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C 1224的要求。 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-磅为单位给出的值应视为标准值。括号中的国际单位仅供参考。 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和健康实践，并确定监管限制的适用性。 ====意义和用途====== 本规程承认反射绝缘的有效性、安全性和耐久性不仅取决于绝缘材料的质量，还取决于其正确安装。 保温层安装不当会降低其热效率，引发火灾风险和其他不安全条件，并促进其安装结构的劣化。安装不当可能导致的特定危险包括以下原因引起的火灾:( 1. )嵌入式照明灯具中的热量积聚( 2. )电气接线组件的劣化或故障，以及因过电流保护装置与接线不匹配而导致的热量积聚；或( 3. )木材结构的劣化和因水分积聚而导致的油漆失效。 本规程为安全有效地安装反射绝缘提供了建议。现有建筑物的实际情况可能会有很大差异，在某些情况下，应额外小心，以确保安全有效的安装。 本实践提出了一般性的要求，并认为是实用的。 这些建议不作为具体建议。用户应咨询制造商以获得推荐应用。

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 C 1224. 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 given in inch-pound units are to be regarded as standard. The SI units in parentheses are for information only. 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 and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== This practice recognizes that effectiveness, safety, and durability of reflective insulation depends not only on the quality of the insulating materials, but also on their proper installation. Improper installation of insulation can reduce its thermal effectiveness, cause fire risks and other unsafe conditions, and promote deterioration of the structure in which it is installed. Specific hazards that can result from improper installation include fires caused by ( 1 ) heat build-up in recessed lighting fixtures, ( 2 ) deterioration or failure of electrical wiring components, and heat build-up resulting from overcurrent protection devices incorrectly matched to wiring; or ( 3 ) deterioration in wood structures and paint failure due to moisture accumulation. This practice provides recommendations for the installation of reflective insulation in a safe and effective manner. Actual conditions in existing buildings may vary greatly and in some cases additional care should be taken to ensure safe and effective installation. This practice presents requirements that are general in nature and considered practical. They are not intended as specific recommendations. The user should consult manufacturer for recommended applications.