ASTM-C1249 › Standard Guide for Secondary Seal for Sealed Insulating Glass Units for Structural Sealant Glazing Applications
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Scope
1.1 This guide covers design and fabrication considerations for the edge seal of conventionally sealed insulating glass units, herrein 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 guide 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.
1.5 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.
Keywords
adhesive failure; cohesive failure; edge seal; insulating glass; secondary seal; structural sealant; structural sealant glazing
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Document Number
ASTM-C1249-18R23
Revision Level
2018 R23 EDITION
Status
Current
Modification Type
New
Publication Date
Feb. 10, 2023
Document Type
Guide
Page Count
13 pages
Committee Number
C24.35