What is a parapet? Are the walls on the roof and on the ground considered as parapets?

Refers to the low wall outside the roof of a building. Its main function is not only to maintain safety, but also to make waterproof bricks at the bottom to avoid water seepage from the waterproof layer or rainwater overflowing from the roof. According to the Technical Regulations for Building, parapets are regarded as railings. For example, if the building is above 65,438+00 floors, the height should not be less than 65,438+0.2 meters. In order to prevent the manufacturer from intentionally heightening the parapet, it is also stipulated that the height should not exceed 1.5 meters. A concave-convex low wall above the ancient city wall

The fence built on the ground was called parapet in ancient times. Now the word "parapet" in architectural theory comes from the previous fence.