Design Drawings of Prefabricated Houses
On March 7, 2024, the Canadian government unveiled the first batch of 50 modular prefabricated house design drawings, covering various types and scales, and demonstrating the flexibility and adaptability of modular structures.
I. Design Types and Functional Positioning
The first batch of 50 design drawings includes types such as townhouses, four-unit villas, six-unit villas, and accessory dwelling units (ADUs). Townhouses are suitable for medium-density communities, reducing land occupation through shared walls. Four-unit and six-unit villas achieve multi-household shared infrastructure through modular assembly, lowering construction costs. ADUs, such as independent backyard houses, can be flexibly added beside existing residences to meet the needs of multi-generational living or rental. Additionally, the designs include mini standalone houses (493 square feet) and three-bedroom six-household residences (739 square feet), covering scenarios from single occupancy to multi-household sharing, adapting to different family structures and regional needs.
II. Core Advantages of Modular Structures
The designs utilize standardized modular units, enabling rapid assembly through factory-prefabricated components such as walls, floors, and roofs. For example, Jean Prouvé's design of detachable military barracks and prefabricated houses features modules that can be assembled like 'LEGO', significantly shortening on-site construction periods (reduced by 50%-70% compared to traditional buildings). Modular structures also support flexible disassembly and reassembly, allowing military barracks to be quickly relocated to different sites and residential modules to adjust room quantities based on family needs, extending the building's lifespan.
III. Regional Adaptability Design
House scale and functionality need to be adjusted according to the regulations of the approved province or region. For instance, in areas with limited land resources, the 493-square-foot mini standalone houses are prioritized, meeting basic living needs through compact layouts. In densely populated areas, six-unit villas and ADUs enhance land utilization. Furthermore, modular design allows for adjustments in building materials based on climate conditions (e.g., higher insulation performance wall materials in northern Canada), ensuring energy efficiency and居住舒适性 (living comfort, here translated as is to keep the original Chinese term's context but in English it would typically be 'residential comfort' or simply 'comfort'; for precision, 'residential comfort' is used here).
IV. Expanded Application Scenarios
In addition to civilian residences, modular prefabricated houses can also be applied to emergency housing, temporary office spaces, and tourism facilities. For example, detachable military barrack designs can be rapidly deployed as temporary shelters in disaster relief, while prefabricated residential modules can meet commercial needs such as hotels and bed-and-breakfasts through customized interiors, demonstrating the designs' versatility and cost-effectiveness.
