What is the Thickness of Walls in Prefabricated Houses?
The thickness of cement prefabricated panel walls in prefabricated houses typically ranges from 0.12 meters to 0.15 meters. Here is a detailed explanation:
In prefabricated houses, the thickness range of cement prefabricated panel walls is primarily determined based on structural safety, material properties, and usage requirements. According to industry standards and practical applications, the thickness is usually divided into two standard grades: 120 millimeters (0.12 meters) and 150 millimeters (0.15 meters). This range takes into account both lightweight needs and comprehensive performance considerations such as load-bearing capacity, sound insulation, and thermal insulation.
1. Application Scenarios for 120-millimeter Thickness
120 millimeters is the most common wall panel thickness in prefabricated houses, suitable for non-load-bearing walls or exterior walls of low-rise buildings. For example, in single-story or double-story residential buildings, such wall panels can effectively divide indoor spaces while meeting basic sound insulation and fire prevention requirements. Their advantage lies in the reduced material usage, which lowers the building's self-weight and is suitable for projects sensitive to cost or with low load requirements. Additionally, 120-millimeter wall panels are more convenient for transportation and installation, shortening the construction period.
2. Application Scenarios for 150-millimeter Thickness
150-millimeter wall panels are mostly used in load-bearing structures or scenarios with higher performance requirements. For example, in multi-story prefabricated houses, when exterior walls need to bear the load of floor slabs, a thickness of 150 millimeters provides stronger structural stability. Meanwhile, thicker wall panels significantly improve sound insulation (e.g., reducing noise transmission by 3-5 decibels) and thermal insulation performance (increasing thermal resistance by about 20%), making them suitable for regions with extreme climates or high requirements for living comfort. Additionally, some special-purpose buildings (such as industrial plants and warehousing facilities) also adopt 150-millimeter wall panels to enhance durability.
3. Basis for Thickness Selection
The determination of wall panel thickness requires comprehensive consideration of building stories, load requirements, functional positioning, and local regulations. For example, China's "Technical Standard for Prefabricated Concrete Buildings" (GB/T 51231-2016) stipulates that the minimum thickness of prefabricated wall panels should not be less than 100 millimeters, but in practical engineering, 120 millimeters or 150 millimeters are usually adopted to ensure safety. Furthermore, if the building is located in an earthquake-prone area, the wall panel thickness may need to be further increased to enhance seismic performance.
