ASTM E2692-10(2018)

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.
Designation: E2692 − 10 (Reapproved 2018)
Standard Test Method for
Structural Performance of Thermal Barriers in Fenestration
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 AAMA TIR-A8 Performance of Composite Thermal Barrier
Framing Systems
1.1 This test method evaluates the longitudinal shear
strength before and after thermal cycling for thermally broken
3. Terminology
composite thermal barriers used in framing of windows, doors,
and skylights. It also evaluates the ability of a thermal barrier 3.1 Definitions:
to maintain its longitudinal dimension after thermal cycling.
3.1.1 adhesive failure, n—when an fenestration framing
member loses the bond with the thermal barrier, during the
1.2 This test method is applicable to all fenestration prod-
application of the load in the shear test.
ucts that are constructed with structural thermal barriers that
3.1.2 cohesive failure, n—when the thermal barrier in a
are affixed along their length to the adjoining metal profile
fenestration framing member breaks apart within the matrix of
1.3 This test method is meant to be applicable to many types
the thermal barrier itself during the application of the load in
of fenestration frame types and is not meant to be specific to
the shear test.
any single frame construction type.
3.1.3 fenestration products, n—windows, doors, and sky-
1.4 The values stated in SI units are to be regarded as
lights.
standard. No other units of measurement are included in this
3.1.4 longitudinal shear, n—shear in a longitudinal plane, or
standard.
parallel to the longitudinal axis, of the fenestration framing
1.5 This standard does not purport to address all of the
member.
safety concerns, if any, associated with its use. It is the
3.1.5 metal failure, n—yieldingofthemetalpriororequalto
responsibility of the user of this standard to establish appro-
3 mm of displacement in the thermal barrier during the
priate safety, health, and environmental practices and deter-
application of the load in the shear test.
mine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accor-
3.1.6 room temperature, n—for this test method, it shall be
dance with internationally recognized principles on standard- defined as 22 6 3 °C.
ization established in the Decision on Principles for the
3.1.7 thermal barrier or thermal break, n—structure con-
Development of International Standards, Guides and Recom-
necting inner and outer metal profiles of a fenestration framing
mendations issued by the World Trade Organization Technical
member that consists of a thermally insulating (nonmetallic)
Barriers to Trade (TBT) Committee.
material used for the purpose of reducing heat transfer across
the assembly.
2. Referenced Documents
3.1.8 thermally broken composite, n—a fenestration framing
member composed of an inner and outer metal profile con-
2.1 AAMA Standards:
nected by a thermal barrier, affixed along their long axis.
AAMA 505 Dry Shrinkage and Composite Performance
Thermal Cycling Test Procedure
4. Summary of Test Method
4.1 This test method subjects thermally broken fenestration
extrusions to shear load before and after thermal cycling.
This test method is under the jurisdiction of ASTM Committee E06 on
Performance of Buildings and is the direct responsibility of Subcommittee E06.51
on Performance of Windows, Doors, Skylights and Curtain Walls.
5. Significance and Use
Current edition approved Sept. 1, 2018. Published September 2018. Originally
approved in 2010. Last previous edition approved in 2010 as E2692–10. DOI:
5.1 Thermal barriers require sufficient structural strength to
10.1520/E2692–10R18.
carry the loads imposed on fenestration members while reduc-
Available from the American Architectural Manufacturers Association
ing the heat transfer through the depth of the framing members
(AAMA), 1827 Walden Office Square, Suite 550, Schaumberg, IL 60173-4268,
http://www.aamanet.org. throughout their service life.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
E2692 − 10 (2018)
5.2 Sustained gravity, bending and tensile loads that stress two temperatures at a controlled rate, within the time required
the thermal barrier (that is, glazing infill weight, wind loads, on Fig. 1. The chamber shall have at least one thermocouple to
and glazing gasket pressure) are not covered by this test
monitor the interior temperature of the chamber.
method.
6.2 Auniversal testing machine or similar equipment with a
5.3 The reader is encouraged to read AAMA TIR-A8 for
constant rate of crosshead movement shall be capable of
further information on thermal barriers and testing.
exerting a measured force of up to 45 KN at a crosshead speed
of 5 mm⁄min.
6. Apparatus
6.3 Atest fixture shall be capable of holding one side of the
6.1 An environmental chamber shall be capable of main-
taining a high temperature of 70 6 3 ºC and maintaining a low fenestration framing member while exerting force on the
temperature of –29 6 3 ºC and the ability to ramp between the opposite side of the fenestration framing member. (See Fig. 2.)
FIG. 1 Thermal Cycling Schedule: One Cycle Air Temperatures
E2692 − 10 (2018)
NOTE 1—Excerpted from AAMA 505 and used with permission of AAMA.
FIG. 2 Shear Test Fixture
6.4 A measuring device capable of measuring 0.03 mm 9. Conditioning
increments.
9.1 The test specimens shall be cut from a prepared stock
length not less than 2.5 m in length. The stock length material
7. Hazards
shall be conditioned a minimum of seven days at room
temperature prior to cutting the three 700 mm specimens
7.1 Take precautions when working near the testing ma-
required for further testing.
chine for specimens breaking under loading and creating flying
hazards. Take ap
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