ASTM C919-12
(Practice)Standard Practice for Use of Sealants in Acoustical Applications
Standard Practice for Use of Sealants in Acoustical Applications
SIGNIFICANCE AND USE
Walls, ceilings, and floors in building construction, especially those that are of lightweight construction, and that are designed to reduce or limit sound transmission, can have undesirable sound transmission characteristics if care is not taken to seal joints, voids, and penetrations that typically occur. Unsealed joints, voids, and penetrations will substantially increase the sound transmission characteristics of these types of construction. By sealing them the transmission of sound can be substantially diminished by eliminating “flanking paths.”
SCOPE
1.1 This practice provides information for the use of sealants to reduce sound transmission characteristics of interior walls, ceilings, and floors by proper application of sealants to joints, voids, and penetrations normally found in building construction, which are commonly referred to as “flanking paths.”
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.
1.3 The committee with jurisdiction over this standard is not aware of any comparable standards published by other organizations.
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Designation: C919 − 12
Standard Practice for
1
Use of Sealants in Acoustical Applications
This standard is issued under the fixed designation C919; 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. Scope E336 Test Method for Measurement of Airborne Sound
Attenuation between Rooms in Buildings
1.1 This practice provides information for the use of seal-
E413 Classification for Rating Sound Insulation
ants to reduce sound transmission characteristics of interior
3
2.2 HUD Standard:
walls, ceilings, and floors by proper application of sealants to
HUD Minimum Property Standards for Housing, Section
joints, voids, and penetrations normally found in building
4910.1
construction, which are commonly referred to as “flanking
4
2.3 IBC Standard:
paths.”
International Building Code (IBC), Section 1207
1.2 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
3. Terminology
responsibility of the user of this standard to establish appro-
3.1 Definitions—For definitions of terms used in this rec-
priate safety and health practices and determine the applica-
ommended practice, see Terminologies C717 and C634.
bility of regulatory limitations prior to use.
1.3 Thecommitteewithjurisdictionoverthisstandardisnot
4. Significance and Use
aware of any comparable standards published by other orga-
nizations. 4.1 Walls, ceilings, and floors in building construction,
especially those that are of lightweight construction, and that
2. Referenced Documents are designed to reduce or limit sound transmission, can have
2
undesirable sound transmission characteristics if care is not
2.1 ASTM Standards:
takentosealjoints,voids,andpenetrationsthattypicallyoccur.
C634 Terminology Relating to Building and Environmental
Unsealed joints, voids, and penetrations will substantially
Acoustics
increase the sound transmission characteristics of these types
C717 Terminology of Building Seals and Sealants
of construction. By sealing them the transmission of sound can
C834 Specification for Latex Sealants
be substantially diminished by eliminating “flanking paths.”
C920 Specification for Elastomeric Joint Sealants
C1193 Guide for Use of Joint Sealants
5. Sound Transmission Requirements
C1520 Guide for Paintability of Latex Sealants
5.1 The construction industry has adopted Sound Transmis-
C1620 Specification for Aerosol Polyurethane and Aerosol
sionClass(STC)units,asdefinedinTerminologyC634,torate
Latex Foam Sealants
the sound transmission properties of walls, ceilings, and floors.
C1642 Practice for DeterminingAir Leakage Rates ofAero-
TheSTCisdeterminedinaccordancewithClassificationE413.
sol Foam Sealants and Other Construction Joint Fill and
The test data are obtained in accordance with Test Methods
Insulation Materials
E90 and E336.
E90 Test Method for Laboratory Measurement of Airborne
Sound Transmission Loss of Building Partitions and
5.2 Various building and other governmental adopted codes
Elements
include requirements for sound transmission.
5.2.1 For example, the International Building Code (IBC),
Section 1207, has requirements for the amount of sound that is
1
allowed to be transmitted through the interior walls, partitions,
This practice is under the jurisdiction of ASTM Committee C24 on Building
Seals and Sealants and is the direct responsibility of Subcommittee C24.10 on
and floor and ceiling assemblies between adjacent dwelling
Specifications, Guides and Practices.
units and between them and public spaces of a building.
CurrenteditionapprovedJune1,2012.PublishedJuly2012.Originallyapproved
in 1979. Last previous edition approved in 2008 as C919 – 08. DOI: 10.1520/
C0919-12.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Superintendent of Documents, U.S. Government Printing
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Office, Washington, DC 20402.
4
Standards volume information, refer to the standard’s Document Summary page on Available from International Code Council (ICC), 500 New Jersey Ave., NW,
the ASTM website. 6th Floor, Washington, DC 20001, http://www.iccsafe.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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C919 − 12
5.2.2 Additionally, the department of Housing and Urban
Development (HUD) has the following standard for STC
limitations for various housing units: HUD Minimum Property
Standards for Housing, Section 4910.1.
6. Why Seal Openings?
6.1 The sound transmission of a wal
...
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:C919–08 Designation:C919–12
Standard Practice for
1
Use of Sealants in Acoustical Applications
This standard is issued under the fixed designation C919; 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. Scope
1.1 This practice is a guide provides information for the use of sealants to reduce the sound transmission characteristics of
interior walls, ceilings, and floors by proper application of sealants to joints, voids, and penetrations normally found in building
construction, which are commonly referred to as “flanking paths.”
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.
1.3 The committee with jurisdiction over this standard is not aware of any comparable standards published by other
organizations.
2. Referenced Documents
2
2.1 ASTM Standards: C570Specification for Oil- and Resin-Base Caulking Compound for Building Construction
C634 Terminology Relating to Building and Environmental Acoustics
C717 Terminology of Building Seals and Sealants
C834 Specification for Latex Sealants
C920 Specification for Elastomeric Joint Sealants
C1193 Guide for Use of Joint Sealants
C1520 Guide for Paintability of Latex Sealants
C1620 Specification for Aerosol Polyurethane and Aerosol Latex Foam Sealants
C1642 Practice for DeterminingAir Leakage Rates ofAerosol Foam Sealants and Other Construction Joint Fill and Insulation
Materials
E90 Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions and Elements
E336 Test Method for Measurement of Airborne Sound Attenuation between Rooms in Buildings
E413 Classification for Rating Sound Insulation
E497Practice for Installing Sound-Isolating Lightweight Partitions Classification for Rating Sound Insulation
3
2.2 DHUD Standards:HUD Standard: HUD Minimum Property Standards for One and Two Family Housing, Section 4900.1
HUD Minimum Property Standard for Multi Family Housing, Section 4910.1
HUD Minimum Property Standard for Care Type Housing, Section 4920.1HUD Minimum Property Standards for Housing,
Section 4910.1
4
2.3 IBC Standard:
International Building Code (IBC), Section 1207
3. Significance and Use
3.1Constructionutilizinglightweightwallsandfloorscanhaveundesirablesoundtransmissioncharacteristicsifcareisnottaken
to seal joints and voids that are common to this type of construction. By sealing these penetrations the transmission of sound can
be diminished.
1
ThispracticeisunderthejurisdictionofASTMCommitteeC24onBuildingSealsandSealantsandisthedirectresponsibilityofSubcommitteeC24.10onSpecifications,
Guides and Practices.
CurrenteditionapprovedMayJune1,2008.2012.PublishedJune2008.July2012.Originallyapprovedin1979.Lastpreviouseditionapprovedin20022008asC919 – 028.
DOI: 10.1520/C0919-08.10.1520/C0919-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402.
4
Available from International Code Council (ICC), 500 New Jersey Ave., NW, 6th Floor, Washington, DC 20001, http://www.iccsafe.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
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C919–12
4.Sound Transmission Class
4.1The construction industry has adopted Sound Transmission Class (STC) units (defined in Definitions Terminology
3.1 Definitions—For definitions of terms used in this recommended practice, see Terminologies C717 and C634) to rate the
sound barrier properties of walls, ceilings, and floors. The STC is determined in accordance with Classification .
4. Significance and Use
4.1 Walls, ceilings, and floors in building construction, especially those that are of lightweight construction, and that are
designed to reduce or limit sound transmission, can have undesirable sound transmission characteristics if care is not taken to seal
joints, voids, and penetrations
...
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