ASTM C728-15

Standard Specification for Perlite Thermal Insulation Board

ABSTRACT
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.
SCOPE
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.

General Information

• Status: Historical
• Publication Date: 28-Feb-2015
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.22 - Organic and Nonhomogeneous Inorganic Thermal Insulations

Relations

• Replaces: ASTM C728-13 - Standard Specification for Perlite Thermal Insulation Board
• Effective Date: 01-Mar-2015
• Replaced By: ASTM C728-16 - Standard Specification for Perlite Thermal Insulation Board
• Effective Date: 01-Mar-2016
• Referred By: ASTM C1558-19 - Standard Guide for Development of Standard Data Records for Computerization of Thermal Transmission Test Data for Thermal Insulation
• Effective Date: 01-Mar-2015
• Referred By: ASTM C1289-23 - Standard Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board
• Effective Date: 01-Mar-2015

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:C728 −15
StandardSpecification for
1
Perlite Thermal Insulation Board
This standard is issued under the fixed designation C728; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope the Guarded-Hot-Plate Apparatus
C203 Test Methods for Breaking Load and Flexural Proper-
1.1 This specification covers the composition and physical
ties of Block-Type Thermal Insulation
properties for perlite thermal insulation board used principally
C209 Test Methods for Cellulosic Fiber Insulating Board
abovestructuralroofdecksandasabaseforbuilt-up,modified,
C390 Practice for Sampling and Acceptance of Thermal
and elastomeric membrane roofing in building construction.
Insulation Lots
1.2 Whenadoptedbyanauthorityhavingjurisdiction,codes
C518 Test Method for Steady-State Thermal Transmission
that address fire properties in many applications regulate the
Properties by Means of the Heat Flow Meter Apparatus
use of the thermal insulation materials covered by this speci-
C1289 Specification for Faced Rigid Cellular Polyisocyanu-
fication. Fire properties are controlled by job, project, or other
rate Thermal Insulation Board
specifications where codes or government regulations do not
E84 Test Method for Surface Burning Characteristics of
apply.
Building Materials
1.3 The values stated in inch-pound units are to be regarded
C1763 Test Method for Water Absorption by Immersion of
as standard. The values given in parentheses are mathematical Thermal Insulation Materials
conversions to SI units that are provided for information only
and are not considered standard.
3. Terminology
1.4 This standard does not purport to address all of the
3.1 For complete descriptions of terms used in this
safety concerns, if any, associated with its use. It is the
specification, refer to Terminology C168.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4. Classification
bility of regulatory limitations prior to use.
4.1 Perlite thermal insulation board is classified as follows:
2. Referenced Documents
4.1.1 Type 1, Roof Insulation Board—A perlite based roof
insulation cover board.
2.1 The following standards, of the issue in effect on the
date of material purchase, form a part of this specification to 4.1.2 Type 2, Roof Cover or Recover Board—This is used
the extent specified herein: primarily as a field-applied cover board over other roof
2 insulations or in reroofing applications. The product is also
2.2 ASTM Standards:
available to manufacturers of laminated rigid foam products as
C165 Test Method for Measuring Compressive Properties of
specified in Specification C1289, Type III.
Thermal Insulations
4.1.3 Type 3, Roof Cover or Recover Board—Aperlitebased
C168 Terminology Relating to Thermal Insulation
cover board that is field applied over other roof insulations or
C177 Test Method for Steady-State Heat Flux Measure-
in re-roofing and recover applications. The product is also
ments and Thermal Transmission Properties by Means of
available to manufacturers of laminated rigid foam products as
specified in Specification C1289, Type III.
1
This specification is under the jurisdiction of ASTM Committee C16 on
Thermal Insulation and is the direct responsibility of Subcommittee C16.22 on
5. Ordering Information
Organic and Nonhomogeneous Inorganic Thermal Insulations.
Current edition approved March 1, 2015. Published June 2015. Originally 5.1 Orders shall at least include the following information:
approved in 1972. Last previous edition approved in 2013 as C728–13. DOI:
5.1.1 Title and designation Specification C728.
10.1520/C0728-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 5.1.2 Product name, nominal thickness and dimensions.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
5.1.3 Quantity of material ordered.
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 5.1.4 Manufacturer’s name, address, and telephone number.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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C728−15
6. Materials and Manufacture 8.2 The fabrication of tapered perlite roof insulation board
products shall be acceptable if dimension and installation
6.1 Composition—Thebasicmaterialoftheinsulationboard
specifications are agreed upon between buyer and seller.
shall be perlite expanded by the applicatio
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C728 − 13 C728 − 15
Standard Specification for
1
Perlite Thermal Insulation Board
This standard is issued under the fixed designation C728; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope
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.
2. Referenced Documents
2.1 The following standards, of the issue in effect on the date of material purchase, form a part of this specification to the extent
specified herein:
2
2.2 ASTM Standards:
C165 Test Method for Measuring Compressive Properties of Thermal Insulations
C168 Terminology Relating to Thermal Insulation
C177 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of the
Guarded-Hot-Plate Apparatus
C203 Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation
C209 Test Methods for Cellulosic Fiber Insulating Board
C390 Practice for Sampling and Acceptance of Thermal Insulation Lots
C518 Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus
C1289 Specification for Faced Rigid Cellular Polyisocyanurate Thermal Insulation Board
E84 Test Method for Surface Burning Characteristics of Building Materials
C1763 Test Method for Water Absorption by Immersion of Thermal Insulation Materials
3. Terminology
3.1 For complete descriptions of terms used in this specification, refer to Terminology C168.
4. Classification
4.1 Perlite thermal insulation board is classified as follows:
4.1.1 Type 1, Roof Insulation Board—A perlite based roof insulation cover board.
1
This specification is under the jurisdiction of ASTM Committee C16 on Thermal Insulation and is the direct responsibility of Subcommittee C16.22 on Organic and
Nonhomogeneous Inorganic Thermal Insulations.
Current edition approved May 1, 2013March 1, 2015. Published May 2013June 2015. Originally approved in 1972. Last previous edition approved in 20102013 as
C728–05(2010).C728–13. DOI: 10.1520/C0728-13.10.1520/C0728-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C728 − 15
4.1.2 Type 2, Roof Cover or Recover Board—This is used primarily as a field-applied cover board over other roof insulations
or in reroofing applications. The product is also available to manufacturers of laminated rigid foam products as specified in
Specification C1289, Type III.
4.1.3 Type 3, Roof Cover or Recover Board—A perlite based cover board that is field applied over other roof insulations or in
re-roofing and recover applications. The product is also available to manufacturers of laminated rigid foam products as specified
in Specification C1289, Type III.
5. Ordering Information
5.1 Orders shall at least include the following information:
5.1.1 Title and designation Specification C728.
5.1.2 Product name, nominal thickness and dimensions.
5.1.3 Quantity of material ordered.
5.1.
...