Thickness of Prefabricated Panels for House Walls

The thickness of prefabricated panels for house walls varies depending on the application and building type, with a common range of 75mm to 400mm, determined by specific functional requirements and structural needs.

1. General Building Scenarios
In brick-and-concrete buildings, the thickness of cement prefabricated panel walls is primarily 120mm and 150mm. Among them, the 120mm thickness is suitable for exterior walls of low-rise or multi-story residential buildings, balancing structural stability and material cost control; the 150mm thickness is more commonly used in multi-story residential buildings or public buildings with higher load-bearing requirements, such as schools and office buildings. For heavy industrial buildings, even as walls, the thickness of prefabricated panels needs to reach 120mm to ensure structural safety under scenarios such as equipment vibration and cargo stacking.

2. Special Functional Scenarios

• Interior Partitions: Typically 75mm thick, primarily used for space division, balancing sound insulation and lightweight requirements, such as office partitions or non-load-bearing walls in residential buildings.
• Exterior Wall Insulation: Common thicknesses are 90mm and 100mm. The 90mm thickness achieves basic energy efficiency through built-in insulation layers, suitable for mild climate regions; the 100mm thickness further optimizes insulation performance while meeting the construction needs of lightweight buildings (such as temporary buildings and mobile homes).
• Underground Garages: Due to the need to withstand soil pressure, groundwater infiltration, and vehicle loads, the thickness of prefabricated panels needs to reach 300mm to 400mm. In such scenarios, the panels are typically made of high-strength concrete or reinforced with steel bars to prevent cracking or deformation.

3. Core Principles for Thickness Selection
The determination of prefabricated panel thickness requires comprehensive consideration of structural safety, functional use, and cost-effectiveness. For example, overly thin exterior walls in residential buildings may lead to poor sound insulation and insufficient insulation; overly thick walls in industrial buildings increase self-weight and costs. Design should be based on standards such as the "Building Structural Load Code," calculating parameters such as load and seismic grade to ultimately determine a reasonable thickness.