新能源法规规定在钢钉外墙设计中增加使用连续隔热（ci）。2009年国际节能规范（IECC）和美国采暖、制冷和空调工程师协会（ASHRAE）90.1-2007对钢钉墙进行了重大绝缘变更，尤其是通过钢钉进行的热短路。本文着重于热模拟和实验测试相关性，以及与建筑材料和机械连接技术相关的各种墙体的性能评估。建筑墙体的热模拟面临许多挑战，包括框架空腔和边界条件的正确表示。 为了更好地应对行业挑战，更好地理解二维分析工具的模拟，开发了一种三维有限元分析热建模方法。本文概述了三面墙防护热箱试验和有限元建模的结果；常规建筑墙体，以及带有或不带有喷涂聚氨酯泡沫（SPF）的连续隔热墙。分析结果表明，与玻璃纤维隔热的典型石膏墙相比，SPF填充空腔的连续隔热性能显著提高。此外，我们还讨论了在受控实验室环境中对绝缘、空气密封和耐候系统的评估，以提供产品在现场如何共同工作的真实数据。 引文:美国丹佛市ASHRAE会议论文

New energy codes prescriptively require the increased use continuous insulation (ci) in steel stud exterior wall designs. The 2009International Energy Conservation Code (IECC) and American Society of Heating, Refrigerating and Air-Conditioning Engineers(ASHRAE) 90.1-2007 contains significant insulation changes for steel stud walls, especially regarding thermal shorts via steel studs. This paperfocuses on thermal modeling and experimental test correlations, as well as the performance evaluation of various walls related to building materialsand mechanical attachment techniques. There are many challenges related to the thermal modeling of building walls, including the properrepresentation of frame cavity and boundary condition. To better address industry challenges, and to develop a better understanding of thelimitations of 2D analysis tools, a 3D finite element analysis thermal modeling approach was developed. This paper outlines findings fromguarded hot box tests, and FEA modeling, of three walls; a conventional building wall, and a continuous insulation wall with and without spraypolyurethane foam (SPF). The analysis results show significantly increased performance of continuous insulation with SPF filled cavity vs. typicalgypsum wall with fiberglass insulation. Additionally, we discuss the evaluation of insulation, air sealing and weatherization systems in a controlledlab environment, in order to provide real-world data of how the products function together in the field.