Longlou Container House

Longlou container houses typically refer to housing types that are modularly designed, prefabricated in factories, and then transported to the site for assembly. They are characterized by rapid deployment, controllable costs, and strong mobility, and are widely used in temporary construction sites, emergency housing, cultural tourism homestays, and other fields.

I. Core Manufacturing Processes and Procedures

The manufacturing of container houses is based on standardized production lines, with core processes including:

1. Steel Structure Frame Welding: Hot-dip galvanized cold-formed steel is used as the main structure, and a high-strength frame is formed through welding to ensure wind and earthquake resistance. For example, the packed container houses manufactured by Nanjing Changyou Zhizao adopt an integrated top-bottom welding structure, solving the problem of leakage in traditional assembled containers.
2. Wall and Roof Panel Prefabrication: Walls often use fire-resistant polyurethane sandwich panels or rock wool panels, which combine thermal insulation and fire resistance functions; roof panels are processed with composite filling of thermal insulation materials and covered with metal panels or calcium silicate boards.
3. Internal System Embedding: Pre-installation of water and electricity pipelines, doors and windows, and sanitary facilities is completed in the factory, reducing on-site wet work. For example, residential containers have integrated circuits, interiors, and sanitary facilities before leaving the factory and can be used upon arrival.
4. Trial Assembly and Quality Inspection: Modules are trial-assembled before leaving the factory to ensure that components match correctly and reduce on-site installation error rates.

II. Main Product Types and Application Scenarios

According to functional requirements, container houses can be divided into the following three categories:

1. Packed Container Houses: Suitable for scenarios such as construction site dormitories and office areas, supporting multi-layer stacking and combination, with characteristics of rapid disassembly and assembly and reusable turnover. For example, China Construction Science and Industry Corporation adopted a modular solution for a hotel project in Papua New Guinea, halving the construction period.
2. Light Steel Keel Houses: Using cold-formed thin-walled light steel keels for load-bearing, with customizable appearances and house types, suitable for long-term use scenarios such as cultural tourism homestays and scenic area supporting housing. Their thermal insulation material filling and irregular design capabilities meet differentiated needs.
3. Functional Sentry Boxes and Supporting Houses: Including security sentry boxes, environmental protection public toilets, etc., with flexible adjustment of size and layout, commonly seen in municipal emergencies, commercial pop-ups, and other scenarios. For example, creative containers create popular commercial spaces through irregular customization, reducing fixed asset investment risks.

III. Technological Advantages and Industry Innovations

1. Cost and Efficiency Optimization: Modular production shortens on-site construction periods by more than 50%, reduces labor costs by 60%-70%, and decreases material waste from 8%-12% on traditional construction sites to 3%-5%. For example, Nanjing Changyou Zhizao reduced the transportation volume of packed container houses by 40% through flattened transportation design, reducing long-distance logistics expenses.
2. Performance Breakthroughs: Aiming at problems such as leakage and poor thermal insulation in low-end containers, the industry improves reliability through technologies such as built-in drainage systems and thickened fire-resistant rock wool wrapping. For example, residential containers adopt tin foil wrapping technology, significantly improving thermal insulation and fire resistance.
3. Emergency Response Capabilities: The rapid deployment characteristics of modular houses are prominent in medical emergencies. Nanjing Changyou Zhizao once delivered 246 sets of makeshift hospitals in 8 days, supporting the anti-epidemic needs in Shanghai and Ningde, Fujian.