Development of Wind Uplift Standard For Roof Edge Systems and Technologies

屋顶边缘系统包括构件及其与屋顶部件的接口。技术包括设计和测试程序。本提案涉及屋顶边缘系统和技术，缩写为：REST。REST是屋顶风效应的第一道防线。在加拿大，组合屋顶（BUR）是低坡度屋顶中最常用的组件。从传统的BUR到机械连接屋顶系统（MARS）和粘合剂应用屋顶系统（阿尔斯）有了显著的发展和变化。这些创新有助于降低劳动强度，延长寒冷天气条件下的屋顶施工过程，并控制屋顶组件中的水分迁移问题。然而，目前，没有评估标准或设计程序可用于加拿大屋顶社区量化的REST的动态卷扬阻力。对最近的飓风（Charley，Katrina和IKE）的调查发现了REST的主要失败（RICOWI 2006，2007，2010和Baskaraneta 12007和Graham，2004）。目前的建议是对现有CRDPJ 305819的扩展，以满足REST的研究需求。本提案的目的是开发测试方法、数值模型和设计工具，以造福于屋顶行业。这是一个私人、联邦和大学的合作项目。在这样的情况下，研究生将在大学获得理论知识;在独特的NRC实验室设施中进行实验，并通过与工业合作伙伴的互动获得实践经验。

Roof edge systems include components and its interface with the roof assembly. Technologies cover designt ools and test procedures.This proposal addresses Roof Edge Systems and Technologies and abbreviated as:REST. REST is the first line of defence for wind effects on roofs. In Canada, Built-Up Roofs (BUR) is the most commonly used assemblies in low-slope roofs. There is significant growth and changes from the conventional BUR to Mechanically Attached Roofing Sytems (MARS) and Adhesive Applied Roofing Systems(AARS).These innovations contributed to the reduction of labour intensity, extended roof construction processin cold weather conditions and controlled moisture migration issues in the roof assembly. However, at present, no evaluation standards or desing procedures are available for the Canadian Roofing community to quantify the dynamic windup lift resistance of the REST. Investigation from the recent hurricanes (Charley, Katrina and IKE) identified major REST's failures (RICOWI2006,2007,2010 and Baskaraneta12007andGraham,2004).The present proposal is an extension of the existing CRDPJ305819 to address the research needs of the REST. The aim of the present proposal is to develop test methods,numerical models and design tools for the benefit of the roofing community. This is a private, federal and university partnership project. In such,the graduate students will acquire the oretical knowledge at the university; perform experiments at the unique NRC lab facilities and gain practical experiences by interacting with industrial partners.