Which building type allows for exterior and interior elements made of wood?

Type V construction is characterized by the use of wood for both the exterior and interior structural elements. This building type typically includes residential structures, such as single-family homes and small apartment buildings, where wood is a primary building material.

The rationale behind the prevalence of wood in Type V construction lies in its availability, cost-effectiveness, and ease of use for builders. Structures built with Type V materials are able to achieve certain design elements and aesthetic qualities that are desirable in residential settings.

In contrast, other building types, such as Type I, Type II, and Type IV, are designed with non-combustible materials or a combination of non-combustible and limited combustibility materials. Type I construction uses fire-resistant materials like concrete and steel, making it highly fire-resistant but not allowing wooden elements. Type II similarly favors non-combustible materials but may allow for some limited use of wood in non-structural components. Type IV construction, also known as heavy timber, involves larger wooden components but does not permit a fully wooden structure as found in Type V.

Thus, Type V construction stands out as the only category that fully embraces both exterior and interior wood elements, which directly corresponds to the features outlined in the question.