Mud bricks are joined with a mud mortar and can be used to build walls, vaults and domes. If used in a good passive design and in conjunction with other appropriate materials, mud bricks come close to the ideal of minimal environmental impact. The material is ‘borrowed’ from the environment and can be replaced after use.

Traditionally, mud bricks were used in the construction of homes, city walls, and even monumental structures. In modern times, they are commonly used in rural or developing areas and increasingly in sustainable and low-impact construction projects around the world.