1.1 本指南旨在为植物屋顶系统内合适防水膜的选择提供指导。本指南提供了各种选项，用于在安装期间和安装完成后以及在安装植物组件之前审查膜安装。本指南适用于需要或不需要紫外线防护的膜。在本指南中，假设支撑结构和屋顶板在机械和结构上都良好，并将承受植物屋顶系统的重量，包括薄膜、绝缘和其他屋顶/防水部件，包括与植物层相关的所有部件以及所需的设计荷载。最好在膜水平处倾斜排水，并尽可能包括在内。在现有建筑物上提供替换或重新覆盖的植被屋顶系统可能需要加固支撑结构，以便其能够安全支撑植被屋顶系统的额外重量，并提供建筑规范要求的最小活载能力。 1.2 与系统植物部分相关的设计标准不在本指南的范围内。请参阅指南 E2777年 . 1.3 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和健康实践，并确定监管限制的适用性。 1.4 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 本指南提供了选择防水膜以创建植物（绿色）屋顶防水系统的一般信息、程序和指南。 4.2 本指南并非包罗万象；本指南旨在补充制造商、ASTM标准和建筑规范要求的详细说明。

1.1 The purpose of this guide is to provide guidance in the selection of a suitable waterproofing membrane within a vegetative roof system. The guide offers various options for reviewing the membrane installation during and upon completion of the installation and prior to the vegetative components being installed. This guide applies to membranes that do or do not require UV protection. For the purpose of this guide, the supporting structure and roof deck are assumed to be mechanically and structurally sound and will accept the weight of the vegetative roof system including the membrane, insulation, and other roofing/waterproofing components including all components related to the vegetative layers as well as the required design loads. Slope to drain at the membrane level is preferred and should be included where possible. Providing a replacement or a re-cover vegetative roofing system on an existing building may require that the support structure be reinforced so that it can safely support the additional weight of the vegetative roof system and also provide the minimum live load capacity required by the building code. 1.2 Design criteria associated with the vegetative portions of the system are beyond the scope of this guide. Please refer to Guide E2777 . 1.3 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 and health practices and determine the applicability of regulatory limitations prior to use. 1.4 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 guide provides the general information, procedures, and guidelines for the selection of the waterproofing membrane to create a waterproofing system for a Vegetative (Green) roof. 4.2 This guide is not all inclusive; this guide is intended to supplement detailed instructions from manufacturers, ASTM Standards, and building code requirements.