1. Scope
1.1 This practice outlines factors to be considered, describes design principles and procedures for vapor retarder selection, and defines water vapor transmission values appropriate for established criteria. It is intended for the guidance of design engineers in preparing vapor retarder application specifications for control of water vapor flow through thermal insulation. It covers commercial and residential building construction and industrial applications in the temperature range from -40 to +80¡ãF (-40 to +27¡ãC) within the structure. Emphasis is placed on the control of moisture penetration by choice of the most suitable components of the system.
1.2 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.
2. Referenced Documents
D828 Test Method for Tensile Properties of Paper and Paperboard Using Constant-Rate-of-Elongation Apparatus
E84 Test Method for Surface Burning Characteristics of Building Materials
E96 Test Methods for Water Vapor Transmission of Materials
F372 Test Method for Water Vapor Rate Transmission of Flexible Barrier Materials Using an Infrared Detection Technique
T803, Puncture Test of Containerboard |