1.1 本规程涵盖了PB级外部绝缘和饰面系统（EIF）和带排水的EIF的现场或预制应用的最低要求和程序。PB类EIF是应用于绝缘板上的系统，其中底漆范围不小于 1. / 16 在里面（1.6毫米）至 1. / 4. 在里面（6.4 mm），取决于封装在底漆中的非金属钢筋网层的数量（见规范） E2568 ). 然后，用不同纹理和颜色的不同厚度的面漆覆盖底涂层。具有排水功能的EIF提供了一种排出偶然水分的机制 1.2 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.3 本惯例的文本参考了提供解释材料的注释和脚注。这些注释和脚注（不包括表和图中的注释和脚注）不应视为本标准的要求。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.5 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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 本规程规定了PB级EIF和带排水的EIF的最低应用要求（见规范 E2568 ). 材料、混合物和细节的要求应包含在项目计划和规范中。请参阅指南 E1825 用于指导。

1.1 This practice covers the minimum requirements and procedures for field or prefabricated application of Class PB Exterior Insulation and Finish Systems (EIFS) and EIFS with Drainage. Class PB EIFS are systems applied over insulation board, in which the base coat ranges from not less than 1 / 16 in. (1.6 mm) to 1 / 4 in. (6.4 mm) in dry thickness, depending upon the number of nonmetallic reinforcing mesh layers encapsulated in the base coat (see Specification E2568 ). The base coat is then covered with a finish coat of varying thickness in a variety of textures and colors. EIFS with Drainage provides a mechanism to drain incidental moisture 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 The text of this practice references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as a requirement of the standard. 1.4 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. 1.5 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 ====== 4.1 This practice provides minimum requirements for the application of Class PB EIFS and EIFS with Drainage (see Specification E2568 ). The requirements for materials, mixtures, and details shall be contained in the project plans and specifications. See Guide E1825 for guidance.