Heilongjiang Prefabricated Assembled House
The Heilongjiang prefabricated assembled house is an efficient and energy-saving building form developed to adapt to the severe cold climate, featuring modular design, rapid construction, and excellent thermal insulation performance.
Structure and Materials
The Heilongjiang prefabricated assembled house adopts a main structure composed of either a steel frame with prefabricated concrete wall panels or a light steel skeleton with composite insulation panels. The walls are filled with rock wool or polyurethane to meet the energy-saving standards for severe cold regions (K-value ≤ 0.3), effectively withstanding extreme low temperatures of minus 30°C. Some enterprises utilize locally abundant wood processing by-products (such as straw boards) to produce interior partition walls, reducing costs while meeting environmental requirements.
Construction Characteristics
House modules are completed in the factory with door and window installation, pipeline embedding, and interior wall finishes. On-site, they are fixed through bolt connections and grouting, significantly reducing wet work. The factory is equipped with a -30°C low-temperature curing chamber to ensure the strength of components produced in winter. Quality inspection involves 3D laser scanning and leakage detection, with components shipped with QR codes for traceability. On-site assembly time is only one-fifth that of traditional buildings, with construction periods shortened by over 60%. The entire process is dry, breaking through winter construction limitations (only foundation work needs to avoid frozen soil).
Design and Applications
Houses can be designed as single-story or multi-story structures, with modular integration of balconies and terraces. The interior space is flexibly divided to meet various purposes such as residential, office, and temporary facilities. The pre-embedded water and electricity pipeline system ensures safe and convenient use, suitable for scenarios such as civil residences, scenic area service facilities, temporary command posts, post-disaster reconstruction, and county-level industrial plants. It provides rapid and sustainable solutions, especially for the Greater Khingan Mountains forest area, border outposts, and tourist resorts.
Advantages and Policies
By optimizing thermal insulation nodes and airtight design, factories reduce house energy consumption by 40% compared to traditional buildings. The Heilongjiang Provincial Housing and Urban-Rural Development Department promotes policy implementation through special guidance and assistance, aiding the transformation and upgrading of the construction industry. Leading enterprises such as North Green Building Technology Co., Ltd. possess intelligent production lines and national-level laboratories, with an annual production capacity of 500,000 square meters. Their independently developed "Cold Region Special Thermal Insulation Wall System" has passed national certification, with a service system covering full-chain standardized management.
Demonstration Projects
The eighth batch of prefabricated building demonstration projects in Heilongjiang Province includes the Harbin Huihong Jialeju Project (Buildings G2#, G6#, G7#, G8#, etc.), providing replicable practical experience for the industry.
