ASTM E2570/E2570M-07(2014)e1
(Test Method)Standard Test Methods for Evaluating Water-Resistive Barrier (WRB) Coatings Used under Exterior Insulation and Finish Systems (EIFS) or EIFS with Drainage
Standard Test Methods for Evaluating Water-Resistive Barrier (WRB) Coatings Used under Exterior Insulation and Finish Systems (EIFS) or EIFS with Drainage
SIGNIFICANCE AND USE
4.1 This series of test methods provides a means to evaluate performance of the water-resistive barrier coating when subjected to various physical and environmental conditions. The water-resistive barrier coating is applied between the EIFS and substrate in an EIFS-clad wall assembly and is intended to provide additional protection to the building and its contents from incidental moisture intrusion that may occur through the building envelope. Although protected from direct weather exposure after the EIFS is installed, the coating must be durable and weather resistant as it is subjected to various environmental conditions prior to application of the EIFS as well as while the system is in service.
SCOPE
1.1 These test methods apply to trowel, roller, or spray applied Water-resistive barrier (WRB) coatings that are applied over exterior sheathing prior to application of EIFS or EIFS with drainage wall claddings.
1.2 Test methods for in place wall system and cladding related to tests such as fire resistance, wind load capability, air barrier performance, and so forth. should also be considered but are outside the scope of this document.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 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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´1
Designation: E2570/E2570M − 07 (Reapproved 2014)
Standard Test Methods for
Evaluating Water-Resistive Barrier (WRB) Coatings Used
under Exterior Insulation and Finish Systems (EIFS) or EIFS
with Drainage
ThisstandardisissuedunderthefixeddesignationE2570/E2570M;thenumberimmediatelyfollowingthedesignationindicatestheyear
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 (´) indicates an editorial change since the last revision or reapproval.
ε NOTE—Units information was editorially corrected and editorial changes were made throughout in September 2014.
1. Scope Retardant-Treated Wood for Fire Testing
E72Test Methods of Conducting Strength Tests of Panels
1.1 These test methods apply to trowel, roller, or spray
for Building Construction
appliedWater-resistivebarrier(WRB)coatingsthatareapplied
E96/E96MTest Methods for Water Vapor Transmission of
over exterior sheathing prior to application of EIFS or EIFS
Materials
with drainage wall claddings.
E330/E330MTest Method for Structural Performance of
1.2 Test methods for in place wall system and cladding
ExteriorWindows, Doors, Skylights and CurtainWalls by
related to tests such as fire resistance, wind load capability, air
Uniform Static Air Pressure Difference
barrier performance, and so forth. should also be considered
E331 Test Method for Water Penetration of Exterior
but are outside the scope of this document.
Windows, Skylights, Doors, and Curtain Walls by Uni-
1.3 The values stated in either SI units or inch-pound units form Static Air Pressure Difference
E631Terminology of Building Constructions
are to be regarded separately as standard. The values stated in
each system may not be exact equivalents; therefore, each E1233/E1233MTest Method for Structural Performance of
ExteriorWindows,Doors,Skylights,andCurtainWallsby
system shall be used independently of the other. Combining
values from the two systems may result in non-conformance Cyclic Air Pressure Differential
E2110Terminology for Exterior Insulation and Finish Sys-
with the standard.
tems (EIFS)
1.4 This standard does not purport to address all of the
E2134/E2134MTest Method for Evaluating the Tensile-
safety concerns, if any, associated with its use. It is the
Adhesion Performance of an Exterior Insulation and
responsibility of the user of this standard to establish appro-
Finish System (EIFS)
priate safety and health practices and determine the applica-
E2485/E2485MTest Method for Freeze/Thaw Resistance of
bility of regulatory limitations prior to use.
Exterior Insulation and Finish Systems (EIFS) and Water
Resistive Barrier Coatings
2. Referenced Documents
2.2 AATCC Standards:
2.1 ASTM Standards:
AATCC127Water Resistance: Hydrostatic Pressure Test
C297/C297MTest Method for Flatwise Tensile Strength of
Sandwich Constructions
3. Terminology
D2247Practice for Testing Water Resistance of Coatings in
3.1 Definitions related to EIFS may be found in Terminol-
100 % Relative Humidity
ogy E2110 and general terms in Terminology E631.
D2898 Practice for Accelerated Weathering of Fire-
4. Significance and Use
4.1 Thisseriesoftestmethodsprovidesameanstoevaluate
This test method is under the jurisdiction of ASTM Committee E06 on
Performance of Buildings and is the direct responsibility of Subcommittee E06.58 performance of the water-resistive barrier coating when sub-
on Exterior Insulation and Finish Systems (EIFS).
jected to various physical and environmental conditions. The
Current edition approved Sept. 1, 2014. Published September 2014. Originally
water-resistive barrier coating is applied between the EIFS and
approved in 2007. Last previous edition approved in 2007 as E2570–07. DOI:
10.1520/E2570_E2570M-07R14E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Available from American Association of Textile Chemists and Colorists
Standards volume information, refer to the standard’s Document Summary page on (AATCC), P.O. Box 12215, Research Triangle Park, NC 27709-2215, http://
the ASTM website. www.aatcc.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E2570/E2570M − 07 (2014)
substrate in an EIFS-clad wall assembly and is intended to spacedaminimumof406mm[16in.]oc.Attachthesheathing
provide additional protection to the building and its contents substrate to the framing and include 3.2 mm [ ⁄8 in.] wide
from incidental moisture intrusion that may occur through the vertical and horizontal substrate joints. Flashing shall also be
building envelope. Although protected from direct weather included in the sample preparation to ensure that the interface
exposure after the EIFS is installed, the coating must be of the water-resistive barrier coating and flashing will not be
durable and weather resistant as it is subjected to various affected by various loading conditions. Apply the joint
environmental conditions prior to application of the EIFS as treatments, if applicable, and water-resistive barrier coating to
well as while the system is in service. the sheathing and cured in accordance with the manufacturer’s
recommendations. The sheathing used in the test shall be the
5. Test Specimens least shear-resistant sheathing material to which application of
the water- resistive barrier coating is proposed for application.
5.1 Tensile Bond:
5.1.1 Prepare five samples for each sheathing substrate, a 5.6 Weathering (Ultraviolet Light Exposure, Wet/Dry
Cycling, and Hydrostatic Exposure):
minimum of 152 mm × 152 mm [6 in. × 6 in.], that consists of
two sheathing sections assembled with a 3.2 mm [ ⁄8 in.] wide 5.6.1 Prepare five samples, a minimum of 102 mm × 152
joint. Apply the joint treatment, if applicable, and water- mm [4 in. × 6 in.] containing a 6.4 mm [ ⁄4 in.] wide joint for
resistive barrier coating in accordance with the manufacturer’s each substrate.Apply the joint treatment, if applicable, and the
recommended instructions. water-resistive barrier coating to the substrate according to the
5.1.2 Test where the water resistive barrier is a system manufacturer’s recommended application instructions. Sheath-
composed of multiple products that overlap, the bond between ing specimens shall consist of two sheathing sections as-
water resistive barrier products. sembled with the 6.4 mm [ ⁄4 in.] wide joint. Seal the sides of
5.1.3 Prepare five specimens for each flashing material for the samples with material impervious to water that need not be
whichrecognitionissought,aminimumof51mm×51mm[2 the water resistive barrier coating.
in. × 2 in.] by applying the water-resistive barrier coating, and
the flashing treatment, to the flashing material. 6. Apparatus
5.2 Freeze Thaw:
6.1 The description of apparatus in this section is general in
5.2.1 Construct five samples for each sheathing substrate, a nature consequently any set up capable of performing the test
minimum of 152 mm × 152 mm [6 in. × 6 in.] that consists of
is acceptable.
two sheathing sections assembled with a 3.2 mm [ ⁄8 in.] wide
6.2 Tensile Bond:
joint. Apply the joint treatment, if applicable, and the water-
6.2.1 The apparatus shall be capable of subjecting the
resistive barrier coating in accordance with the manufacturer’s
specimen uniformly to test conditions described in Test
recommended instructions. The back and sides of the speci-
Method C297/C297M or Test Method E2134/E2134M.
mens shall be sealed with an impervious material that need not
6.3 Freeze Thaw:
bethecoating.Specimensshallberepresentativeofthoseused
6.3.1 Theapparatusshallbecapableofsubjectingspecimen
in actual construction.
uniformly to test conditions and cycles described in Test
5.3 Water Resistance:
Method E2485/E2485M.
5.3.1 Prepare three samples, a minimum of 102 mm × 152
1 6.4 Water Resistance:
mm [4 in. × 6 in.], and containing a 6.4 mm [ ⁄4 in.] wide joint
6.4.1 The apparatus shall be capable of subjecting the
foreachsubstratebyapplyingthejointtreatment,ifapplicable,
specimen uniformly to test conditions described in Practice
and the water-resistive barrier coating to the substrate accord-
D2247 for 14 days.
ing to the manufacturer’s recommended application instruc-
tions. The back and sides of the samples shall be sealed with
6.5 Water Vapor Transmission:
material impervious to water that need not be the water
6.5.1 The apparatus shall be capable of subjecting the
resistive barrier coating. Specimens shall be representative of
specimen uniformly to test conditions described in Test
those used in actual construction.
Method E72 and 8.4.1 of these test methods.
5.4 Water Vapor Transmission:
6.6 Durability (Transverse Load, Racking, Environmental
5.4.1 Prepare three samples, a minimum of 70 mm [2 ⁄4 in.]
Conditioning, and Water Penetration):
diameter of the water-resistive barrier coating by applying the
6.6.1 Transverse Load:
water-resistive barrier coating, at the recommended thickness,
6.6.1.1 The apparatus shall be capable of subjecting the
to a non-adhesive surface. After curing for the time recom-
specimen uniformly to test conditions described in Test
mended by the manufacturer, the coating is removed from the
Method E1233/E1233M and 8.5.1.1 of these test methods.
non-adhesive surface and the average thickness is determined
6.6.2 Racking:
from the material density, area, and weight or by using a
6.6.2.1 The apparatus shall be capable of subjecting the
micrometer or calipers to the nearest 0.025 mm [0.001 in.].
specimen uniformly to test conditions described in Test Meth-
ods E72 and 8.5.2.1 of these test methods.
5.5 Durability (Transverse Load, Racking, Environmental
Conditioning, and Water Penetration): 6.6.3 Environmental Conditioning:
5.5.1 Constructonesample,aminimumof2438mm×2438 6.6.3.1 Theapparatusforthewatersprayshallbecapableof
mm [8 ft × 8 ft] with either steel studs or2×4 wood studs uniformly wetting the entire panel surface. The apparatus for
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E2570/E2570M − 07 (2014)
radiantheatshallbecapableofproducingconditionsdescribed 8.5.2.1 Conducttestonthesametestspecimenaswastested
in 8.5.3.1 of these test methods. in8.5.1.ApplyloadinaccordancewithTestMethodsE72with
6.6.4 Water Penetration: or without hold downs. Load shall be applied until ⁄2 in. net
6.6.4.1 The apparatus shall be capable of subjecting the deflectionwithoutholddownsor3.2mm[ ⁄8in.]netdeflection
specimen uniformly to test conditions described in Test withholddownsisachieved.Asanalternative,applyloaduntil
Method E331 and 8.5.4.1 of these test methods. shear design value of sheathing is achieved except net deflec-
1 1
tion shall not exceed ⁄2 in. without hold downs or 3.2 mm [ ⁄8
6.7 Weathering:
in.] deflection with hold downs.
6.7.1 Ultraviolet Light Exposure:
8.5.2.2 Proceed with 8.5.3 if there is no cracking observed
6.7.1.1 The apparatus shall be capable of subjecting the
through visual examination of the water-resistive barrier coat-
specimen uniformly to test conditions described in Test Meth-
ing within the field of the panel, at substrate joints and at the
ods D2898, Method B and 8.6.1.1 of these test methods.
flashing interface.
6.7.2 Wet/Dry Cycling:
8.5.3 Environmental Conditioning:
6.7.2.1 The apparatus shall be capable of subjecting the
8.5.3.1 Conducttestonthesametestspecimenaswastested
specimen uniformly to test conditions described in 8.6.2 of
in 8.5.1 and 8.5.2. Subject entire exterior surface to five cycles
these test methods.
consistingof24huniformwatersprayand24hofradiantheat.
6.7.3 Hydrostatic Pressure:
Radiant heat shall be 49 6 3°C [120 6 5°F] as measured on a
6.7.3.1 The apparatus shall be capable of subjecting the
1 mm thick aluminum plate painted black and affixed to test
specimen uniformly to test conditions described in
surface at a minimum of four locations symmetrically located.
AATCC127 and 8.6.3.1 of these test methods.
8.5.3.2 Proceed with 8.5.4 if there is no cracking observed
7. Conditioning
through visual examination of the water-resistive barrier coat-
ing within the field of the panel, at substrate joints and at the
7.1 7.1 Dry or cure test samples a minimum of 28 days for
flashing interface.
cementitious materials and 7 days for acrylic materials under
ambient conditions prior to testing. 8.5.4 Water Penetration:
8.5.4.1 Conducttestonthesametestspecimenaswastested
8. Procedure
in 8.5.1, 8.5.2, and 8.5.3. Test sample in accordance with Test
8.1 Tensile Bond: Method E331, E631 at a minimum pressure difference of 137
8.1.1 Conduct tests in accordance with Test Methods C297/
kPa [2.86 psf] for a period of 15 minutes.
C297M or E2134/E2134M.
8.6 Weathering:
8.2 Freeze Thaw:
8.6.1 Ultraviolet Light Exposure:
8.2.1 Conduct tests in accordance with Section 9.2 of Test
8.6.1.1 Test specimens in accordance with Test Method
Method E2485/E2485M.
D2898 Method B except subject entire surface of specimens to
ultraviolet light without water spray for conditions for 210 h
8.3 Water Resistance:
(10 h per day for 21 days). Lamps and enclosure shall be
8.3.1 Conduct tests in accordance with Practice D2247 for
adjustedsothespecimentemperatureisbetween57°C[135°F]
14 days.
and 60°C [140°F].
8.3.2 Conduct periodic inspection of the samples. Testing
8.6.2 Wet/Dry Cycling:
may be concluded sooner if cracking, erosion or delamination
from the substrate is noted.
8.6.2.1 Conduct test on the same test specimens that were
tested in 8.6.1. Subject samples to 25 cycles of drying and
8.4 Water Vapor Transmission:
soaking as follows:
8.4.1 Conditionthesamplesat24 63°C[75 65°F]and50
(1)Oven dry at 49°C [120°F] for 3 h with all surfaces
6 5% relative humidity for 40 h prior to testing.
exposed.
8.4.2 Conduct tests in accordance with Section 12 of Test
(2)Immerse coating surface in room temperature water for
Method E96/E96M except place each cup in a room with
3h.
controlled conditions of 24 6 3°C [75 6 5°F] and 50%
(3)After removal from the water, blot specimens dry and
relative humidity.
then air dry for 18 h at 24 6 3°C [75 6 5°F] with all surfaces
8.5 Durability (Transverse Load, Racking, Environmental
exposed.
Conditioning, and Water Penetration):
8.6.3 Hydrostatic Pressure:
8.5.1 Transverse Load:
8.6.3.1 Conduct test on the same test specimens that were
8.5.1.1 Test specimen in accordance with Test Method
tested in 8.6.1 and 8.6.2. The samples shall be tested in
E1233/E1233M, E2110, Procedure A, using the load required
accordance with AATCC127 except that the specimens shall
to produce a mid-point deflection of the test panel measuring
beheldatahydrostaticheadof55cm[21.6in.]foraperiodof
8.13 mm [0.32 in.]. Repeat for 10 cycles.
5h.
8.5.1.2
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM 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.
´1
Designation: E2570 − 07 E2570/E2570M − 07 (Reapproved 2014)
Standard Test Methods for
Evaluating Water-Resistive Barrier (WRB) Coatings Used
under Exterior Insulation and Finish Systems (EIFS) or EIFS
with Drainage
This standard is issued under the fixed designation E2570;E2570/E2570M; 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.
ε NOTE—Units information was editorially corrected and editorial changes were made throughout in September 2014.
1. Scope
1.1 These test methods apply to trowel, roller, or spray applied Water-resistive barrier (WRB) coatings that are applied over
exterior sheathing prior to application of EIFS or EIFS with drainage wall claddings.
1.2 Test methods for in place wall system and cladding related to tests such as fire resistance, wind load capability, air barrier
performance, and so forth. should also be considered but are outside the scope of this document.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as the standard. The values given in
parentheses are for information only.stated in each system may not be exact equivalents; therefore, each system shall be used
independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 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
2.1 ASTM Standards:
C297/C297M Test Method for Flatwise Tensile Strength of Sandwich Constructions
D2247 Practice for Testing Water Resistance of Coatings in 100 % Relative Humidity
D2898 Practice for Accelerated Weathering of Fire-Retardant-Treated Wood for Fire Testing
E72 Test Methods of Conducting Strength Tests of Panels for Building Construction
E96/E96M Test Methods for Water Vapor Transmission of Materials
E330E330/E330M Test Method for Structural Performance of Exterior Windows, Doors, Skylights and Curtain Walls by
Uniform Static Air Pressure Difference
E331 Test Method for Water Penetration of Exterior Windows, Skylights, Doors, and Curtain Walls by Uniform Static Air
Pressure Difference
E631 Terminology of Building Constructions
E1233E1233/E1233M Test Method for Structural Performance of Exterior Windows, Doors, Skylights, and Curtain Walls by
Cyclic Air Pressure Differential
E2110 Terminology for Exterior Insulation and Finish Systems (EIFS)
E2134E2134/E2134M Test Method for Evaluating the Tensile-Adhesion Performance of an Exterior Insulation and Finish
System (EIFS)
E2485E2485/E2485M Test Method for Freeze/Thaw Resistance of Exterior Insulation and Finish Systems (EIFS) and Water
Resistive Barrier Coatings
This test method is under the jurisdiction of ASTM Committee E06 on Performance of Buildings and is the direct responsibility of Subcommittee E06.58 on Exterior
Insulation and Finish Systems (EIFS).
Current edition approved Sept. 1, 2007Sept. 1, 2014. Published September 2007September 2014. Originally approved in 2007. Last previous edition approved in 2007
as E2570–07. DOI: 10.1520/E2570-07.10.1520/E2570_E2570M-07R14E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 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 the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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E2570/E2570M − 07 (2014)
2.2 AATCC Standards:
AATCC 127 Water Resistance: Hydrostatic Pressure Test
3. Terminology
3.1 Definitions related to EIFS may be found in Terminology E2110 and general terms in Terminology E631.
4. Significance and Use
4.1 This series of test methods provides a means to evaluate performance of the water-resistive barrier coating when subjected
to various physical and environmental conditions. The water-resistive barrier coating is applied between the EIFS and substrate
in an EIFS-clad wall assembly and is intended to provide additional protection to the building and its contents from incidental
moisture intrusion that may occur through the building envelope. Although protected from direct weather exposure after the EIFS
is installed, the coating must be durable and weather resistant as it is subjected to various environmental conditions prior to
application of the EIFS as well as while the system is in service.
5. Test Specimens
5.1 Tensile BondBond:
5.1.1 Prepare five samples for each sheathing substrate, a minimum of 152 mm × 152 mm (6[6 in. × 6 in.),in.], that consists
of two sheathing sections assembled with a 3.2 mm ([ ⁄8 in.)in.] wide joint. Apply the joint treatment, if applicable, and
water-resistive barrier coating in accordance with the manufacturer’s recommended instructions.
5.1.2 Test where the water resistive barrier is a system composed of multiple products that overlap, the bond between water
resistive barrier products.
5.1.3 Prepare five specimens for each flashing material for which recognition is sought, a minimum of 51 mm × 51 mm (2[2
in. × 2 in.)in.] by applying the water-resistive barrier coating, and the flashing treatment, to the flashing material.
5.2 Freeze ThawThaw:
5.2.1 Construct five samples for each sheathing substrate, a minimum of 152 mm × 152 mm (6[6 in. × 6 in.)in.] that consists
of two sheathing sections assembled with a 3.2 mm ([ ⁄8 in.)in.] wide joint. Apply the joint treatment, if applicable, and the
water-resistive barrier coating in accordance with the manufacturer’s recommended instructions. The back and sides of the
specimens shall be sealed with an impervious material that need not be the coating. Specimens shall be representative of those used
in actual construction.
5.3 Water ResistanceResistance:
5.3.1 Prepare three samples, a minimum of 102 mm × 152 mm (4[4 in. × 6 in.),in.], and containing a 6.4 mm ([ ⁄4 in.)in.] wide
joint for each substrate by applying the joint treatment, if applicable, and the water-resistive barrier coating to the substrate
according to the manufacturer’s recommended application instructions. The back and sides of the samples shall be sealed with
material impervious to water that need not be the water resistive barrier coating. Specimens shall be representative of those used
in actual construction.
5.4 Water Vapor TransmissionTransmission:
5.4.1 Prepare three samples, a minimum of 70 mm (2[2 ⁄4 in.)in.] diameter of the water-resistive barrier coating by applying the
water-resistive barrier coating, at the recommended thickness, to a non-adhesive surface. After curing for the time recommended
by the manufacturer, the coating is removed from the non-adhesive surface and the average thickness is determined from the
material density, area, and weight or by using a micrometer or calipers to the nearest 0.025 mm (0.001 in.).[0.001 in.].
5.5 Durability (Transverse Load, Racking, Environmental Conditioning, and Water Penetration)Penetration):
5.5.1 Construct one sample, a minimum of 2438 mm × 2438 mm (8[8 ft × 8 ft)ft] with either steel studs or 2 × 4 wood studs
spaced a minimum of 406 mm (16 in.)[16 in.] oc. Attach the sheathing substrate to the framing and include 3.2 mm ([ ⁄8 in.)in.]
wide vertical and horizontal substrate joints. Flashing shall also be included in the sample preparation to ensure that the interface
of the water-resistive barrier coating and flashing will not be affected by various loading conditions. Apply the joint treatments,
if applicable, and water-resistive barrier coating to the sheathing and cured in accordance with the manufacturer’s recommenda-
tions. The sheathing used in the test shall be the least shear-resistant sheathing material to which application of the water- resistive
barrier coating is proposed for application.
5.6 Weathering (Ultraviolet Light Exposure, Wet/Dry Cycling, and Hydrostatic Exposure)Exposure):
5.6.1 Prepare five samples, a minimum of 102 mm × 152 mm (4[4 in. × 6 in.)in.] containing a 6.4 mm ([ ⁄4 in.)in.] wide joint
for each substrate. Apply the joint treatment, if applicable, and the water-resistive barrier coating to the substrate according to the
manufacturer’s recommended application instructions. Sheathing specimens shall consist of two sheathing sections assembled with
the 6.4 mm ([ ⁄4 in.)in.] wide joint. Seal the sides of the samples with material impervious to water that need not be the water
resistive barrier coating.
Available from American Association of Textile Chemists and Colorists (AATCC), P.O. Box 12215, Research Triangle Park, NC 27709,27709-2215, http://
www.aatcc.org.
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E2570/E2570M − 07 (2014)
6. Apparatus
6.1 The description of apparatus in this section is general in nature consequently any set up capable of performing the test is
acceptable.
6.2 Tensile BondBond:
6.2.1 The apparatus shall be capable of subjecting the specimen uniformly to test conditions described in Test Method
C297/C297M or Test Method E2134E2134/E2134M.
6.3 Freeze ThawThaw:
6.3.1 The apparatus shall be capable of subjecting specimen uniformly to test conditions and cycles described in Test Method
E2485E2485/E2485M.
6.4 Water ResistanceResistance:
6.4.1 The apparatus shall be capable of subjecting the specimen uniformly to test conditions described in Practice D2247 for
14 days.
6.5 Water Vapor TransmissionTransmission:
6.5.1 The apparatus shall be capable of subjecting the specimen uniformly to test conditions described in Test Method E72 and
8.4.1 of this standard.these test methods.
6.6 Durability (Transverse Load, Racking, Environmental Conditioning, and Water Penetration)Penetration):
6.6.1 Transverse LoadLoad:
6.6.1.1 The apparatus shall be capable of subjecting the specimen uniformly to test conditions described in Test Method
E1233E1233/E1233M and 8.5.1.1 of this standard.these test methods.
6.6.2 RackingRacking:
6.6.2.1 The apparatus shall be capable of subjecting the specimen uniformly to test conditions described in Test Methods E72
and 8.5.2.1 of this standard.these test methods.
6.6.3 Environmental ConditioningConditioning:
6.6.3.1 The apparatus for the water spray shall be capable of uniformly wetting the entire panel surface. The apparatus for
radiant heat shall be capable of producing conditions described in 8.5.3.1 of this standard. these test methods.
6.6.4 Water PenetrationPenetration:
6.6.4.1 The apparatus shall be capable of subjecting the specimen uniformly to test conditions described in Test Method E331
and 8.5.4.1 of this standard.these test methods.
6.7 WeatheringWeathering:
6.7.1 Ultraviolet Light ExposureExposure:
6.7.1.1 The apparatus shall be capable of subjecting the specimen uniformly to test conditions described in Test Methods D2898,
Method B and 8.6.1.1 of this standard.these test methods.
6.7.2 Wet/Dry CyclingCycling:
6.7.2.1 The apparatus shall be capable of subjecting the specimen uniformly to test conditions described in 8.6.2 of this
standard.these test methods.
6.7.3 Hydrostatic PressurePressure:
6.7.3.1 The apparatus shall be capable of subjecting the specimen uniformly to test conditions described in AATCC 127 and
8.6.3.1 of this standard.these test methods.
7. Conditioning
7.1 7.1 Dry or cure test samples a minimum of 28 days for cementitious materials and 7 days for acrylic materials under ambient
conditions prior to testing.
8. Procedure
8.1 Tensile BondBond:
8.1.1 8.1.1 Conduct tests in accordance with Test Methods C297/C297M or E2134E2134/E2134M.
8.2 Freeze ThawThaw:
8.2.1 Conduct tests in accordance with Section 9.2 of Test Method E2485E2485/E2485M.
8.3 Water ResistanceResistance:
8.3.1 Conduct tests in accordance with Practice D2247 for 14 daysdays.
8.3.2 Conduct periodic inspection of the samples. Testing may be concluded sooner if cracking, erosion or delamination from
the substrate is noted.
8.4 Water Vapor TransmissionTransmission:
8.4.1 Condition the samples at 24°C24 6 3°C (75°F[75 6 5°F)5°F] and 50 %50 6 5 % relative humidity for 40 hoursh prior
to testing.
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E2570/E2570M − 07 (2014)
8.4.2 Conduct tests in accordance with Section 12 of Test Method E96/E96M except place each cup in a room with controlled
conditions of 24°C24 6 3°C ( 75°F [75 6 5°F)5°F] and 50 % relative humidity.
8.5 Durability (Transverse Load, Racking, Environmental Conditioning, and Water Penetration)Penetration):
8.5.1 Transverse LoadLoad:
8.5.1.1 Test specimen in accordance with Test Method E1233E1233/E1233M, E2110, Procedure A, using the load required to
produce a mid-point deflection of the test panel measuring 8.13 mm (0.32 in.).[0.32 in.]. Repeat for 10 cycles.
8.5.1.2 Proceed with 8.5.2 if there is no cracking observed through visual examination of the water-resistive barrier coating
within the field of the panel, at substrate joints and at the flashing interface.
8.5.2 RackingRacking:
8.5.2.1 Conduct test on the same test specimen as was tested in 8.5.1. Apply load in accordance with Test Methods E72 with
1 1
or without hold downs. Load shall be applied until ⁄2 in. net deflection without hold downs or 3.2 mm ([ ⁄8 in.)in.] net deflection
with hold downs is achieved. As an alternative, apply load until shear design value of sheathing is achieved except net deflection
1 1
shall not exceed ⁄2 in. without hold downs or 3.2 mm ([ ⁄8 in.)in.] deflection with hold downs.
8.5.2.2 Proceed with 8.5.3 if there is no cracking observed through visual examination of the water-resistive barrier coating
within the field of the panel, at substrate joints and at the flashing interface.
8.5.3 Environmental ConditioningConditioning:
8.5.3.1 Conduct test on the same test specimen as was tested in 8.5.1 and 8.5.2. Subject entire exterior surface to five cycles
consisting of 24 hoursh uniform water spray and 24 hoursh of radiant heat. Radiant heat shall be 49°C49 6 3°C (120°F[120 6
5°F)5°F] as measured on a 1 mm thick aluminum plate painted black and affixed to test surface at a minimum of four locations
symmetrically located.
8.5.3.2 Proceed with 8.5.4 if there
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