As a leading advocate of residential industrialization in China, Vanke has steadily developed a construction approach that aligns with market demands, industry trends, and leadership goals through standardization, industrial processes, and dedicated research. This has culminated in the creation of the “5+2” construction system, which includes five core construction methods:
① System templates
② Full concrete exterior walls
③ Prefabricated interior partition walls
④ Climbing frame systems
⑤ Interlaced efficiency improvements
Alongside two major prefabricated applications:
① Prefabricated decoration
② Moderate prefabrication.
Vanke Jinyu Academy Project
On May 30, 2019, the Foshan Municipal Housing and Urban Rural Development Bureau, the Shunde District Housing and Urban Rural Development and Water Resources Bureau, Foshan Vanke Real Estate Co., Ltd., and Zhongtian Construction Group Co., Ltd. jointly hosted the Foshan Promotion Prefabricated Building Site Exchange Conference at Vanke Jinyu Academy in Foshan. Approximately 200 construction professionals attended the event, visiting the Jinyu Academy project site to observe and exchange ideas. Participants gained an in-depth understanding of Vanke’s “5+2” prefabricated building technology system and found it highly beneficial.
Vanke’s “5+2” Construction System
The Five Core Construction Methods
1. System Templates
The structural components are designed using molds and factory-processed templates, which enhances construction quality, efficiency, and precision while reducing energy consumption.
Example:
Craftsmanship:
- Prefabricated construction templates are standardized and produced uniformly in factories, offering lightweight yet high-strength materials.
- They are easy to transport and install, resulting in a 26% reduction in labor costs and a 16.67% increase in efficiency.
- Secondary structures can be constructed in one continuous process.
- Foshan Vanke currently employs the fourth-generation aluminum mold pull-tab system, which ensures more accurate, convenient, and efficient installation.
Cost Efficiency:
- The shortened construction period significantly reduces management expenses.
- Templates can be reused over 120 times, lowering overall costs.
Environmental Benefits:
- No construction waste is generated on site.
- Aluminum molds are made from renewable materials, satisfying environmental standards.
2. Full Concrete Exterior Walls
The exterior walls are cast continuously with concrete, eliminating traditional masonry and plastering steps. This approach reduces hollowing, cracking, and the risk of water leakage at the joints between walls and windows.
Example:
Craftsmanship:
- Exterior walls are cast in place using aluminum molds, which greatly improves precision compared to traditional masonry walls and eliminates the need for plastering.
- The fully cast-in-place walls have no masonry joints, effectively preventing leaks at their source.
Quality:
- Human error-related quality variations are minimized.
- Issues such as cracking, leakage, and hollowing common with traditional craftsmanship are significantly reduced.
Environmental Impact:
- Construction sites produce less sewage and waste.
3. Prefabricated Interior Partition Walls
Interior walls consist of lightweight partition strips that require no plastering, reducing common issues such as hollowing and cracking. This method speeds up construction, is less impacted by weather, lowers labor demands, and improves overall building quality.
Example:
Craftsmanship:
- Standardized factory production ensures high accuracy and improved quality.
- Internal walls require no plastering, eliminating hollowing, cracking, and wet work.
Cost:
- Easy installation reduces labor costs.
- The average construction time is shortened by over 40 days compared to traditional masonry and plastering.
Environmental Benefits:
- On-site pollution is significantly lower than with traditional masonry.
- Specialized adhesives connect wall panels, greatly reducing water and sand consumption.
4. Climbing Frames
The integrated intelligent lifting and protection platform offers a safer and more time-efficient alternative to traditional scaffolding dismantling.
Example:
Craftsmanship:
- Simple setup requiring only 4.5 floors, with reduced assembly and disassembly time.
Safety:
- Fully enclosed design ensures worker safety at all times.
Efficiency:
- Supports completion of various exterior facade tasks while climbing.
- Provides a fundamental guarantee for cross-cutting and efficiency improvements.
5. Interlaced Efficiency Improvement
The construction process is staggered and interspersed, effectively shortening the overall project timeline without compromising the duration of individual tasks. This approach maximizes resource and labor utilization through systematic construction control, enhancing both quality and efficiency.
Example:
- Internal insertion begins 45 days after the main structure starts, boosting efficiency through technical methods while maintaining safety and quality.
- During the main structural phase, interspersed work is also carried out in basements, gardens, and exterior facades to meet overall delivery schedules.
- The “5+2” process enables staggered construction flows, where lower floors undergo decoration while upper floors remain blank, reducing delivery time.
Two Major Prefabricated Applications
1. Prefabricated Decoration
Prefabricated decoration uses a standardized, integrated, and modular approach that combines equipment and pipelines in prefabricated residential applications. Current implementations include high-precision flooring with thin tile layers, dry internal insulation, integrated bathrooms and kitchens, pipeline separation, and hanging wall panels in public areas.
Example:
Craftsmanship:
- Separates structure from pipelines for easier secondary decoration.
- Uses integrated products to minimize manual labor, allowing complete installation with a single toolset.
Quality:
- Factory-produced components offer high precision and dimensions, delivering quality far superior to traditional craftsmanship.
- Integrated products replace wet work, reducing common issues such as hollowing, cracking, and leaks.
Environmental Impact:
- Prefabricated decoration reduces environmental pollution, providing homeowners with a safe and eco-friendly indoor environment.
2. Moderate Prefabrication
Moderate prefabrication involves prefabricated products designed to enhance quality, boost efficiency, reduce labor, and promote environmental friendliness, based on mature technology. Current applications include prefabricated stairs, composite panels, stair section wall panels, interior and exterior wall panels, and bearing platforms.
Example:
Craftsmanship:
- Factory processing and production of prefabricated components reduce labor and significantly cut construction costs.
Quality:
- Standardized components maintained in factories ensure consistent quality control.
Environmental Benefits:
- Construction sites generate substantially less waste, lowering pollution and supporting industry transformation and modernization.
Vanke’s experience with prefabricated construction has demonstrated that the five key components—full concrete exterior walls, prefabricated interior partitions, system templates, climbing frames, and interlaced efficiency improvements—form an effective “two lifts and two reductions” construction method. This approach has become the foundational requirement for Vanke Group’s prefabricated system. The concepts of “moderate prefabrication” and “prefabricated decoration” further enhance the system through standardized design, factory production, prefabricated construction, and information management. By 2021, Vanke Group planned to fully implement the “5+2” construction system across all its residential products.
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