Prefabricated Panel House Construction

The construction of prefabricated panel houses involves key steps such as prefabricated panel production, foundation preparation, component installation, wall and floor construction, and roof installation. The modular approach can further optimize construction efficiency.

Prefabricated Panel Production

Prefabricated panels are the core components of house construction and are typically completed in factories. The production process involves first nailing a hollow mold with wooden planks, arranging a steel reinforcement framework inside the mold, and then filling the hollow part with cement. After the cement has completely dried, the external wooden planks are knocked off to form the prefabricated panel. Depending on structural requirements, prefabricated panels come in two types: solid and hollow. Hollow prefabricated panels reduce weight by minimizing internal materials, saving costs, and are suitable for areas with lower load-bearing requirements. Solid prefabricated panels are used in critical load-bearing areas, such as walls or floor slabs.

Foundation Preparation and Chassis Frame Construction

Before house construction, a cement foundation must be poured to ensure a flat surface and adequate load-bearing capacity as per design requirements. After the foundation is complete, the chassis frame is installed as the foundational support structure for the house. The chassis frame must be precisely positioned according to the design drawings to ensure the stability of subsequent component installations.

Component Installation and Fixing

Prefabricated components (such as wall modules and floor joists) are transported to the site and fixed to the chassis frame using metal connectors or nail guns. For example, floor joists, as prefabricated beam components, must ensure that each joint is securely locked with metal connectors to prevent loosening. Wall modules must be installed vertically aligned and fixed with lateral supports to form a stable three-dimensional structure.

Wall and Floor Construction

After the wall modules are erected and fixed, the basic outline of the house is formed. The installation of the second-floor beams must be connected to the top crossbeams of the walls, ensuring structural integrity through bolts or welding. During this stage, it is crucial to check whether the load transfer between floors is reasonable to avoid safety hazards caused by poor connections.

Roof Installation

Roof installation is a technically demanding process. Prefabricated triangular trusses must be precisely lifted onto the top crossbeams of the walls using cranes and fixed with high-strength bolts. The spacing between trusses must comply with design specifications to ensure even roof load distribution while reserving space for the installation of waterproof and insulation layers.

Advantages of Modular Construction

If a modular construction approach (an upgraded form of prefabricated panel houses) is adopted, elements such as ceilings, walls, and plumbing and electrical systems are prefabricated in factories, requiring only assembly on-site. This approach can reduce construction time by more than 60%, while also minimizing noise, dust, and construction waste, aligning with green building principles. However, modular construction requires a high level of industrial infrastructure, including automated production lines and intelligent management systems.