1.1 该测试方法涵盖了评估许多不连续、透气、陡坡屋顶产品的抗风性的程序，该抗风性由产品的刚性（有或没有密封剂的贡献以帮助压紧凸片的前缘）或机械互锁（有或没有密封剂的贡献以帮助压紧凸片的前缘）或其任何组合产生。根据制造商的说明将产品应用于测试面板，并以2:12(17%)的斜率或这些说明允许的最低斜率进行测试。 1.2 该方法使用风扇诱导程序评估风阻，该程序将气流输送穿过测试样本的暴露表面。该方法不测量结构性能，并且不提供抗隆起性的测量。因此，该方法不适用于连续的、不可渗透的屋顶系统或覆盖物（例如膜或机械接缝的金属屋顶板）。 1.3 该测试方法以前名为“沥青瓦的抗风性（风扇诱导法）”，但经过修订，承认该方法适用于许多其他陡坡屋面产品，并已被几个测试和认证实验室用于评估这些产品的抗风性多年。属于本试验方法范围的陡坡屋面产品，除沥青瓦外，还有聚合物基瓦、纤维水泥瓦、混凝土瓦、粘土瓦、金属瓦和光伏瓦。 1.4 本试验方法仅限于应用于最大暴露量为410 mm[16 in.]. 1.5 以SI单位或英寸-磅单位表示的值应单独视为标准值。每个系统中陈述的值可能不完全等同；因此，每个系统应独立使用。合并两个系统的值可能导致不符合标准。 1.6 本标准并不旨在解决与其使用相关的所有安全性问题（如果有）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践并确定法规限制的适用性。 1.7 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。======意义和用途====== 5.1 大多数通过该测试证明了抗风能力的陡坡屋面产品在使用中也表现良好。自然风条件在强度、持续时间和湍流方面有所不同；这些条件超出了本测试的模拟范围。该测试的结果与使用中经历的风速没有直接关系，并且在该测试方法中没有对建筑高度、建筑暴露类别或建筑重要性因素进行调整。 5.2 许多因素影响陡坡屋面产品在现场的抗风能力；例如，温度、时间、屋顶坡度、灰尘和碎片的污染，以及紧固件（无论是适当的还是不适当的）错位或错位、过度或不足-驱动和密封剂附着力（如果使用并正常运行）。解决所有这些影响超出了本测试方法的范围。本试验方法旨在评估范围中描述的产品的抗风性能，当代表性样品根据制造商的说明应用于试验面板并在试验前按照规定进行调节时。

1.1 This test method covers the procedure for evaluating the wind resistance of many discontinuous, air permeable, steep slope roofing products that results from the product's rigidity, with or without contribution from sealant to help hold down the leading edge of the tabs, or mechanical interlocking, with or without contribution from sealant to help hold down the leading edge of the tabs, or any combination thereof. The products are applied to a test panel in accordance with the manufacturer’s instructions and tested at a 2:12 (17 %) slope, or at the lowest slope permitted by those instructions. 1.2 This method evaluates wind resistance using a fan-induced procedure, delivering a stream of air across the exposed surface of the test specimens. This method does not measure structural performance, and does not provide a measure of uplift resistance. Consequently, this method is not applicable to continuous, non-permeable roof systems or coverings (such as membranes or mechanically seamed metal roof panels). 1.3 This test method was formerly titled “Wind Resistance of Asphalt Shingles (Fan-Induced Method)” but was revised to acknowledge that the method is applicable to many other steep slope roofing products and has been used to evaluate the wind resistance of those products for many years by several testing and certification laboratories. Steep slope roofing products that fall under the scope of this test method, in addition to asphalt shingles, are polymer-based shingles, fiber-cement shingles, concrete tiles, clay tiles, metal shingles, and photovoltaic shingles. 1.4 This test method is limited to steep slope roofing product applied with a maximum exposure of 410 mm [16 in.]. 1.5 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard. 1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. ====== Significance And Use ====== 5.1 Most steep slope roofing products that have demonstrated wind resistance by this test have also performed well in use. Natural wind conditions differ with respect to intensity, duration, and turbulence; these conditions are beyond the means of this test to simulate. The results of this test do not directly correlate to wind speeds experienced in service, and no accommodation is made in this test method for building height, building exposure category, or building importance factor. 5.2 Many factors influence the wind resistance of a steep slope roofing product in the field; for example, temperature, time, roof slope, contamination by dirt and debris, and fasteners, both appropriate and inappropriate, that are misaligned or misplaced, or over- or under-driven, and sealant adhesion, if used and functioning. It is beyond the scope of this test method to address all of these influences. This test method is designed to evaluate the wind resistance of products as described in the scope when representative samples are applied to test panels in accordance with the manufacturer’s instructions and conditioned as specified before testing.