What is the material at the top of a parapet wall called?

The material at the top of a parapet wall is referred to as coping. Coping serves a critical function in protecting the parapet wall from water infiltration by directing rainwater away from the top. It is typically designed to be sloped or have a slight overhang to facilitate drainage, preventing moisture from seeping into the wall structure, which can lead to deterioration over time.

Coping materials can vary but often include stone, concrete, or metal, providing both functional and aesthetic enhancements to the building. The importance of coping cannot be overstated, as it is crucial in maintaining the integrity and longevity of the parapet wall by mitigating potential water damage. This makes coping an essential component in the design and maintenance of roofing systems and exterior walls that feature parapets.