What defines a Curtain Wall in construction?

A Curtain Wall in construction is defined as an exterior wall that is supported by the building frame. This type of wall does not carry any structural load beyond its own weight, differentiating it from a load-bearing wall. The main purpose of a curtain wall is to enclose the building and provide aesthetic appeal while allowing for large areas of glass or other materials, giving the building its modern appearance. The structure of the building itself, such as columns and beams, supports the curtain wall, ensuring that it efficiently fulfills its role without the responsibility of supporting the structure.

The other options describe different types of walls or attributes that do not align with the specific function and characteristics of a curtain wall, making the correct identification crucial for understanding building design and materials.