What is a parapet wall?

A parapet wall is a low wall that extends above the roofline, primarily serving to protect the building from fire exposure, especially in cases where adjacent structures may pose a fire risk. This design helps to prevent flames and heat from spreading from one building to another and can also protect the roof and upper parts of the structure during fire incidents.

Additionally, parapet walls can offer improvements in safety by acting as a barrier against falling debris from the roof and providing a safety railing for maintenance personnel. They play a crucial role in the overall fire strategy of a building, especially in urban environments where structures are close together.

Other options fail to capture the primary purpose of a parapet wall: directing traffic pertains to roads and navigation, support of the roof relates to structural integrity rather than fire protection, and decorative elements do not encompass the essential safety features that parapet walls provide.