Prefabricated House Construction Process Flowchart

The construction process of prefabricated houses can be divided into four stages: factory custom production, modular packaging and transportation, ocean shipping, and on-site assembly, achieving efficient house building through industrial processes.

1. Factory Custom Production
The core of prefabricated houses lies in dividing the building into independent standard modules (such as bedrooms, kitchens, bathrooms, living rooms, etc.), with each module undergoing full-process manufacturing in the factory. Specific procedures include: steel structure welding to form the main framework, wall insulation and soundproofing material installation, pre-embedding of water and electricity pipelines at designated locations, door and window installation, and interior finishing (such as flooring, wall paint, bathroom fixtures, etc.). When leaving the factory, the modules are complete rooms with decoration, water and electricity, and supporting facilities, requiring only on-site assembly for immediate use. This stage ensures uniform quality through industrial production and significantly shortens the on-site construction period.

2. Modular Packaging and Transportation
Finished modules require strict protective treatment: uniform coding and labeling for tracking, classified inspection to ensure no damage, followed by waterproof, anti-corrosion, and shock-resistant packaging (such as using moisture-proof film, foam fillers, etc.). For transportation, specialized flatbed trucks are used to transfer the modules to domestic ports, with module dimensions adapted to international standard shipping containers to reduce cross-border logistics costs. The key in this stage is to protect the structural integrity of the modules and prevent damage during transportation due to bumps or environmental factors.

3. Ocean Shipping
Modules are shipped to global target ports via ocean-going cargo ships, with full logistics traceability. Shipping times vary by destination: approximately 1 week for Southeast Asia, over 20 days for the Middle East, and about 1 month for Europe and the Americas. Logistics companies need to monitor the ship's position, weather conditions, and customs clearance progress in real-time to ensure timely arrival of the modules. This stage relies on a global logistics network and is a key link in the cross-border application of prefabricated houses.

4. On-Site Assembly
After arriving at the overseas construction site, the modules are lifted to designated positions by cranes and connected via high-precision interfaces (such as bolts, buckles, etc.). Since water and electricity pipelines are pre-embedded within the modules, only pipeline connections and equipment debugging are required on-site, eliminating the need for traditional wall building, plastering, or pipeline laying procedures. Taking the example of a 63-unit elderly care apartment project in the UK, from module arrival to the completion of the entire building took only 14 days, significantly improving construction efficiency. The core of this stage lies in the standardization of modular design and the collaboration capabilities of the construction team.

Prefabricated houses achieve advantages such as short construction periods, controllable quality, and environmental protection and energy efficiency through the full industrial chain of 'factory-transportation-site', making them particularly suitable for overseas emergency housing, commercial buildings, and other scenarios.