The materials used to build the missions varied somewhat depending on the location and availability of resources, but adobe was the most common material used for the walls of the missions. Adobe is a type of sun-dried mud brick that is made from a mixture of clay, sand, water, and straw. The mixture is formed into bricks and then left to dry in the sun. Adobe bricks are relatively inexpensive and easy to make, and they provide good insulation and protection from the elements.
In some cases, the missions were also built with stone or wood. Stone was often used for the foundations of the missions, and it was also sometimes used for the walls. Wood was used for the roofs of the missions, and it was also sometimes used for the walls.
The missions were typically built with thick walls, which helped to keep them cool in the summer and warm in the winter. The walls were also often whitewashed, which helped to reflect the sunlight and keep the missions cool.
The missions were also often decorated with religious symbols, such as crosses and statues. These symbols were often carved into the stone or wood of the missions, or they were painted on the walls.
