Which type of buildings primarily use combustible materials?

Single-family homes primarily use combustible materials due to their construction methods and typical design. In residential construction, wood framing is a common choice, as it is readily available, cost-effective, and easy to work with. These homes often feature wooden structures for walls, roofs, and floors, as well as combustible materials for insulation, finishes, and furnishings.

This contrasts with other types of buildings like skyscrapers and high-rise commercial buildings, which often use steel and concrete for structural integrity and fire resistance. Industrial complexes can also vary, but many are designed with non-combustible materials to facilitate safety due to the presence of hazardous materials and equipment. Therefore, single-family homes stand out as the category where the predominant use of combustible materials aligns with their construction practices and building codes.