ASTM C1401-09a
(Guide)Standard Guide for Structural Sealant Glazing
Standard Guide for Structural Sealant Glazing
SIGNIFICANCE AND USE
The old saying “A chain is only as strong as its weakest link” is very applicable to a SSG system. In reality, a SSG system, to be successful, must establish and maintain a chain of adhesion. For example, a factory applied finish must adhere adequately to a metal framing member, a structural glazing sealant to that metal finish, that structural glazing sealant to a reflective coating on a glass lite, and lastly, that reflective coating to a glass surface. This guide will assist in the identification and development of, among others, performance criteria, test methods, and industry practices that should be implemented to obtain the required structural glazing sealant adhesion and compatibility with other system components.
Although this guide has been arranged to permit easy access to specific areas of interest, it is highly recommended that the entire guide is read and understood before establishing the requirements for a particular SSG system.
This guide should not be the only criteria upon which the design and installation of a SSG system is based. The information herein is provided to assist in the development of a specific program with a goal of achieving a successful SSG system installation. Information and guidelines are provided for the evaluation, design, installation, and maintenance of a SSG system and many of its various components. Considering the range of properties of structural glazing silicone sealants, as well as the many types of framing system designs, material combinations that can be used, various material finishes, and the many types and varieties of accessories, the information contained herein is general in nature.
Generally, the design, fabrication, and installation of a SSG system requires more technical knowledge and experience then is required for a conventionally glazed window or curtain wall system. To ensure the success of a SSG system, it is important that suppliers, fabricators, and installers of materials and components have a...
SCOPE
1.1 Structural sealant glazing, hereinafter referred to as SSG, is an application where a sealant not only can function as a barrier against the passage of air and water through a building envelope, but also primarily provides structural support and attachment of glazing or other components to a window, curtain wall, or other framing system.
1.2 This guide provides information useful to design professionals, manufacturers, contractors, and others for the design and installation of a SSG system. This information is applicable only to this glazing method when used for a building wall that is not more than 15° from vertical; however, limited information is included concerning a sloped SSG application.
1.3 Only a silicone chemically curing sealant specifically formulated, tested, and marketed for structural sealant glazing is acceptable for a SSG system application.
1.4 The committee with jurisdiction for this standard is not aware of any comparable standard published by other organizations.
1.5 The calculations and values stated in SI units are to be regarded as the standard. Values in parenthesis and inch-pound units are for information only. SI units in this guide are in conformance with IEEE/ASTM SI 10.
1.6 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.
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Designation: C1401 − 09a
StandardGuide for
1
Structural Sealant Glazing
This standard is issued under the fixed designation C1401; 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 C99 Test Method for Modulus of Rupture of Dimension
Stone
1.1 Structural sealant glazing, hereinafter referred to as
C119 Terminology Relating to Dimension Stone
SSG, is an application where a sealant not only can function as
C162 Terminology of Glass and Glass Products
abarrieragainstthepassageofairandwaterthroughabuilding
C503 Specification for Marble Dimension Stone
envelope, but also primarily provides structural support and
C509 Specification for Elastomeric Cellular Preformed Gas-
attachment of glazing or other components to a window,
ket and Sealing Material
curtain wall, or other framing system.
C510 Test Method for Staining and Color Change of Single-
1.2 This guide provides information useful to design
or Multicomponent Joint Sealants
professionals, manufacturers, contractors, and others for the
C568 Specification for Limestone Dimension Stone
design and installation of a SSG system. This information is
C615 Specification for Granite Dimension Stone
applicableonlytothisglazingmethodwhenusedforabuilding
C717 Terminology of Building Seals and Sealants
wall that is not more than 15° from vertical; however, limited
C719 Test Method for Adhesion and Cohesion of Elasto-
information is included concerning a sloped SSG application.
meric Joint Sealants Under Cyclic Movement (Hockman
1.3 Only a silicone chemically curing sealant specifically
Cycle)
formulated, tested, and marketed for structural sealant glazing
C794 TestMethodforAdhesion-in-PeelofElastomericJoint
is acceptable for a SSG system application.
Sealants
1.4 The committee with jurisdiction for this standard is not
C864 SpecificationforDenseElastomericCompressionSeal
aware of any comparable standard published by other organi-
Gaskets, Setting Blocks, and Spacers
zations.
C880 TestMethodforFlexuralStrengthofDimensionStone
C920 Specification for Elastomeric Joint Sealants
1.5 The calculations and values stated in SI units are to be
C1036 Specification for Flat Glass
regarded as the standard.Values in parenthesis and inch-pound
units are for information only. SI units in this guide are in C1048 Specification for Heat-Strengthened and Fully Tem-
conformance with IEEE/ASTM SI 10.
pered Flat Glass
C1087 Test Method for Determining Compatibility of
1.6 This standard does not purport to address all of the
Liquid-Applied Sealants with Accessories Used in Struc-
safety concerns, if any, associated with its use. It is the
tural Glazing Systems
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica- C1115 Specification for Dense Elastomeric Silicone Rubber
Gaskets and Accessories
bility of regulatory limitations prior to use.
C1135 Test Method for DeterminingTensileAdhesion Prop-
2. Referenced Documents
erties of Structural Sealants
2
C1172 Specification for Laminated Architectural Flat Glass
2.1 ASTM Standards:
C1184 Specification for Structural Silicone Sealants
B117 Practice for Operating Salt Spray (Fog) Apparatus
C1193 Guide for Use of Joint Sealants
C1201 Test Method for Structural Performance of Exterior
1
DimensionStoneCladdingSystemsbyUniformStaticAir
ThisguideisunderthejurisdictionofASTMCommitteeC24onBuildingSeals
and Sealants and is the direct responsibility of Subcommittee C24.10 on
Pressure Difference
Specifications, Guides and Practices.
C1248 TestMethodforStainingofPorousSubstratebyJoint
Current edition approved May 15, 2009. Published May 2009. Originally
Sealants
approved in 1998. Last previous edition approved in 2009 as C1401–09. DOI:
10.1520/C1401-09A.
C1249 Guide for Secondary Seal for Sealed Insulating Glass
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Units for Structural Sealant Glazing Applications
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
C1253 Test Method for Determining the Outgassing Poten-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. tial of Sealant Backing
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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C1401 − 09a
C1265 Test Method for Determining the Tensile Properties E1886 Test Method for Performance of Exterior Windows,
of an Insulating Glass Edge Seal for Structural Glazing Curtain Walls, Doors, and Impact Protective Systems
Impacted b
...
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:C1401–09 Designation: C 1401 – 09a
Standard Guide for
1
Structural Sealant Glazing
This standard is issued under the fixed designation C 1401; 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 Structural sealant glazing, hereinafter referred to as SSG, is an application where a sealant not only can function as a barrier
against the passage of air and water through a building envelope, but also primarily provides structural support and attachment of
glazing or other components to a window, curtain wall, or other framing system.
1.2 This guide provides information useful to design professionals, manufacturers, contractors, and others for the design and
installation of a SSG system. This information is applicable only to this glazing method when used for a building wall that is not
more than 15° from vertical; however, limited information is included concerning a sloped SSG application.
1.3 Only a silicone chemically curing sealant specifically formulated, tested, and marketed for structural sealant glazing is
acceptable for a SSG system application.
1.4 The committee with jurisdiction for this standard is not aware of any comparable standard published by other organizations.
1.5 The calculations and values stated in SI units are to be regarded as the standard. Values in parenthesis and inch-pound units
are for information only. SI units in this guide are in conformance with IEEE/ASTM SI 10.
1.6 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
2.1 ASTM Standards:
B117 Practice for Operating Salt Spray (Fog) Apparatus
C99 Test Method for Modulus of Rupture of Dimension Stone
C119 Terminology Relating to Dimension Stone
C 162 Terminology of Glass and Glass Products
C 503 Specification for Marble Dimension Stone
C 509 Specification for Elastomeric Cellular Preformed Gasket and Sealing Material
C 510 Test Method for Staining and Color Change of Single- or Multicomponent Joint Sealants
C 568 Specification for Limestone Dimension Stone
C 615 Specification for Granite Dimension Stone
C 717 Terminology of Building Seals and Sealants
C 719 Test Method for Adhesion and Cohesion of Elastomeric Joint Sealants Under Cyclic Movement (Hockman Cycle)
C 794 Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants
C 864 Specification for Dense Elastomeric Compression Seal Gaskets, Setting Blocks, and Spacers
C 880 Test Method for Flexural Strength of Dimension Stone
C 920 Specification for Elastomeric Joint Sealants
C 1036 Specification for Flat Glass
C 1048 Specification for Heat-Treated Flat GlassKind HS, Kind FT Coated and Uncoated Glass
C 1087 Test Method for Determining Compatibility of Liquid-Applied Sealants with Accessories Used in Structural Glazing
Systems
C 1115 Specification for Dense Elastomeric Silicone Rubber Gaskets and Accessories
C 1135 Test Method for Determining Tensile Adhesion Properties of Structural Sealants
C 1172 Specification for Laminated Architectural Flat Glass
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 AprilMay 15, 2009. Published May 2009. Originally approved in 1998. Last previous edition approved in 20072009 as C 1401–079.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book ofASTM 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 ----------------------
C 1401 – 09a
C 1184 Specification for Structural Silicone Sealants
C 1193 Guide for Use of Joint Sealants
C 1201 Test Method for Structural Performance of Exterior Dimension Stone Cladding Systems by Uniform StaticAir Pressure
Difference
C 1248 Test Method for Staining of Porous Substrate by Joint Sealants
C 1249 Guide for Secondary Seal for Sealed
...
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