Prefabricated House YY
Prefabricated houses are an efficient form of construction that involves factory-prefabricated modules assembled on-site, offering advantages such as fast construction speed, controllable quality, and environmental protection and energy conservation.
Construction Method: Prefabricated houses divide buildings into independent modules, with core components such as ceilings, floors, and water and electricity pipelines prefabricated in factories. For example, rural prefabricated houses in South Korea are fixed with 5-ton foundation piles, with beams quickly connected through mortise-and-tenon joints. After stair hoisting, a 5-centimeter-thick floor slab is laid, and gaps are grouted. The Guangdong Shenzhen affordable housing project achieves overall structural formation through the assembly of 6,028 concrete modules. This “building block” construction method shifts on-site construction from traditional wet operations to dry operations, significantly reducing dependence on weather and the environment.
Efficiency Advantages: The industrial production model significantly shortens construction periods. In the South Korean case, the main structure takes only 14 days to build. The Shenzhen affordable housing project uses modular technology to compress the completion and delivery time from the traditional 2.5-3 years to 1 year, reducing on-site labor by about 50%. Parallel operations and automated production lines in factories shorten the construction period by more than 60% compared to traditional buildings. For example, steel bar positioning accuracy is measured in millimeters, and each module comes with an “ID card” recording production information to ensure full traceability.
Technical Features: Modular design supports the combination of standardization and personalization. For example, the “Glacier” model designed by Champion Homes in the United States achieves diverse housing layouts through module combinations. Factories use high-precision molds and automated equipment to ensure component dimensional errors are controlled within millimeters. Additionally, modules are connected through bolts, welding, or grouting to form an overall structure that meets seismic and fire resistance requirements.
Application Scenarios: Prefabricated houses have been widely used in residential buildings, villas, affordable housing, and other fields. Overseas market demand continues to grow, with the global modular construction market expected to exceed $142.8 billion by 2030, particularly excelling in emergency buildings and temporary housing scenarios. For example, post-disaster reconstruction can quickly restore residential functions through prefabricated modules, reducing the risk of secondary disasters.
Quality and Environmental Protection: The closed factory prefabrication environment reduces on-site noise, dust, and construction waste, meeting green building standards. In the South Korean case, the foundation is wrapped in plastic sheeting to prevent concrete moisture loss and enhance durability. The Shenzhen project reduces material waste through centralized production, achieving efficient resource utilization. Additionally, modules can be disassembled and reassembled, extending the building lifecycle and promoting the development of a circular economy.
