Jilin Prefabricated Assembled Housing

Jilin prefabricated assembled housing represents the industrialization of construction and the prefabricated building industry. It involves the production and integration of components such as walls, floors, and roofs in a factory, which are then transported to the site for rapid assembly into a building system.

Technical Characteristics

• Addressing Climate Challenges: Jilin experiences long and severe winters. Prefabricated integrated housing enables uninterrupted construction during winter by producing components indoors, effectively addressing regional climate challenges.
• Insulation and Structure: High-performance insulation materials (such as sandwich insulation panels and polyurethane spraying) are used in conjunction with composite wall structures to meet energy efficiency standards in cold regions. The structural system primarily consists of light steel frames or concrete prefabricated frames, offering both seismic resistance and durability.
• Connection Nodes: Dry construction methods and high-strength bolt connections reduce on-site wet work and minimize environmental interference.
• BIM Technology Application: Widely applied during the design phase, BIM technology enables precise prefabrication of components and construction simulation, enhancing construction accuracy.

Advantages

• Resource Conservation and Environmental Protection: Prefabricated construction reduces water usage by 60%, wood consumption by 80%, land use by 20%, material waste by 20%, and construction waste by 80%. It also lowers overall energy consumption by over 70% while reducing construction dust and noise pollution.
• Improved Construction Quality: Factory production ensures consistent standards and uniform dimensions, reducing accuracy errors from the 'centimeter level' to the 'millimeter level'. The application of new technologies and materials significantly enhances sound insulation, thermal insulation, and seismic resistance, addressing common quality issues in traditional construction and extending building lifespan by 40-100%.
• Optimized Construction Period and Efficiency: Construction periods can be reduced by 40-70%, with labor requirements decreased by over 50%. For example, while a traditional 30-story high-rise residential building may take approximately three years to construct, a prefabricated building can be completed in as little as one year, with production continuing during winter, thus extending the effective construction period in northern regions.

Application Scenarios

• Prefabricated Container Houses: As a key promoted new construction technology in Jilin, the 'factory prefabrication + on-site assembly' model reduces construction periods to one-third of those for traditional houses. These houses support various floor plans, are equipped with independent bathrooms, centralized heating, and efficient exterior wall insulation, and have expanded from emergency housing to commercial, office, and tourism applications.
• Prefabricated Integrated Housing: Widely used in affordable housing, rural homestays, emergency shelters, and supporting facilities in industrial parks. Some counties have rapidly completed post-disaster reconstruction and rural revitalization projects through centralized module procurement, while reducing on-site pollution and contributing to the 'dual carbon' goals.

Policy Support

Jilin Province has promoted construction innovation through the 'Implementation Opinions on Vigorously Developing Prefabricated Construction,' aiming to increase the proportion of prefabricated buildings in new constructions. It has also initiated industrial base applications and provided support such as bid scoring bonuses and incentive policies for provincial-level demonstration projects.