What type of veneer is all siding and EIFS considered to be?

Siding and Exterior Insulation and Finish Systems (EIFS) are categorized as attached veneers because they rely on being secured to the structural frame of a building rather than being fixed through an anchoring system or directly adhered to a substrate. Attached veneers provide a layer of protection while allowing for some movement and ventilation, essential for preventing moisture buildup and enabling drainage.

This classification emphasizes the method in which these materials are installed and how they interact with the building structure. Adhered veneers, by contrast, are typically glued or fixed directly to a substrate without additional structural support, while anchored veneers utilize nails, screws, or other methods to secure the material through the underlying structural elements. Composite veneers generally refer to materials made from two or more components, which does not specifically describe typical siding or EIFS.

Consideration of the building envelope and the differences in these attachment methods is crucial for understanding how various siding options perform in terms of durability, installation methods, and moisture management.