Full Process of Prefabricated House Construction

The full process of prefabricated house construction mainly includes three core stages: modular design and factory prefabrication, module transportation and on-site assembly, and detail finishing and acceptance, offering both cost-effectiveness and environmental benefits.

1. Modular Design and Factory Prefabrication
The construction of prefabricated houses begins with the breakdown of the building into independent modules, each containing components such as ceilings, floors, walls, and plumbing and electrical systems. Factories employ parallel operations and automated production lines, using high-precision molds to control errors to the millimeter level, ensuring standardized module production. For example, the China Construction Haolong Intelligent Construction Industrial Park can deliver 20,000 to 30,000 modules annually through its vertical factory assembly line, significantly enhancing production efficiency. Modular design allows for the simultaneous manufacture of different components, shortening the overall construction period, while the controlled factory environment reduces material waste and quality fluctuations.

2. Module Transportation and On-Site Assembly
The prefabricated modules are transported to the construction site using specialized vehicles and rapidly assembled using equipment such as tower cranes. Each module comes with a unique 'ID card' indicating the project name, model, and production date, ensuring precise alignment. For instance, a residential development in Shanghai that adopted prefabricated modules reduced its construction period by over 60% compared to traditional methods, significantly decreasing on-site work time. The assembly process resembles 'building with blocks,' with modules secured together through bolts or welding to form a stable structure, reducing reliance on manual skills.

3. Detail Finishing and Acceptance
After module assembly, processes such as cast-in-place connections, waterproofing treatments, and door and window installations are carried out to enhance the overall structural integrity and durability. Interior finishes like wall coatings and flooring can also be completed simultaneously. For example, a public housing project in Shenzhen, Guangdong, combined factory prefabrication with on-site casting, reducing the project completion time from 2.5-3 years to just 1 year and cutting on-site labor by about 50%. During the acceptance phase, checks are conducted on module alignment accuracy, waterproofing performance, and finishing quality to ensure compliance with design standards.

Cost-Effectiveness and Environmental Benefits
Prefabricated houses reduce on-site dust, noise, and construction waste through standardized factory production, improving material utilization by approximately 20% compared to traditional construction. Some cases demonstrate that the main structure of a house can be completed in as little as 15 days, with a 30%-50% reduction in labor demand and significantly lower overall costs. Additionally, modules can be disassembled and reused, further reducing resource consumption and aligning with green building trends.