ASTM C1472-16e1

Standard Guide for Calculating Movement and Other Effects When Establishing Sealant Joint Width

SIGNIFICANCE AND USE
4.1 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.  
4.2 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.  
4.3 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 ± 121/2 percent. In general, a sealant with less than ± 121/2 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.  
4.4 The intent of th...
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)2, 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,...

General Information

• Status: Historical
• Publication Date: 30-Jun-2016
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: C24 - Building Seals and Sealants
• Drafting Committee: C24.10 - Specifications, Guides and Practices

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
´1
Designation: C1472 − 16
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
ε NOTE—In the last line of 4.4 the word “predicted” was corrected editorially to “predicated” in November 2019.
1. Scope 1.8 The Committee having jurisdiction for this guide is not
aware of any comparable standards published by other orga-
1.1 This guide provides information on performance factors
nizations.
such as movement, construction tolerances, and other effects
1.9 This standard does not purport to address all of the
that should be accounted for to properly establish sealant joint
safety concerns, if any, associated with its use. It is the
size. It also provides procedures to assist in calculating and
responsibility of the user of this standard to establish appro-
determining the required width of a sealant joint enabling it to
priate safety, health, and environmental practices and deter-
respond properly to those movements and effects. Information
mine the applicability of regulatory limitations prior to use.
in this guide is primarily applicable to single- and multi-
1.10 This international standard was developed in accor-
component, cold-applied joint sealants and secondarily to
dance with internationally recognized principles on standard-
precured sealant extrusions when used with properly prepared
ization established in the Decision on Principles for the
joint openings and substrate surfaces.
Development of International Standards, Guides and Recom-
1.2 Although primarily directed towards the understanding
mendations issued by the World Trade Organization Technical
and design of sealant joints for walls for buildings and other
Barriers to Trade (TBT) Committee.
areas, the information contained herein is also applicable to
sealantjointsthatoccurinhorizontalslabsandpavingsystems
2. Referenced Documents
as well as various sloped building surfaces.
3
2.1 ASTM Standards:
1.3 Thisguidedoesnotdescribetheselectionandproperties
C216Specification for Facing Brick (Solid Masonry Units
2
of joint sealants (1) , nor their use and installation, which is
Made from Clay or Shale)
described by Guide C1193.
C717Terminology of Building Seals and Sealants
1.4 Forprotectiveglazingsystemsthataredesignedtoresist
C719Test Method for Adhesion and Cohesion of Elasto-
blast and other effects refer to Guide C1564 in combination
meric Joint Sealants Under Cyclic Movement (Hockman
with this guide.
Cycle)
C794TestMethodforAdhesion-in-PeelofElastomericJoint
1.5 Thisguideisnotapplicabletothedesignofjointssealed
Sealants
with aerosol foam sealants.
C920Specification for Elastomeric Joint Sealants
1.6 For structural sealant glazing systems refer to Guide
C1193Guide for Use of Joint Sealants
C1401 in combination with this guide.
C1401Guide for Structural Sealant Glazing
1.7 The values and calculations stated in SI units are to be
C1481Guide for Use of Joint Sealants with Exterior Insu-
regarded as the standard. The values given in parentheses and
lation and Finish Systems (EIFS)
inch-pound units are provided for information only. SI units in
C1518Specification for Precured Elastomeric Silicone Joint
this guide are in conformance with IEEE/ASTM SI 10-1997.
Sealants
C1523Test Method for Determining Modulus, Tear and
Adhesion Properties of Precured Elastomeric Joint Seal-
1
ants
ThisguideisunderthejurisdictionofASTMCommitteeC24onBuildingSeals
and Sealants and is the direct responsibility of Subcommittee C24.10 on
Specifications, Guides and Practices.
Current edition approved July 1, 2016. Published August 2016. Originally
3
approved in 2000. Last previous edition approved in 2010 as C1472–10. DOI: For referenced ASTM standards, visit the ASTM website, www.astm.org, or
10.1520/C1472-16E01. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
2
Theboldfacenumbersinparenthesesrefertothelistofreferencesattheendof Standards volume information, refer to the standard’s Document Summary page on
this standard. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
´1
C1472 − 16
C1564Guide for Use of Silicone Sealants for Protective
α = Coefficient of linear thermal movement
Glazing Systems
α = Coefficient of linear thermal movement for brick
B
2.2 The tables included in this guide are based on the
α = Coefficientoflinearthermalmovementforaparticu-
X
ref
...

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.
´1
Designation: C1472 − 16 C1472 − 16
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. 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—In the last line of 4.4 the word “predicted” was corrected editorially to “predicated” in November 2019.
1. 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.
2
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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use.
1.10 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.
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
1
This guide is under the jurisdiction of ASTM Committee C24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.10 on Specifications,
Guides and Practices.
Current edition approved July 1, 2016. Published August 2016. Originally approved in 2000. Last previous edition approved in 2010 as C1472 – 10. DOI:
10.1520/C1472-16.10.1520/C1472-16E01.
2
The boldface numbers in parentheses refer to the list of references at the end of this standard.
3
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 ----------------------
´1
C1472 − 16
C1193 Guide for Use of Joint 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 Te
...