1.1''This practice covers the basic requirements for and the methods of installation of rigid vinyl siding, soffits, and accessories on the exterior wall and soffit areas of buildings. In all applications, refer also to the specific manufacturer's installation instructions and the requirements of applicable building codes.

1.2''This practice covers aspects of installation relating to effectiveness and durability in service.

1.3''The various application systems are located in the following sections of this practice:

Substrate, Surface Preparation	Section 8
Application of Horizontal Siding	Section 9
Application of Vertical Siding	Section 10
Application of Soffits and Fascia	Section 11
Special Details	Section 12

1.4''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.

1.5''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.

Note 1:''There is no known ISO equivalent to this standard.

1.6''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.