Largest Prefabricated Foam House
Among the currently known large-scale cases of prefabricated foam houses, the Japanese Dome House has a single-unit building area of 36 square meters, while the EPS module house in Beiyuan Village, Hejin City, Shanxi Province, China, has a total area exceeding 300 square meters, with the former having a clearer prefabricated attribute.
Japanese Dome House: A Typical Case with Clear Prefabricated Attributes
The Japanese Dome House is a representative case in the field of prefabricated foam houses, with a single-unit building area of 36 square meters. The house uses expanded polystyrene (EPS) foam as its main structural material. Standardized building modules are prefabricated in factories and then transported to the site for rapid assembly. This construction method not only shortens the construction period but also reduces the complexity of on-site operations and the impact on the environment. The design inspiration for the Dome House comes from dome structures, which offer excellent wind and earthquake resistance. Additionally, the thermal insulation properties of the foam material make it outstanding in terms of energy efficiency. Although its single-unit area of 36 square meters is not large, as a fully prefabricated residence, it demonstrates a high level of technical maturity in modular design and industrial production, making it a typical case with a relatively large scale and clear prefabricated attributes in the field of prefabricated foam houses.
EPS Module House in Beiyuan Village, Hejin City, Shanxi Province, China: Large Area but Unclear Degree of Prefabrication
A two-story house was built using EPS modules in Beiyuan Village, Hejin City, Shanxi Province, China, with a total area exceeding 300 square meters. EPS modules are building components made of expanded polystyrene foam, which are lightweight, thermally insulating, and fire-resistant, and are widely used in the construction field. However, although this case uses EPS modules, it does not clearly state whether it is a fully prefabricated structure. If only some components are prefabricated modules while other parts still rely on on-site construction, its degree of prefabrication may be lower than that of the fully modular Dome House. Therefore, despite its large total area, in the context of prefabricated foam houses, its clarity in terms of prefabricated attributes is inferior to that of the Dome House.
Comprehensive Consideration: Balancing Prefabrication Degree and Area
When evaluating the scale of prefabricated foam houses, it is necessary to comprehensively consider the degree of prefabrication and the single-unit area. The Dome House, with its 36-square-meter single-unit area and fully prefabricated characteristics, has an advantage in terms of prefabricated attributes. In contrast, although the EPS module house in Beiyuan Village has a larger area, the uncertainty regarding its degree of prefabrication makes it difficult to directly compare. Therefore, if considering both the degree of prefabrication and the single-unit area, the 36-square-meter case of the Dome House has clearer prefabricated attributes and is a relatively typical representative among the currently known large-scale prefabricated foam houses.
