ASTM C991-08e1

Standard Specification for Flexible Fibrous Glass Insulation for Metal Buildings

ABSTRACT
This specification covers the classification, composition, and physical properties of flexible fibrous glass insulation for use as interior surface of walls and roofs of metal buildings. The basic insulation blanket is designed to be postprocessed by a laminating process that applies an adhesive bonded facing to provide the interior finish and vapor retarder requirements for the building envelope The flexible insulation is furnished into Types I and II. Type I which is a glass processed from the molten state into fibrous form, bonded with a thermosetting resin, and formed into a resilient flexible blanket or batt. Type II is a Type I material supplied with a suitable facing adhered to one surface. The following physical properties of Types I and II materials shall be determined: thermal resistance, surface burning characteristics, combustion characteristics, water vapor sorption, fungi resistance, corrosiveness, odor emission, dimensional tolerances, and humid aging.
SCOPE
1.1 This specification covers the classification, composition, and physical properties of flexible fibrous glass insulation for use in metal building roofs and walls.
1.2 The basic insulation blanket is designed to be post-processed by a laminating process that applies an adhesive bonded facing.
1.3 The thermal values measured in accordance with this specification for both pre-processed and post-processed insulation are for the insulation only and do not include the effects of air-film surface resistance, changes in mean temperature, or compression of insulation at the framing members of the building, through metal conductance of fasteners and other parallel heat-transfer paths due to design or installation techniques.
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 and health practices and determine the applicability of regulatory requirements prior to use.

General Information

• Status: Historical
• Publication Date: 30-Apr-2008
• ICS: 91.100.60 - Thermal and sound insulating materials
• Technical Committee: C16 - Thermal Insulation
• Drafting Committee: C16.23 - Blanket and Loose Fill Insulation

Relations

• Replaces: ASTM C991-08 - Standard Specification for Flexible Fibrous Glass Insulation for Metal Buildings
• Effective Date: 01-May-2008
• Replaced By: ASTM C991-15 - Standard Specification for Flexible Fibrous Glass Insulation for Metal Buildings
• Effective Date: 15-Apr-2015
• 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-May-2008
• Referred By: ASTM E2988-17(2022) - Standard Practice for Specimen Preparation and Mounting of Flexible Fibrous Glass Insulation for Metal Buildings to Assess Surface Burning Characteristics
• Effective Date: 01-May-2008

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
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Designation:C991 −08
StandardSpecification for
1
Flexible Fibrous Glass Insulation for Metal Buildings
This standard is issued under the fixed designation C991; 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.
1
ε NOTE—6.1.2 was editorially updated in June 2008.
1. Scope ments and Thermal Transmission Properties by Means of
the Guarded-Hot-Plate Apparatus
1.1 Thisspecificationcoverstheclassification,composition,
C390 Practice for Sampling and Acceptance of Thermal
and physical properties of flexible fibrous glass insulation for
Insulation Lots
use in metal building roofs and walls.
C518 Test Method for Steady-State Thermal Transmission
1.2 The basic insulation blanket is designed to be post-
Properties by Means of the Heat Flow Meter Apparatus
processed by a laminating process that applies an adhesive
C653 Guide for Determination of the Thermal Resistance of
bonded facing.
Low-Density Blanket-Type Mineral Fiber Insulation
1.3 The thermal values measured in accordance with this C665 Specification for Mineral-Fiber Blanket Thermal Insu-
lation for Light Frame Construction and Manufactured
specification for both pre-processed and post-processed insu-
lation are for the insulation only and do not include the effects Housing
C755 Practice for Selection of Water Vapor Retarders for
of air-film surface resistance, changes in mean temperature, or
compression of insulation at the framing members of the Thermal Insulation
C1104/C1104M Test Method for Determining the Water
building, through metal conductance of fasteners and other
parallel heat-transfer paths due to design or installation tech- Vapor Sorption of Unfaced Mineral Fiber Insulation
C1136 Specification for Flexible, Low Permeance Vapor
niques.
Retarders for Thermal Insulation
1.4 The values stated in inch-pound units are to be regarded
C1258 Test Method for Elevated Temperature and Humidity
as standard. The values given in parentheses are mathematical
Resistance of Vapor Retarders for Insulation
conversions to SI units that are provided for information only
C1304 Test Method for Assessing the Odor Emission of
and are not considered standard.
Thermal Insulation Materials
1.5 This standard does not purport to address all of the
C1338 Test Method for Determining Fungi Resistance of
safety concerns, if any, associated with its use. It is the
Insulation Materials and Facings
responsibility of the user of this standard to establish appro-
E84 Test Method for Surface Burning Characteristics of
priate safety and health practices and determine the applica-
Building Materials
bility of regulatory requirements prior to use.
E136 Test Method for Behavior of Materials in a Vertical
Tube Furnace at 750°C
2. Referenced Documents
2.2 Other Referenced Document:
2
2.1 ASTM Standards:
CAN/ULC-S102 Standard Method of Test for Surface Burn-
C167 Test Methods for Thickness and Density of Blanket or 3
ing Characteristics of Building Materials andAssemblies
Batt Thermal Insulations
C168 Terminology Relating to Thermal Insulation
3. Terminology
C177 Test Method for Steady-State Heat Flux Measure-
3.1 Definitions—For definitions of terms relating to
insulation, refer to Terminology C168.
1
This specification is under the jurisdiction of ASTM Committee C16 on
Thermal Insulation and is the direct responsibility of Subcommittee C16.23 on
4. Classification
Blanket and Loose Fill Insulation.
4.1 The flexible fibrous glass insulation is furnished in two
Current edition approved May 1, 2008. Published May 2008. Originally
approved in 1983. Last previous edition approved in 2003 as C991 – 03. DOI:
types, as follows:
10.1520/C0991-08E01.
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
3
Standards volume information, refer to the standard’s Document Summary page on Available from Underwriters Laboratories (UL), 333 Pfingsten Rd.,
the ASTM website. Northbrook, IL 60062-2096, http://www.ul.com.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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C991−08
4.1.1 Type I—Glass processed from the molten state into with the insulation shall show no greater corrosion than that
fibrous form, bonded with a thermosetting resin, and formed observed on the comparative plates in contact with sterile
into a blanket or batt. cotton.
4.1.2 Type II—Type I material supplied with a suitable
6.1.7 Odor Emission—When tested in accordance with Test
facing adhered to one surface.
Method C1304, the i
...

This document is not anASTM standard and is intended only to provide the user of anASTM 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.
e1
Designation:C991–03 Designation: C 991 – 08
Standard Specification for
1
Flexible Fibrous Glass Insulation for Metal Buildings
This standard is issued under the fixed designation C991; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1
e NOTE—6.1.2 was editorially updated in June 2008.
1. Scope
1.1This specification covers the classification, composition, and physical properties of flexible fibrous glass insulation for use
as interior surface of walls and roofs of metal buildings.
1.2The basic insulation blanket is designed to be post-processed by a laminating process that applies an adhesive bonded facing
to provide the interior finish and vapor retarder requirements for the building envelope.
1.1 This specification covers the classification, composition, and physical properties of flexible fibrous glass insulation for use
in metal building roofs and walls.
1.2 The basic insulation blanket is designed to be post-processed by a laminating process that applies an adhesive bonded
facing.
1.3 The thermal values measured in accordance with this specification for both pre-processed and post-processed insulation are
for the insulation only and do not include the effects of air-film surface resistance, changes in mean temperature, or compression
ofinsulationattheframingmembersofthebuilding,throughmetalconductanceoffastenersandotherparallelheat-transferpaths
due to design or installation techniques.
1.4The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for
information only.
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 and health practices and determine the applicability of regulatory
requirements prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
C167 Test Methods for Thickness and Density of Blanket or Batt Thermal Insulations
C168Terminology Relating to Thermal Insulating Materials 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
C390Criteria Practice for Sampling and Acceptance of Preformed Thermal Insulation Lots
C518 Test Method for Steady-State Heat Flux Measurements and Thermal Transmission Properties by Means of Thethe Heat
Flow Meter Apparatus
C653 Guide for Determination of the Thermal Resistance of Low-Density Blanket-Type Mineral Fiber Insulation
C665 Specification for Mineral-Fiber Blanket Thermal Insulation for Light Frame Construction and Manufactured Housing
C755 Practice for Selection of Water Vapor Retarders for Thermal Insulation
C1104/C1104M Test Method for Determining the Water Vapor Sorption of Unfaced Mineral Fiber Insulation.
C1136 Specification for Flexible, Low Permeance Vapor Retarders for Thermal Insulation
C1258 Test Method for Elevated Temperature and Humidity Resistance of Vapor Retarders for Insulation
C1304 Test Method for Assessing the Odor Emission of Thermal Insulation Materials
C1338 Test Method for Determining Fungi Resistance of Insulation Materials and Facings
1
ThisspecificationisunderthejurisdictionofASTMCommitteeC16onThermalInsulationandisthedirectresponsibilityofSubcommitteeC16.23onBlanketandLoose
Fill Insulation.
Current edition approved Oct.May 1, 2003.2008. Published November 2003.May 2008. Originally approved in 1983. Last previous edition approved in 20002003 as
C991–003.
2
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,[e-mail] 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.
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C991–08
E84 Test Method for Surface Burning Characteristics of Building Materials
E96Test Methods for Water Vapor Transmission of Materials
E136 Test Method for Behavi
...