ASTM C1472-10
(Guide)Standard Guide for Calculating Movement and Other Effects When Establishing Sealant Joint Width
Standard Guide for Calculating Movement and Other Effects When Establishing Sealant Joint Width
SIGNIFICANCE AND USE
Design professionals, for aesthetic reasons, have desired to limit the spacing and width of sealant joints on exterior walls and other locations of new buildings. Analysis of the performance factors and especially tolerances that affect a sealant joint is necessary to determine if a joint will have durability and be effective in maintaining a seal against the passage of air and water and not experience premature deterioration. If performance factors and tolerances are not understood and included in the design of a sealant joint, then the sealant may reach its durability limit and failure is a distinct possibility.
Sealant joint failure can result in increased building energy usage due to air infiltration or exfiltration, water infiltration, and deterioration of building systems and materials. Infiltrating water can cause spalling of porous and friable building materials such as concrete, brick, and stone; corrosion of ferrous metals; and decomposition of organic materials, among other effects. Personal injury can result from a fall incurred due to a wetted interior surface as a result of a failed sealant joint. Building indoor air quality can be affected due to organic growth in concealed and damp areas. Deterioration is often difficult and very costly to repair, with the cost of repair work usually greatly exceeding the original cost of the sealant joint work.
This guide is applicable to sealants with an established movement capacity, in particular elastomeric sealants that meet Specification C920 with a minimum movement capacity rating of ± 12½ percent. In general, a sealant with less than ± 12½ percent movement capacity can be used with the joint width sizing calculations; however, the width of a joint using such a sealant will generally become too large to be practically considered and installed. It is also applicable to precured sealant extrusions with an established movement capacity that meets Specification C1518.
The intent of this guide is to describe...
SCOPE
1.1 This guide provides information on performance factors such as movement, construction tolerances, and other effects that should be accounted for to properly establish sealant joint size. It also provides procedures to assist in calculating and determining the required width of a sealant joint enabling it to respond properly to those movements and effects. Information in this guide is primarily applicable to single- and multi-component, cold-applied joint sealants and secondarily to precured sealant extrusions when used with properly prepared joint openings and substrate surfaces.
1.2 Although primarily directed towards the understanding and design of sealant joints for walls for buildings and other areas, the information contained herein is also applicable to sealant joints that occur in horizontal slabs and paving systems as well as various sloped building surfaces.
1.3 This guide does not describe the selection and properties of joint sealants (1) , nor their use and installation, which is described by Guide C1193.
1.4 For protective glazing systems that are designed to resist blast and other effects refer to Guide C1564 in combination with this guide.
1.5 This guide is not applicable to the design of joints sealed with aerosol foam sealants.
1.6 For structural sealant glazing systems refer to Guide C1401 in combination with this guide.
1.7 The values and calculations stated in SI units are to be regarded as the standard. The values given in parentheses and inch-pound units are provided for information only. SI units in this guide are in conformance with IEEE/ASTM SI 10-1997.
1.8 The Committee having jurisdiction for this guide is not aware of any comparable standards published by other organizations.
1.9 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 heal...
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Designation: C1472 − 10
StandardGuide for
Calculating Movement and Other Effects When Establishing
1
Sealant Joint Width
This standard is issued under the fixed designation C1472; 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. Scope 1.9 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This guide provides information on performance factors
responsibility of the user of this standard to establish appro-
such as movement, construction tolerances, and other effects
priate safety and health practices and determine the applica-
that should be accounted for to properly establish sealant joint
bility of regulatory limitations prior to use.
size. It also provides procedures to assist in calculating and
determining the required width of a sealant joint enabling it to
2. Referenced Documents
respond properly to those movements and effects. Information
3
in this guide is primarily applicable to single- and multi-
2.1 ASTM Standards:
component, cold-applied joint sealants and secondarily to
C216Specification for Facing Brick (Solid Masonry Units
precured sealant extrusions when used with properly prepared
Made from Clay or Shale)
joint openings and substrate surfaces.
C717Terminology of Building Seals and Sealants
1.2 Although primarily directed towards the understanding
C719Test Method for Adhesion and Cohesion of Elasto-
and design of sealant joints for walls for buildings and other meric Joint Sealants Under Cyclic Movement (Hockman
areas, the information contained herein is also applicable to
Cycle)
sealantjointsthatoccurinhorizontalslabsandpavingsystems C794TestMethodforAdhesion-in-PeelofElastomericJoint
as well as various sloped building surfaces.
Sealants
C920Specification for Elastomeric Joint Sealants
1.3 Thisguidedoesnotdescribetheselectionandproperties
2
C1193Guide for Use of Joint Sealants
of joint sealants (1) , nor their use and installation, which is
C1401Guide for Structural Sealant Glazing
described by Guide C1193.
C1481Guide for Use of Joint Sealants with Exterior Insu-
1.4 Forprotectiveglazingsystemsthataredesignedtoresist
lation and Finish Systems (EIFS)
blast and other effects refer to Guide C1564 in combination
C1518Specification for Precured Elastomeric Silicone Joint
with this guide.
Sealants
1.5 Thisguideisnotapplicabletothedesignofjointssealed
C1523Test Method for Determining Modulus, Tear and
with aerosol foam sealants.
Adhesion Properties of Precured Elastomeric Joint Seal-
ants
1.6 For structural sealant glazing systems refer to Guide
C1564Guide for Use of Silicone Sealants for Protective
C1401 in combination with this guide.
Glazing Systems
1.7 The values and calculations stated in SI units are to be
2.2 American Concrete Institute (ACI), American Society of
regarded as the standard. The values given in parentheses and
4
Civil Engineers (ASCE), and The Masonry Society (TMS):
inch-pound units are provided for information only. SI units in
Building Code Requirementsfor Masonry Structures (ACI
this guide are in conformance with IEEE/ASTM SI 10-1997.
530-02/ASCE 5-02/TMS 401-02) Reported by the Ma-
1.8 The Committee having jurisdiction for this guide is not
sonry Standards Joint Committee (MSJC)
aware of any comparable standards published by other orga-
nizations.
1 3
ThisguideisunderthejurisdictionofASTMCommitteeC24onBuildingSeals For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and Sealants and is the direct responsibility of Subcommittee C24.10 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Specifications, Guides and Practices. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved June 1, 2010. Published June 2010. Originally the ASTM website.
4
approved in 2000. Last previous edition approved in 2006 as C1472–06. DOI: AvailablefromAmericanConcreteInstitute(ACI),P.O.Box9094,Farmington
10.1520/C1472-10. Hills,MI48333,AmericanSocietyofCivilEngineers(ASCE),1801AlexanderBell
2
Theboldfacenumbersinparenthesesrefertothelistofreferencesattheendof Dr., Reston, VA 20191 and The Masonry Society, 3970 Broadway, Suite 201-D,
this standard. Boulder, CO 80304-1135.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C1472 − 10
5
2.3 Prestressed Concrete Institute (PCI):
H = Heat capacity constant for a particular material
X
Manual for Quality Control for Plants and Production of
I = Moisture-induced irreversi
...
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.
Designation:C1472–06 Designation: C1472 – 10
Standard Guide for
Calculating Movement and Other Effects When Establishing
1
Sealant Joint Width
This standard is issued under the fixed designation C1472; 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. Scope
1.1 This guide provides information on performance factors such as movement, construction tolerances, and other effects that
shouldbeaccountedfortoproperlyestablishsealantjointsize.Italsoprovidesprocedurestoassistincalculatinganddetermining
the required width of a sealant joint enabling it to respond properly to those movements and effects. Information in this guide is
primarily applicable to single- and multi-component, cold-applied joint sealants and secondarily to precured sealant extrusions
when used with properly prepared joint openings and substrate surfaces.
1.2 Although primarily directed towards the understanding and design of sealant joints for walls for buildings and other areas,
the information contained herein is also applicable to sealant joints that occur in horizontal slabs and paving systems as well as
various sloped building surfaces.
2
1.3 This guide does not describe the selection and properties of joint sealants (1) , which are described by Guide C1299, nor
their use and installation, which is described by Guide C1193.
1.4 For protective glazing systems that are designed to resist blast and other effects refer to Guide1564Guide C1564 in
combination with this guide.
1.5 This guide is not applicable to the design of joints sealed with aerosol foam sealants.
1.6 For structural sealant glazing systems refer to Guide C1401 in combination with this guide.
1.7 The values and calculations stated in SI units are to be regarded as the standard. The values given in parentheses and
inch-pound units are provided for information only. SI units in this guide are in conformance with IEEE/ASTM SI 10-1997.
1.8 TheCommitteehavingjurisdictionforthisguideisnotawareofanycomparablestandardspublishedbyotherorganizations.
1.9 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
3
2.1 ASTM Standards:
C216 Specification for Facing Brick (Solid Masonry Units Made from Clay or Shale)
C717 Terminology of Building Seals and Sealants
C719 Test Method for Adhesion and Cohesion of Elastomeric Joint Sealants Under Cyclic Movement (Hockman Cycle)
C794 Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants
C920 Specification for Elastomeric Joint Sealants
C1193 Guide for Use of Joint Sealants C1299Guide for Use in Selection of Liquid-Applied Sealants
C1401 Guide for Structural Sealant Glazing
C1481 Guide for Use of Joint Sealants with Exterior Insulation and Finish Systems (EIFS)
C1518 Specification for Precured Elastomeric Silicone Joint Sealants
C1523 Test Method for Determining Modulus, Tear and Adhesion Properties of Precured Elastomeric Joint Sealants
C1564 Guide for Use of Silicone Sealants for Protective Glazing Systems
1
This guide is under the jurisdiction ofASTM Committee C24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.10 on Specifications,
Guides and Practices.
Current edition approved Jan.June 1, 2006.2010. Published March 2006.June 2010. Originally approved in 2000. Last previous edition approved in 20052006 as
C1472–056. DOI: 10.1520/C1472-106.
2
The boldface numbers in parentheses refer to the list of references at the end of this standard.
3
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.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 ----------------------
C1472 – 10
4
2.2 American Concrete Institute (ACI), American Society of Civil Engineers (ASCE), and The Masonry Society (TMS):
Building Code Requirements for Masonry Structures (ACI 530-02/ASCE 5-02/TMS 401-02) Reported by the Masonry
Standards Joint
...
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