What does wall covering mainly contribute to a building?

Wall coverings primarily function as a protective and insulating layer for a building. This is crucial for multiple reasons. Firstly, wall coverings shield the underlying structure from environmental elements such as moisture, wind, and pests, which can lead to deterioration over time. By acting as a barrier, they help maintain the integrity of the building, ensuring that the internal walls and framework are safeguarded from damage.

Additionally, certain wall coverings provide insulation properties, contributing to the energy efficiency of the building. They can help regulate indoor temperatures by reducing heat transfer, making it easier to maintain a comfortable living environment and potentially lowering energy costs.

Overall, while wall coverings can certainly enhance the aesthetic appeal of a space and serve as a temporary surface finish in some cases, their primary contributions are more aligned with protection and insulation, affirming the significance of option C.