Development of panelized roof system for single-family houses**

开发单户住宅的板式屋顶系统**

• 批准号: 536489-2018
• 负责人: Chui, YingHei
• 金额: $ 1.82万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=647710
• 关键词: Development; panelized; roof; system; single

ACQBUILT is one of the leading off-site home builders in North America. It is currently producing panelized floors, panelized walls and volumetric roof modules at its factory in Edmonton. These panels and modules are then transported to the construction site and connected together to form the final structure. Prefabrication in the factory offers faster and better quality house construction compared with the traditional stick-built approach. As a leader in the industry, ACQBUILT is continuously striving for improved construction technologies and making high quality housing more affordable. ACQBUILT's preliminary research has shown that further improvement in construction efficiency and reduction in production costs for its housing systems can be achieved if the modular roof structure is replaced by panelized units. This is because the volumetric roof modules require considerable space in the factory to produce and a relatively high transportation cost due to the volume they occupy in a transportation vehicle. Furthermore, the roof trusses used in fabricating the roof modulus are purchased from truss fabricators due to the specialized design and fabrication processes of light metal plate roof trusses, which adds to the cost of the housing package. However, further research is required to engineer this new panelized roof system in order to maximize its cost saving potential and to ensure that the new system meets the building code requirements as it would deviate from the traditional construction method, which is recognized by the national and provincial building codes due to its long history of providing safe and affordable housing for Canadians. The main objective of the proposed project is to develop design of panelized roof system to replace the traditional truss-based wood frame truss system. The design of the panelized roof system will take into consideration the manufacturing limitations of ACQBUILT prefabrication production line, site buildability, transportation limitations and placement of insulation materials. The developed design will be implemented in an actual house construction project to evaluate its factory fabrication efficiency and site buildability.

Acquilt是北美领先的现场房屋建筑商之一。它目前正在其位于埃德蒙顿的工厂生产镶板的地板，镶板的墙壁和容积的屋顶模块。然后将这些面板和模块运输到建筑工地，并将其连接在一起以形成最终结构。与传统的棍棒制造方法相比，工厂的预制提供了更快，更优质的房屋建设。作为该行业的领导者，Acqubuilt正在不断努力改善建筑技术，并使高质量的住房更实惠。 Acquilt的初步研究表明，如果模块化屋顶结构被套房式单元取代，则可以实现其住房系统的建筑效率和降低其住房系统的生产成本的进一步提高。这是因为体积的屋顶模块需要在工厂生产大量空间，并且由于它们在运输车辆中占据的数量而导致的运输成本相对较高。此外，由于轻质金属板屋顶桁架的专门设计和制造工艺，用于制造屋顶模量的屋顶桁架是从桁架制造商那里购买的，这增加了住房包装的成本。但是，需要进一步的研究来设计这种新的镶板屋顶系统，以最大程度地发挥其成本节省的潜力，并确保新系统符合建筑法规的要求，因为它会偏离传统的建筑方法，因为该方法由国家和省级建筑法规所识别，因为其为加拿大人提供安全和负担的住房的悠久历史。拟议项目的主要目的是开发镶板屋顶系统的设计，以取代传统的基于桁架的木框桁架系统。镶板屋顶系统的设计将考虑到ACQ构建预制生产线，现场可建造性，运输局限性和绝缘材料放置的制造局限性。开发的设计将在实际的房屋建设项目中实施，以评估其工厂的制造效率和现场可建造性。