4.1 The purpose of this guide is to provide information to gypsum product installers for the avoidance of hazards associated with the installation of gypsum products adjacent to, or surrounding, electric heating components and conductors; and to avoid damage to gypsum products when used in conjunction with a concealed radiant heating system.

4.2 The information given in this guide is applicable to repair of existing cable heating systems and to new construction of radiant heating systems constructed from flexible radiant heating panels.

1.1 This guide² provides information for trades installing gypsum products in conjunction with a concealed radiant ceiling heating system constructed from thin sheet flexible radiant heating panels, and for the installation of gypsum products after repair of existing concealed radiant ceiling heating systems constructed from heating cable or thin sheet flexible radiant heating panels.

1.2 The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This guide does not purport to address any aspect of concealed radiant heating system design or performance, and is limited to the proper installation of gypsum products specified for use in a concealed radiant ceiling heating system.

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 and health practices and determine the applicability of regulatory requirements prior to use.

1.5 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes shall not be considered as requirements of the standard.