For wall finishes, what is a common characteristic of an expanded vinyl wall covering?

An expanded vinyl wall covering is specifically designed with a layered structure that includes a vinyl base coat layer. This base coat provides durability and helps in the application of the expanded vinyl. The construction of expanded vinyl involves a process where vinyl is expanded and formed, allowing it to achieve a textured surface that can mimic the appearance of other materials while maintaining the properties of vinyl.

The design and function of the base coat layer are essential because they contribute to the overall performance, including the covering's resistance to scrapes, moisture, and fading. This characteristic makes it suitable for various environments, including commercial spaces where durability and aesthetics are important.

While other choices may describe different types of wall coverings, they do not accurately reflect the specific characteristics of expanded vinyl wall coverings. For instance, a non-woven wall covering is typically made from fibers that are bonded together rather than using a vinyl base coat, and materials that lack a skin coat or are primarily made of wood don't align with the properties of expanded vinyl.