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Homepage>ASTM Standards>ASTM C0755-20 - Standard Practice for Selection of Water Vapor Retarders for Thermal Insulation
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Released: 2020-03-27

ASTM C0755-20

Standard Practice for Selection of Water Vapor Retarders for Thermal Insulation

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Language:English
Released:2020-03-27
Pages:12
Standards number:ASTM C0755-20
Standard number:C0755-20
Released:01.03.2020
Status:Active
Pages:12
Section:04.06
Keywords:design; materials; selection; thermal insulation; vapor retarders; water vapor retarders ;
DESCRIPTION

1.1 This practice outlines factors to be considered, describes design principles and procedures for water 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 service temperature range from −40 to +150°F (−40 to +66°C). Emphasis is placed on the control of moisture penetration by choice of the most suitable components of the system.

1.2 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.

1.3 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.

1.4 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.