What is siding material not considered?

Siding material serves multiple functions, but insulation is not one of its primary roles. While certain types of siding can provide some level of thermal resistance, they are not designed or required to function as insulation. Rather, siding is primarily intended for protection against weather elements, serving as a barrier that defends the underlying structure from moisture, wind, and other environmental factors. Additionally, siding enhances the aesthetic appeal of a building, making it also a decorative element. Furthermore, certain siding materials contribute to weatherproofing by preventing water infiltration and protecting against other elements. In contrast, insulation is a specific material or system specifically designed to reduce heat transfer, and its effectiveness relies on its properties and installation rather than the characteristics of the siding.