1.1 本规程供建筑施工中使用的反射隔热材料的设计者、规范者和安装者使用。该范围仅限于有关使用和安装由一个或多个表面组成的隔热层的建议，该隔热层的发射率为0.1或更小，例如未安装或安装在基板上的金属箔或金属沉积物，面向封闭的空气空间。本规程涵盖的反射绝缘必须符合规范要求 C1224 . 1.2 本规程涵盖了从安装前检查到安装后程序的安装过程。它不包括绝缘材料的生产。 1.3 本规程无意取代制造商的安装说明，但应与此类说明一起使用。 这种做法无意取代地方、州或联邦法规。 1.4 本规程假设安装人员对安装隔热材料所需的适用规范和法规、安全规程、工具、设备和方法具有良好的工作知识。它还假设安装人员了解影响绝缘安装的施工基础。 1.5 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。 1.6 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。 1.7 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》中确立的国际公认标准化原则制定的。 ====意义和用途====== 4.1 本规程认识到反射绝缘的有效性、安全性和耐久性不仅取决于绝缘材料的质量，还取决于正确安装。 4.2 当隔热层安装不当时，可能会降低热效率、火灾风险和结构劣化。不当安装的具体潜在危险包括以下原因引起的火灾:( 1. )嵌入式照明设备中的热量积聚，以及( 2. )木材结构的劣化和因水分积聚而导致的油漆失效。 4.3 本规程规定了以安全有效的方式安装反射绝缘的程序。现有建筑物的实际情况差别很大，在某些情况下，必须格外小心，以确保安全有效的安装。 4.4 本实践提出了一般性和实用性要求。它们不是特定的安装说明。用户应就具体应用/安装咨询制造商。

1.1 This practice has been prepared for use by the designer, specifier, and installer of reflective insulation for use in building construction. The scope is limited to recommendations relative to the use and installation of thermal insulation consisting of one or more surfaces, having an emittance of 0.1 or less such as metallic foil or metallic deposits unmounted or mounted on substrates and facing enclosed air spaces. The reflective insulation covered by this practice must meet the requirements of Specification C1224 . 1.2 This practice covers the installation process from pre-installation inspection through post-installation procedure. It does not cover the production of the insulation materials. 1.3 This practice is not intended to replace the manufacturer's installation instructions, but shall be used in conjunction with such instructions. This practice is not intended to supercede local, state, or federal codes. 1.4 This practice assumes that the installer possesses a good working knowledge of the applicable codes and regulations, safety practices, tools, equipment, and methods necessary for the installation of thermal insulation materials. It also assumes that the installer understands the fundamentals of construction that affect the installation of insulation. 1.5 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. 1.6 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 ====== 4.1 This practice recognizes that effectiveness, safety, and durability of reflective insulation depends not only on the quality of the insulating materials, but also on proper installation. 4.2 There is potential for reduced thermal effectiveness, fire risks and structural deterioration when the insulation is improperly installed. Specific potential hazards from improper installation include fires caused by ( 1 ) heat build-up in recessed lighting fixtures, and ( 2 ) deterioration in wood structures and paint failure due to moisture accumulation. 4.3 This practice provides procedures for the installation of reflective insulation in a safe and effective manner. Actual conditions in existing buildings vary greatly and in some cases additional care must be taken to ensure safe and effective installation. 4.4 This practice presents requirements that are general in nature and practical. They are not intended as specific installation instructions. The user shall consult the manufacturer for specific applications/installations.