How many inches is the minimum depth required for parapet wall coping materials?

The minimum depth required for parapet wall coping materials is determined by various factors, including structural integrity and weather resistance. A depth of 2 inches is generally considered sufficient to ensure that the coping materials can effectively protect the parapet from water infiltration, damage, and the effects of weathering. This depth also allows for proper drainage and minimizes the risk of cracking or breaking due to temperature changes and moisture absorption.

In summary, a minimum coping depth of 2 inches strikes a balance between functionality and material performance, making it the correct choice for this requirement. Other depths may either be insufficient for effective protection or unnecessary for the intended purpose.