What is the Optimal Thickness of Prefabricated House Walls?
There is no absolute 'best' thickness for the walls of prefabricated houses; it depends on the specific usage scenarios and requirements. The following introduces common thickness selection criteria from the perspectives of different types of prefabricated walls and their usage scenarios:
Thickness and applicable scenarios of prefabricated panels themselves: Common standard sizes are 120mm and 150mm. A 120mm-thick prefabricated panel, being relatively thin and having a lighter self-weight, is suitable for light-load situations, such as internal partition walls, which can divide spaces without adding excessive burden to the overall building structure; it can also serve as decorative wall surfaces to meet certain aesthetic needs. A 150mm-thick prefabricated panel has higher strength and is often used for structures that need to bear heavier loads, like floor slabs, which have to withstand the weight of people walking and furniture placement; or as exterior walls to resist external wind, rain, and temperature changes. In special cases, for floor slabs in high-rise residential buildings, which need to bear greater loads, prefabricated panels with a thickness of 180 - 240mm may be used; for super high-rise buildings with extremely high structural strength requirements, even 300mm-thick prefabricated panels may be needed. For light-weight partition walls, prefabricated panels with a thickness of 60 - 90mm are sufficient; while for load-bearing walls, to ensure structural safety, a minimum thickness of 120mm is required.
Wall thickness of prefabricated panel houses: Common thicknesses include 75mm, 90mm, 100mm, and 120mm. A 75mm wall is mainly suitable for interior partitions, which can flexibly divide interior spaces and occupy little space. A 90mm wall is mainly suitable for exterior wall insulation, providing a certain insulation effect without making the wall too thick and affecting the building's appearance and usable space. A 100mm wall is not only suitable for exterior wall insulation but can also be used for the construction of light-weight houses, balancing insulation performance and structural strength. A 120mm wall is mainly suitable for heavy industrial buildings, which have high requirements for the load-bearing capacity and stability of the walls, and a 120mm thickness can better meet these needs.
Thickness of cement prefabricated panel walls: Usually ranges from 120mm to 150mm. This thickness range is suitable for brick-and-concrete buildings and can provide sufficient strength and stability for the building.
In addition, a netizen from rural Henan commented that a prefabricated wall panel with a thickness of about 120mm feels too thin, which may be related to factors such as local climatic conditions, building usage functions, and personal expectations for the safety of the house.
