How to Build Finished Prefabricated Houses
The construction of finished prefabricated houses involves five stages: design, production, transportation, installation, and final detailing and acceptance, with strict quality control and consideration of environmental factors.
Design Phase: Leveraging BIM digital modeling technology, comprehensive and precise planning is carried out for the house structure, layout, plumbing and electrical systems, and interior decoration, achieving integrated and standardized whole-house design to eliminate traditional construction errors and rework. Meanwhile, based on requirements, architectural functions, dimensions, and styles are clarified, with full consideration given to the standardization and modularization of prefabricated components. Structural design must account for the load-bearing performance and connection methods of prefabricated components.
Production Phase: Over 70% of traditional on-site construction processes are transferred to intelligent factory assembly lines, including steel structure welding, wall pouring, insulation and waterproofing installation, plumbing and electrical pre-installation, interior decoration, and bathroom and furniture installation. Each room is an independent standardized module, arriving at the site as a fully finished product without the need for secondary construction. Prefabricated components are produced in the factory according to design drawings, utilizing advanced production lines and processes to ensure component quality and precision, with foundations, walls, floors, roofs, and other parts all completed in the factory.
Transportation Phase: After production, prefabricated modules undergo unified waterproofing and reinforcement treatments before being transported to the construction site via specialized vehicles and ocean freight. Finished modules are transferred to domestic ports using dedicated flatbed trucks, with dimensions fully compatible with international standard shipping containers to reduce transportation costs.
Installation Phase: On-site construction is simplified, requiring only lifting equipment to assemble and connect modules according to pre-set plans, align pipelines, and reinforce structures. For example, in rural prefabricated houses in South Korea, foundation piles are installed to connect beams, which are then horizontally measured and adjusted before being secured with nuts. Foam sealant is used to fill gaps for support, and cement is applied at nut fixation points for sealing. Stairs are lifted into place, floors are laid, and finally, grout is applied to all component joints.
Final Detailing and Acceptance Phase: After assembly, workers reinforce joints, complete exterior wall finishing, test pipelines, and clean the site. Upon passing acceptance, the house is ready for immediate occupancy, office use, or commercial purposes.
Additionally, the construction of prefabricated houses requires strict quality control and management to ensure the smooth progress of each stage. Meanwhile, local climate and environmental factors must be considered during construction to ensure the stability and durability of the building.
