1、Designation: E2273 18Standard Test Method forDetermining the Drainage Efficiency of Exterior Insulationand Finish Systems (EIFS) Clad Wall Assemblies1This standard is issued under the fixed designation E2273; the number immediately following the designation indicates the year oforiginal adoption or,
2、 in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method determines the drainage efficiency ofEIFS clad wall assemblies
3、when subjected to a water spray ratein accordance with Test Method E331.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are mathematicalconversions to inch-pound units that are provided for informa-tion only and are not considered standard.1.3 Thi
4、s standard may involve hazardous materials, opera-tions and equipment. This standard does not purport to addressall of the safety concerns, if any, associated with its use. It isthe responsibility of the user of this standard to establishappropriate safety, health, and environmental practices anddet
5、ermine the applicability of regulatory limitations prior touse.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendati
6、ons issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2E331 Test Method for Water Penetration of ExteriorWindows, Skylights, Doors, and Curtain Walls by Uni-form Static Air Pressure DifferenceE2110 Terminology for Exterior Ins
7、ulation and Finish Sys-tems (EIFS)3. Terminology3.1 Definitions used in this standard shall be in accordancewith Terminology E2110.3.2 Definitions of Terms Specific to This Standard:3.2.1 drainage effciencya percentage value based on theamount of water that passed through the test specimen and wasco
8、llected divided by the amount of water sprayed into the slotfault.3.2.2 test specimenthe entire assembled unit submitted fortesting as described in Section 7.3.2.3 test specimen slot faultan opening in the test speci-men where the insulation board, and other components havebeen removed exposing the
9、weather-resistive barrier to whichwater spray is directed.3.2.4 water drainagethe ability of the test specimen todrain water.4. Summary of Test Method4.1 This test method consists of sealing a spray box to thetest specimen and then concentrating a water spray into the slotfault of the test specimen.
10、5. Significance and Use5.1 This test method is a standard procedure for determiningthe drainage efficiency of an EIFS clad wall assembly.6. Apparatus6.1 Spray Box, a transparent plastic, or equivalent, boxmeasuring 622 by 241 by 184 mm (2412 by 912 by 714 in.)containing a water spray system that is
11、sealed to the testspecimen.6.2 Water Spray System, two spray nozzles installed in thespray box, oriented to apply all the water into the slot fault andlocated 13 mm (12 in.) from the open side of the spray box and150 mm (6 in.) to the right and left of vertical center of the slotfault.Apressure regu
12、lator, flow meter, and an inline water filterto the spray nozzles control the flow rate of water sprayed intothe slot fault. The water spray system shall deliver water at arate of 106 g (0.234 lb) per minute +10%0%.6.3 Drained Water Container(s), a container, or containers,tared to the nearest 1.0 g
13、 (0.002 lb) of sufficient size to retainthe water drained from the test specimen.6.4 Balance, with a capacity of 20 kg (45 lb) and accuracyof 1.0 g (0.002 lb).1This test method is under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and is the direct responsibility of Subcommittee
14、 E06.58on Exterior Insulation and Finish Systems (EIFS).Current edition approved Sept. 1, 2018. Published September 2018. Originallyapproved in 2003. Last previous edition approved in 2011 as E227303 (2011).DOI: 10.1520/E227318.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or
15、contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international s
16、tandard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.16.
17、5 A means of collection such as a trough, to direct thedrained water to the drained water container. The collectionmethod may also be the tared container.7. Calibration of Flow Rate7.1 Collect the water from the water spray system in a taredcontainer for a period of 15 min. Obtain the weight of thec
18、ollected water and adjust the flow rate if necessary to obtaina weight of water of 1590 g (3.5 lb) to 1745 g (3.8 lb). Multiplythis weight by 5 to obtain the amount of water that is deliveredto the test specimen and report it in 10.1.7.8. Test Specimen8.1 The EIFS clad wall assembly test specimen sh
19、all be aminimum of 1220 mm (48 in.) by 2440 mm (96 in.).8.2 The test specimen shall consist of the same materialsand details, and be prepared by the same methods as used inactual construction.8.3 A 51 mm (2 in.) by 610 mm (24 in.) slot fault shall beconstructed in the insulation board, lamina, and o
20、ther compo-nents at a distance of 304 mm (12 in.) from the top of the slotfault to the top of the test specimen so that the weather resistivebarrier is exposed. The slot fault shall be centered on thevertical center line of the panel. The top and sides of the testspecimen shall be sealed at the inte
21、rface of the insulation boardand substrate. This can be accomplished by edge wrapping thetest specimen with base coat and reinforcing mesh. Theinsulation board edge around the perimeter of the slot faultshall be exposed. See Fig. 1.8.4 The EIFS clad wall assembly shall be cured for aminimum of 28 da
22、ys prior to testing.9. Test Procedure9.1 Photograph the test set-up.9.2 Mount and seal the spray box to the test specimen insuch a manner that all water enters the slot fault. Center thespray box with the bottom edge of the spray box even with thebottom edge of the slot fault. Position the test spec
23、imen verticaland plumb.FIG. 1 EIFS Test SpecimenE2273 1829.3 Place the means of water collection or the tared con-tainer on a scale balance at the base of the test specimen inorder to collect and weigh the drained water.9.4 Begin water spray and start time.9.5 Observe if water build-up occurs in the
24、 spray box andreport duration and depth.9.6 Record the weight of drained water at 15 min intervals(5 times during the test period) to the nearest 1.0 g (0.002 lb).9.7 After 75 min terminate the water spray.9.8 Continue to collect water for 60 min after termination ofwater spray. Weigh the container(
25、s) of drained water andcalculate the total weight of drained water.10. Report10.1 At a minimum, include the following information inthe report:10.1.1 Date of test and report.10.1.2 Identification of test specimen to includemanufacturer, materials, construction details, dimensions, ap-plication instr
26、uctions, literature and other pertinent informa-tion.10.1.3 Detailed drawings of the test specimen providing adescription of the EIFS clad wall assembly.10.1.4 The rate of water spray.10.1.5 The weight of water collected at each 15-min inter-vals.10.1.6 Total weight of water collected after 60-min d
27、rainingperiod.10.1.7 Total weight of water sprayed into the slot fault.10.1.8 The drainage efficiency of the test specimen.10.1.8.1 EIFS clad wall assembly Drainage Efficiency(%) = (Total weight of collected water Total weight of waterdelivered to the test specimen) 100.10.1.9 Any water leakage thro
28、ugh the back of the testspecimen.10.1.10 Photographs.10.1.11 Duration and depth of water build-up in the spraybox.11. Precision and Bias11.1 An interlaboratory study (ILS) of this test method isbeing conducted. Precision and bias statements will be insertedinto this test method upon completion of th
29、e study which isexpected in 2019.12. Keywords12.1 drainage; drainage efficiency; drainage performance;EIFS; EIFS clad wall assembly; exterior insulation and finishsystemASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin
30、this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must
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