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ASTM C728-17a

Current Revision

Standard Specification for Perlite Thermal Insulation Board

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1.1 This specification covers the composition and physical properties for perlite thermal insulation board used principally above structural roof decks and as a base for built-up, modified, and elastomeric membrane roofing in building construction.

1.2 When adopted by an authority having jurisdiction, codes that address fire properties in many applications regulate the use of the thermal insulation materials covered by this specification. Fire properties are controlled by job, project, or other specifications where codes or government regulations do not apply.

1.3 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.

1.4 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 limitations prior to use.

1.5 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.


This specification covers the composition and physical properties for perlite thermal insulation board used principally above structural roof decks and as a base for built-up, modified, and elastomeric membrane roofing in building construction. Perlite thermal insulation board is classified as follows: type 1 - roof insulation board, and type 2 - roof cover/recover board. The basic material of the insulation board shall be perlite expanded by the application of heat to form glassy, cellular aggregates. The finished board may be either single-ply or multiple-ply. Perlite thermal insulation boards shall conform to the thermal resistance prescribed. The thermal resistance, compressive strength, tensile strength, flame speed classification, and water absorption shall be tested to meet the requirements prescribed.


SDO ASTM: ASTM International
Document Number C728
Publication Date Sept. 1, 2017
Language en - English
Page Count 3
Revision Level 17a
Supercedes
Committee C16.22
Publish Date Document Id Type View
Sept. 1, 2017 C0728-17A Revision
March 1, 2017 C0728-17 Revision
March 1, 2016 C0728-16 Revision
March 1, 2015 C0728-15 Revision
May 1, 2013 C0728-13 Revision
May 1, 2005 C0728-05 Revision
May 10, 1997 C0728-97E01 Revision
May 10, 1997 C0728-97 Revision
Not Available C0728-89A Revision
March 1, 2022 C0728-17AR22 Reaffirmation
March 1, 2010 C0728-05R10 Reaffirmation