Are all self-built houses in rural areas of Hubei box walls?

Are all self-built houses in rural areas of Hubei box walls? Brick-concrete box-wall building structure is indeed adopted in some rural self-built houses in Hubei, especially in rural areas and remote mountainous areas. Box wall is a new building structure system in the field of architecture, which is characterized by using concrete blocks and reinforced concrete slabs to form a box. The wall and floor are integrated, with high strength, low cost and simple construction. This kind of building structure does not need to build formwork, and the construction period is short, and the box wall has better heat dissipation performance, which is more suitable for the climate characteristics of Hubei Province. In the more developed urban areas, due to the huge housing demand market, the proportion of box walls may be low, and generally more beautiful and atmospheric appearance materials and stronger structural systems are used.