: No less than the thickness of the parapet wall

Coping on parapet walls is essential for several reasons, including water management and protecting the wall from the elements. The requirement for coping to be at least the thickness of the parapet wall ensures that the material used serves its function effectively while providing adequate coverage and protection. When the coping material matches or exceeds the thickness of the parapet wall, it helps to create a consistent edge that directs rainfall away from the wall to prevent water penetration and potential damage. Additionally, materials that meet this standard are typically designed to withstand environmental stresses, including wind and debris, enhancing the structural integrity of the parapet. In contrast, choices that specify a width of just one inch, two inches, or three inches would not ensure adequate coverage if the parapet wall’s thickness exceeds these measurements. For instance, if a parapet wall is thicker than three inches, using a coping width of only three inches would create an inadequate protective barrier. Thus, adhering to the specification that the coping width must be at least equal to the parapet wall’s thickness is crucial for proper functionality and durability.