Wall

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- It is a solid structure that defines and sometimes protects an area.

- A wall delineates a building and supports its superstructure, separates space in buildings into rooms, or protects or delineates a space in the open air.

- Types of walls: · Building wall: support roofs and ceilings. · Boundary wall: include privacy walls, boundary-marking walls on property, and town walls. · Separation wall: separate one population from another. · Retaining wall: serve to provide a barrier to the movement of earth, stone or water. · Shared wall: Special laws often govern walls shared by neighbouring properties. · Portable wall: are used to take a large open space and effectively divide it into smaller rooms.