Which of the following is NOT included in non-masonry siding products?

The option identified is indeed associated with masonry siding products, and the reasons are linked to the nature of materials used in construction. Cedar shingles are made from wood and are classified as a type of siding that provides a more traditional aesthetic. They are not considered a non-masonry product as they do not fall under materials like vinyl, aluminum, or steel, which are manufactured products.

In contrast, non-masonry siding products typically include materials that are manufactured rather than derived from natural stone or brick. Vinyl clad, aluminum, and steel all fall under this category as they are produced using synthetic and metallic resources. They are known for their durability and low maintenance, which distinguishes them from natural materials like cedar shingles.

Thus, identifying cedar shingles as the choice not included in non-masonry siding products is correct, as they do not share the same properties or classification as the other options listed.