What is the Appropriate Thickness for Prefabricated House Walls

The thickness of prefabricated house walls should be determined based on specific usage scenarios and requirements. Here are common thickness specifications and selection points:

I. Thickness Selection by Functional Scenario

1. Internal Partitions: A 75mm thick wall is suitable for dividing indoor spaces. It can effectively separate functional areas without occupying too much space, making it ideal for scenarios with high space utilization requirements.
2. Lightweight House Construction: A 100mm thick wall balances thermal insulation performance and structural stability. It is commonly used for the exterior walls of low-rise residential buildings or temporary structures, meeting basic load-bearing needs.
3. Heavy-Duty Industrial Buildings: A 120mm thick wall provides higher structural strength, suitable for factories, warehouses, and other scenarios that need to withstand significant loads, ensuring building stability.
4. Special Scenarios: High-rise residential floor slabs may use 180 - 240mm thick prefabricated panels, while ultra-high-rise buildings may even require 300mm thick panels to enhance load-bearing capacity. Lightweight partition walls can use 60 - 90mm thick panels to reduce self-weight.

II. Thickness Selection by Structural Type

1. Brick-Concrete Structures: The thickness of cement prefabricated panel walls is usually 120 - 150mm, which can meet structural strength requirements while controlling costs.
2. Brick Formwork Applications: When used as temporary support structures, the thickness of prefabricated panels needs to be determined according to the actual project conditions. Common specifications include 90mm, 100mm, 120mm, 200mm, etc., and should be selected based on design loads and construction conditions.

III. Impact of Performance Requirements on Thickness

1. Thermal Insulation Performance: Wall thickness is positively correlated with thermal insulation effect. For example, a 90mm thick wall is suitable for basic exterior wall thermal insulation needs, while a 100mm thick wall can further enhance thermal insulation capacity and reduce energy consumption.
2. Sound Insulation Performance: Increasing thickness can effectively block sound transmission. A 120mm thick wall can reduce equipment noise in industrial buildings, while a 150mm thick floor slab can minimize interference between floors in residential buildings.
3. Self-Weight Control: The thinner the wall, the lighter the overall self-weight, which helps avoid foundation settlement issues. Lightweight partition walls using 60 - 90mm thick panels can significantly reduce the building load.

IV. Comprehensive Selection Recommendations In actual projects, it is necessary to balance functionality, performance, and cost:

• For the exterior walls of low-rise residential buildings, 100mm thick prefabricated panels are recommended to balance thermal insulation and structural requirements.
• For temporary buildings or internal partitions, 75mm thick walls can be selected to improve space utilization.
• For high-rise buildings, the floor slab thickness should be determined according to design specifications to ensure load-bearing safety.
• For industrial buildings, 120mm or thicker walls should be selected based on equipment loads and usage environments.