ASTM C1249-06

Standard Guide for Secondary Seal for Sealed Insulating Glass Units for Structural Sealant Glazing Applications

SCOPE
1.1 This guide covers design and fabrication considerations for the edge seal of conventionally sealed insulating glass units, herein referred to as IG units. The IG units described are used in structural silicone sealant glazing systems, herein referred to as SSG systems. SSG systems typically are either two or four sided, glazed with a structural sealant. Other conditions such as one, three, five, six sided may be used.
1.2 This guides does not cover the IG units of other than conventional edge seal design (Fig 1); however, the information contained herein may be of benefit to the designers of such IG units.
1.3 In an SSG system, IG units are retained to a metal framing system by a structural seal (Fig 2). The size and shape of that seal, as well as numerous other SSG system design considerations, are not addressed in this guide.
1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
This standard does not purport to address all of the safety problems, 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.
1.5 The committee with jurisdiction for this standard is not aware of any comparable standard guides published by other organizations.
1.6 This test method determines the thoroughness of mixing of a multi-component sealant.
1.7 This test method determines whether the rate of cure of a mixed sealant sample is within the sealant manufacturer's written specifications.
1.8 This test method determines whether there is adequate adhesion of a sealant to the surface of a spacer.

General Information

• Status: Historical
• Publication Date: 31-Jul-2006
• ICS: 81.040.20 - Glass in building
• Technical Committee: C24 - Building Seals and Sealants
• Drafting Committee: C24.10 - Specifications, Guides and Practices

Relations

• Replaces: ASTM C1249-93(2000) - Standard Guide for Secondary Seal for Sealed Insulating Glass Units for Structural Sealant Glazing Applications
• Effective Date: 01-Aug-2006
• Replaced By: ASTM C1249-06a - Standard Guide for Secondary Seal for Sealed Insulating Glass Units for Structural Sealant Glazing Applications
• Effective Date: 01-Sep-2006
• Referred By: ASTM C1401-23 - Standard Guide for Structural Sealant Glazing
• Effective Date: 01-Aug-2006
• Referred By: ASTM C1193-16(2023) - Standard Guide for Use of Joint Sealants
• Effective Date: 01-Aug-2006
• Referred By: ASTM E2190-19 - Standard Specification for Insulating Glass Unit Performance and Evaluation
• Effective Date: 01-Aug-2006
• Referred By: ASTM C1369-19 - Standard Specification for Secondary Edge Sealants for Structurally Glazed Insulating Glass Units
• Effective Date: 01-Aug-2006

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
Designation:C1249–06
Standard Guide for
Secondary Seal for Sealed Insulating Glass Units for
1
Structural Sealant Glazing Applications
This standard is issued under the fixed designation C1249; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This guide covers design and fabrication considerations
for the edge seal of conventionally sealed insulating glass
units, herein referred to as IG units.The IG units described are
used in structural silicone sealant glazing systems, herein
referred to as SSG systems. SSG systems typically are either
two or four sided, glazed with a structural sealant. Other
conditions such as one, three, five, six sided may be used.
1.2 This guides does not cover the IG units of other than
conventional edge seal design (Fig. 1); however, the informa-
tioncontainedhereinmaybeofbenefittothedesignersofsuch
IG units.
1.3 In an SSG system, IG units are retained to a metal
FIG. 1 Sealed IG Edge Seal: Basic Components
framingsystembyastructuralseal(Fig.2).Thesizeandshape
of that seal, as well as numerous other SSG system design
C717 Terminology of Building Seals and Sealants
considerations, are not addressed in this guide.
C794 Test Method for Adhesion-in-Peel of Elastomeric
1.4 The values stated in SI units are to be regarded as the
Joint Sealants
standard. The values given in parentheses are for information
C1087 Test Method for Determining Compatibility of
only.
Liquid-Applied Sealants with Accessories Used in Struc-
1.5 This standard does not purport to address all of the
tural Glazing Systems
safety problems, if any, associated with its use. It is the
C1135 Test Method for Determining Tensile Adhesion
responsibility of the user of this standard to establish appro-
Properties of Structural Sealants
priate safety and health practices and determine the applica-
C1184 Specification for Structural Silicone Sealants
bility of regulatory limitations prior to use.
E631 Terminology of Building Constructions
1.6 The committee with jurisdiction for this standard is not
E773 Test Method for Accelerated Weathering of Sealed
aware of any comparable standard guides published by other
Insulating Glass Units
organizations.
E774 Specification for the Classification of the Durability
3
2. Referenced Documents
of Sealed Insulating Glass Units
2
E2188 Test Method for Insulating Glass Unit Performance
2.1 ASTM Standards:
E2189 Test Method for Testing Resistance to Fogging in
C639 Test Method for Rheological (Flow) Properties of
Insulating Glass Units
Elastomeric Sealants
E2190 Specification for Insulating Glass Unit Performance
C679 Test Method for Tack-Free Time of Elastomeric
and Evaluation
Sealants
2.2 Other Standards:
Igma 73-8-2B Test Methods for Chemical Effects of
4
1 Glazing Compounds on Elastomeric Edge Seals
ThisguideisunderthejurisdictionofASTMCommitteeC24onBuildingSeals
and Sealants and is the direct responsibility of Subcommittee C24.10 on Specifi-
3. Terminology
cations, Guides and Practices.
Current edition approved Aug. 1, 2006. Published September 2006. Originally
3.1 Definitions:
approved in 1993. Last previous edition approved in 2000 as C1249–93(00).
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 Withdrawn.
4
the ASTM website. Available from IGMA, 111 E. Wacker Dr., Ste. 600, Chicago, IL 60601.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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C1249–06
FIG. 2 Typical A-Side SSG System Mullion: Horizontal Section (Vertical Joint)
3.1.1 Refer to Terminology C717 for definitions of the 3.3.6 F =allowable tensile stress, Pa (psi).
t
following terms used in this guide: adhesive failure, bead, 3.3.7 F =yield stress, Pa (psi).
y
cohesive failure, compatibility, cure, elongation, gasket, glaz- 3.3.8 H =height, m (ft).
ing, joint, lite, modulus, non-sag sealant, seal, sealant, sealant 3.3.9 L =perimeter length, m (ft).
2 2
backing, setting block, shelf-life, silicone sealant, spacer, 3.3.10 M =mass per unit area, N/m (lb/ft ).
2
structural sealant, substrate, tooling, and working life. Refer to 3.3.11 P =applied load, Pa (lbf/ft ).
Terminology E631 for the definition of sealed insulating glass 3.3.12 W =width, m (ft).
as used in this guide.
3.2 Definitions of Terms Specific to This Standard:
4. Significance and Use
3.2.1 desiccant—a hygroscopic material that adsorbs water
4.1 It should be
...