Standard Test Method for Structural Performance of Thermal Barriers in Fenestration Products <sup>,</sup>

SIGNIFICANCE AND USE
Thermal barriers require sufficient structural strength to carry the loads imposed on fenestration members while reducing the heat transfer through the depth of the framing members throughout their service life.  
Sustained gravity, bending and tensile loads that stress the thermal barrier (that is, glazing infill weight, wind loads, and glazing gasket pressure) are not covered by this test method.  
The reader is encouraged to read AAMA TIR-A8 for further information on thermal barriers and testing.
SCOPE
1.1 This test method evaluates the longitudinal shear strength before and after thermal cycling for thermally broken composite thermal barriers used in framing of windows, doors, and skylights. It also evaluates the ability of a thermal barrier to maintain its longitudinal dimension after thermal cycling.  
1.2 This test method is applicable to all fenestration products that are constructed with structural thermal barriers that are affixed along their length to the adjoining metal profile
1.3 This test method is meant to be applicable to many types of fenestration frame types and is not meant to be specific to any single frame construction type.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.

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Publication Date
14-Jan-2010
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ASTM E2692-10 - Standard Test Method for Structural Performance of Thermal Barriers in Fenestration Products <sup>,</sup>
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: E2692 − 10
Standard Test Method for
Structural Performance of Thermal Barriers in Fenestration
1,2
Products
This standard is issued under the fixed designation E2692; 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 3.1.1 adhesive failure, n—when an fenestration framing
member loses the bond with the thermal barrier, during the
1.1 This test method evaluates the longitudinal shear
application of the load in the shear test.
strength before and after thermal cycling for thermally broken
composite thermal barriers used in framing of windows, doors,
3.1.2 cohesive failure, n—when the thermal barrier in a
and skylights. It also evaluates the ability of a thermal barrier fenestration framing member breaks apart within the matrix of
to maintain its longitudinal dimension after thermal cycling. the thermal barrier itself during the application of the load in
the shear test.
1.2 This test method is applicable to all fenestration prod-
ucts that are constructed with structural thermal barriers that
3.1.3 fenestration products, n—windows, doors, and sky-
are affixed along their length to the adjoining metal profile lights.
1.3 Thistestmethodismeanttobeapplicabletomanytypes
3.1.4 longitudinal shear, n—shear in a longitudinal plane, or
of fenestration frame types and is not meant to be specific to parallel to the longitudinal axis, of the fenestration framing
any single frame construction type. member.
1.4 The values stated in SI units are to be regarded as 3.1.5 metal failure, n—yieldingofthemetalpriororequalto
standard. No other units of measurement are included in this
3mm of displacement in the thermal barrier during the appli-
standard. cation of the load in the shear test.
1.5 This standard does not purport to address all of the
3.1.6 room temperature, n—for this test method, it shall be
safety concerns, if any, associated with its use. It is the
defined as 22 6 3°C.
responsibility of the user of this standard to establish appro-
3.1.7 thermal barrier or thermal break, n—structure con-
priate safety and health practices and determine the applica-
necting inner and outer metal profiles of a fenestration framing
bility of regulatory limitations prior to use.
member that consists of a thermally insulating (nonmetallic)
material used for the purpose of reducing heat transfer across
2. Referenced Documents
the assembly.
3
2.1 AAMA Standards:
3.1.8 thermally broken composite, n—a fenestration framing
AAMA 505 Dry Shrinkage and Composite Performance
member composed of an inner and outer metal profile con-
Thermal Cycling Test Procedure
nected by a thermal barrier, affixed along their long axis.
AAMA TIR-A8 Performance of Composite Thermal Barrier
Framing Systems
4. Summary of Test Method
3. Terminology
4.1 This test method subjects thermally broken fenestration
3.1 Definitions:
extrusions to shear load before and after thermal cycling.
5. Significance and Use
1
This test method is under the jurisdiction of ASTM Committee E06 on
Performance of Buildings and is the direct responsibility of Subcommittee E06.51
5.1 Thermal barriers require sufficient structural strength to
on Performance of Windows, Doors, Skylights and Curtain Walls.
carry the loads imposed on fenestration members while reduc-
Current edition approved Jan. 15, 2010. Published March 2010. DOI: 10.1520/
E2692-10.
ing the heat transfer through the depth of the framing members
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
throughout their service life.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
5.2 Sustained gravity, bending and tensile loads that stress
the ASTM website.
the thermal barrier (that is, glazing infill weight, wind loads,
3
Available from the American Architectural Manufacturers Association
and glazing gasket pressure) are not covered by this test
(AAMA), 1827 Walden Office Square, Suite 550, Schaumberg, IL 60173-4268,
http://www.aamanet.org. method.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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E2692 − 10
5.3 The reader is encouraged to read AAMA TIR-A8 for 6.2 Auniversal testing machine or similar equipment with a
further information on thermal barriers and testing. constant rate of crosshead movement shall be capable of
exerting a measured force of up to 45 KN at a crosshead speed
6. Apparatus
of 5 mm⁄min.
6.1 An environmental chamber shall be capable of main
...

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