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.

ACQBUILD是北美领先的场外房屋建筑商之一。它目前在埃德蒙顿的工厂生产镶板地板、镶板墙壁和容积式屋顶模块。然后将这些面板和模块运输到施工现场并连接在一起以形成最终结构。与传统的建筑方法相比，工厂预制提供了更快，更好的房屋建设质量。作为行业的领导者，ACQBUILD不断努力改进建筑技术，使高品质的住房更实惠。ACQBULT的初步研究表明，如果用镶板单元取代模块化屋顶结构，可以进一步提高建筑效率，降低其住房系统的生产成本。这是因为体积式屋顶模块在工厂中需要相当大的空间来生产，并且由于它们在运输车辆中占据的体积而需要相对高的运输成本。此外，由于轻型金属板屋顶桁架的专门设计和制造工艺，用于制造屋顶模数的屋顶桁架从桁架制造商处购买，这增加了住房包装的成本。然而，需要进一步研究，以设计这种新的镶板屋顶系统，以最大限度地节省成本的潜力，并确保新系统符合建筑法规的要求，因为它将偏离传统的建筑方法，这是由国家和省建筑法规承认，由于其长期为加拿大人提供安全和负担得起的住房。建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架桁架系统。屋面板系统的设计将考虑ACQBULT预制生产线的制造限制、现场可建性、运输限制和保温材料的放置。所开发的设计将在一个实际的住宅建设项目中实施，以评估其工厂制造效率和现场可建性。