What is stucco primarily used for in construction?

Stucco is primarily used as a slow-setting plaster for coating walls and ceilings, which makes it an ideal choice for both interior and exterior finishes. Its composition, typically involving a mixture of lime, sand, and water, allows it to be applied in layers, creating a durable surface that can be painted or textured after it dries. This attribute makes stucco versatile for aesthetic purposes as well as providing protection against the elements.

In the context of construction, stucco serves several practical functions. It provides insulation, weatherproofing, and an appealing finish, enhancing the overall design of a building. Its application process allows for a variety of finishes to be achieved, contributing to its popularity in various architectural styles, especially in Mediterranean and Southwest American designs.

The other options, while related to construction in some manner, do not accurately capture the primary use of stucco. Stucco is not typically utilized for building strong foundations, designing vaulted ceilings, or making decorative stone carvings, as these tasks employ different materials and techniques suited for their specific purposes.