1、Designation: E2556/E2556M 10E2556/E2556M 10 (Reapproved 2016)Standard Specification forVapor Permeable Flexible Sheet Water-Resistive BarriersIntended for Mechanical Attachment1This standard is issued under the fixed designation E2556/E2556M; the number immediately following the designation indicate
2、s the yearof 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. Scope1.1 This specification is limited to vapor permeab
3、le flexible sheet materials which are intended to be mechanically attached andare generally installed behind the cladding system in exterior walls.1.2 This specification is limited to the evaluation of materials and does not address installed performance. Although thefastening practices (type of fas
4、tener, fastening schedule, etc.) may affect the installed function of these materials, they are notincluded in this specification.1.3 This specification does not address integration of the water-resistive barrier with other wall elements. The topic is addressedin more detail in Practice E2112 and Gu
5、ide E2266.1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conf
6、ormance with the standard.1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prio
7、r to use.2. Referenced Documents2.1 ASTM Standards:2D226D226/D226M Specification for Asphalt-Saturated Organic Felt Used in Roofing and WaterproofingD779 Test Method for Determining the Water Vapor Resistance of Sheet Materials in Contact with Liquid Water by the DryIndicator MethodD828 Test Method
8、for Tensile Properties of Paper and Paperboard Using Constant-Rate-of-Elongation ApparatusD882 Test Method for Tensile Properties of Thin Plastic SheetingD4869D4869/D4869M Specification for Asphalt-Saturated Organic Felt Underlayment Used in Steep Slope RoofingD5034 Test Method for Breaking Strength
9、 and Elongation of Textile Fabrics (Grab Test)E96/E96M Test Methods for Water Vapor Transmission of MaterialsE631 Terminology of Building ConstructionsE1677 Specification for Air Barrier (AB) Material or System for Low-Rise Framed Building WallsE2112 Practice for Installation of Exterior Windows, Do
10、ors and SkylightsE2128 Guide for Evaluating Water Leakage of Building WallsE2136 Guide for Specifying and Evaluating Performance of Single Family Attached and Detached DwellingsDurabilityE2266 Guide for Design and Construction of Low-Rise Frame Building Wall Systems to Resist Water IntrusionG154 Pra
11、ctice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Nonmetallic Materials1 This specification is under the jurisdiction of ASTM Committee E06 on Performance of Buildings and is the direct responsibility of Subcommittee E06.55 on ExteriorBuilding Wall SystemsPerformance of
12、 Building Enclosures.Current edition approved Oct. 15, 2010Dec. 1, 2016. Published November 2010December 2016. Originally approved in 2009. Last previous edition approved in 20092010as E2556/E2556M - 09.E2556/E2556M -10. DOI: 10.1520/E2556_E2556M-10. 10.1520/E2556_E2556M-10R16.2 For referencedASTM s
13、tandards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of a
14、n ASTM standard an indication of what changes have been made to the previous version. Becauseit 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 versionof the standard as publi
15、shed by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States12.2 Other Standards:AATCC Test Method 127 Water Resistance: Hydrostatic Pressure Test3CGSB CAN2-51.32.M77 Sheathing Membrane, Breat
16、her Type4Federal Specification UU-B-790a Federal Specification Building Paper, Vegetable Fiber (Kraft, Waterproofed, Water Repellentand Fire Resistant)53 Available from American Association of Textile Chemists and Colorists (AATCC), P.O. Box 12215, Research Triangle Park, NC 27709,27709-2215, http:/
17、www.aatcc.org.4 Available from Canadian General Standards Board (CGSB), 11 Laurier St., Phase III, Place du Portage, Gatineau, Quebec K1A 1G6,0S5, Canada, http:/www.tpsgc-pwgsc.gc.ca/cgsb.http:/www.tpsgc-pwgsc.gc.ca/ongc-cgsb.5 Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Se
18、ction D, DLA Document Services, Building 4/D, 700 Robbins Ave., Philadelphia, PA19111-5098, http:/dodssp.daps.dla.mil.19111-5094, http:/quicksearch.dla.mil.E2556/E2556M 10 (2016)2TAPPI T-410 Test Method for Grammage of Paper and Paperboard (Weight Per Unit Area)6UBC Standard 14-1 Kraft Waterproof Bu
19、ilding Paper7UBC Standard 32-1 Asphalt Saturated Rag Felt7ICC-ES Acceptance Criteria AC38 for Water-Resistive Barriers83. Terminology3.1 DefinitionsFor definitions of general terms related to building construction used in this specification, refer to TerminologyE631.3.2 Definitions of Terms Specific
20、 to This Standard:3.2.1 felt-based barrier, nasphalt-saturated organic felts that comply with Specification D226D226/D226M and are intendedfor use as water-resistive barriers.3.2.2 paper-based barrier, nbuilding papers composed predominantly of sulfate pulp fibers that comply with FederalSpecificati
21、on UU-B-790a and that are intended for use as water-resistive barriers.3.2.3 polymer-based barrier, nplastic sheet materials for use as water-resistive barriers. These materials are generally referredto as a housewrap or building wrap. These materials can be perforated with small holes or may be non
22、-perforated, composed offilms or non-woven materials.3.2.4 Type I WRB, nwater-resistive barrier with base-level water resistance (see Table 1).3.2.5 Type II WRB, nwater-resistive barrier with enhanced water resistance (see Table 1).3.2.6 Water-Resistive Barrier (WRB), na material that is intended to
23、 resist liquid water that has penetrated the claddingsystem.NOTE 1Wall assemblies often include two lines of defense against rain water ingress. The cladding serves as the first line of defense and thewater-resistive barrier as the second line of defenseNOTE 2Water-resistive barriers are sometimes r
24、eferred to as weather resistant barriers or sheathing membranes.4. Classification4.1 This specification covers vapor permeable flexible sheet materials that are classified as Type I and Type II, which aredetermined by the degree of water resistance. The water-resistive barrier material composition s
25、hall determine the specific testmethod used to measure physical and mechanical properties (see Table 1). Appendix X1 provides explanatory information on thephysical and mechanical property test methods.5. Materials and Manufacture5.1 Description of the material composition and structure shall be mad
26、e available upon request.5.1.1 Descriptions of the materials shall include roll weight and dimensions.5.1.2 Descriptions of the material composition shall include linear density (basis weight). Basis weight shall be measured usingTAPPI T-410.6. Performance Requirements6.1 All products seeking compli
27、ance with this specification shall conform to the minimum performance requirements listed inTable 1. Sampling and specimen size shall be in accordance with the referenced test methods. If not otherwise specified in thereferenced test method, a minimum of five specimens shall be tested and all specim
28、ens shall meet the minimum performancerequirements.NOTE 3The laboratory accelerated-ultraviolet (UV)/condensation exposure procedure specified in A1.2 is not intended to represent a specific serviceexposure. It is a method of comparing the stability of materials under consistent laboratory exposure
29、conditions.7. Other Requirements7.1 The material shall not adhere to itself to an extent that will cause tearing or other damage on unrolling.8. Sampling8.1 The product to be tested for conformance to this specification shall be taken directly from a randomly selected roll whichis representative of
30、commercial product.6 Available from TechnicalTechnologicalAssociation of the Pulp and Paper Industry (TAPPI), 15 Technology Parkway South, Norcross, Suite 115, Peachtree Corners, GA30092, http:/www.tappi.org.7 Uniform Building Code (UBC) information is available from International Code Council (ICC)
31、, 500 New Jersey Ave., NW, 6th Floor, Washington, DC20001-2070,20001, http:/www.iccsafe.org.8 Available from the ICC Evaluation Service (ICC-ES), 5360 Workman Mill Road, Whittier, CA 90601,3060 Saturn Street, Suite 100, Brea, CA 92821,http:/www.icc-es.org.E2556/E2556M 10 (2016)38.2 The specimens sha
32、ll be cut from the interior of the sample roll so that no specimen edge is nearer than 75 mm (3 in.) 3 in.to the original sample edge.8.3 Unless otherwise stated, all specimens to be tested shall be conditioned for a minimum period of 40 h at 23 6 2C (73.46 4F) 2 C 73.4 6 4 F and 50 6 5 % relative h
33、umidity (RH).9. Marking and Labeling9.1 The finished product shall be marked or labeled with product identification.9.2 Installation instructions shall be provided and shall include as a minimum the maximum weather exposure time allowedbefore cladding shall be installed, type of mechanical fastener
34、and minimum fastener spacing to attach the WRB to the underlyingstructure, and lapping and taping requirements. This information shall be recorded and reported in any applicable test report orproduct rating.10. Keywords10.1 building felt; building paper; building wrap; housewrap; sheathing membrane;
35、 water-resistive barrier; weather-resistivebarrierTABLE 1 Requirements for Water Resistive BarriersTest Requirement Specimen Type Test Method Minimum Performance RequirementsType I Type IITest Requirement Specimen Type Test Method Minimum Performance RequirementsType I Type IIDry tensilestrength or
36、drybreaking force(choose 1)(1) asmanufacturedand(2) aged inaccordancewith A1.2Test Method D828 for paperand felt materials, or3500 N/m (20 lb/in.) minimum (machine and cross direction)Dry tensile strengthor dry breakingforce (choose1)(1) asmanufacturedand(2) aged in accordancewith A1.2Test Method D8
37、28 for paperand felt materials, or3500 N/m 20 lb/in. minimum (machine and cross direction)Test Methods D882 forpolymeric materials, or3500 N/m (20 lb/in.) minimum (machine and cross direction)Test Method D882 forpolymeric materials, or3500 N/m 20 lb/in. minimum (machine and cross direction)Test Meth
38、od D5034(GrabMethod)178 N (40 lbf) minimum (machine direction)Test Method D5034(GrabMethod)178 N 40 lbf minimum (machine direction)156 N (35 lbf) minimum (cross direction)156 N 35 lbf minimum (cross direction)Water resistancetest (choose 1)(1) asmanufacturedand(2) aged inaccordancewith A1.2Test Meth
39、od D779, or 10 min minimum 60 min minimumWater resistancetest (choose 1)(1) as manufacturedand(2) aged in accordancewith A1.2Test Method D779, or 10 minWater Resistance PondingTest (A1.1), orNo water shallthe membraneAATCC Test Method 127except that the speci-mensshall be held at ahydrostatic head o
40、f55 cm (21.6 in.)not applicable No leakage is permitted to the undersideof any specimen in 5 hAATCC Test Method 127except that the speci-mensshall be held at ahydrostatic head of55 cm 21.6 in.not applicable No leakage is permitted tothe undersideof any specimen in 5 hWater vaportransmissiontestas re
41、ceived Test Method E96/E96M(Dessicant Method)290 ng/(Pa s m2) (5 perms) minimumWater vaportransmissiontestas received Test Methods E96/E96M(Dessicant Method)290 ng/(Pa s m2) (5 perms) minimumPliability test as received see A1.3 The material shall not crack when bent over a 1.6 mm (116-in.)diameter m
42、andrel at a temperature of 0C (32F)Pliability test as received see A1.3 The material shall not crack when bent over a 1.6 mm 116-in.diameter mandrel at a temperature of 0 C 32 FE2556/E2556M 10 (2016)4ANNEX(Mandatory Information)A1. TEST METHODS AND PRACTICESA1.1 Water Resistance Ponding TestA1.1.1 S
43、copeThis is a test method intended for evaluating the water resistance of a Type I water-resistive barrier.A1.1.2 Significance and UseThis method is for use with water-resistive barriers.A1.1.3 Procedure:A1.1.3.1 Five specimens will be chosen at random from the material supplied.A1.1.3.2 A ring shal
44、l be constructed with a sample of the membrane fastened between two 200-mm (8-in.)8-in. diameteraluminum rings using a rubber-type gasket. The membrane shall be placed between the rings and cupped to permit a depth of 25mm (1 in.)1 in. of water to be exposed to 16 000 mm16 000 mm2 (25 in. 25 in.2) o
45、f its surface.A1.1.3.3 Distilled water shall be poured into the cylinder to a depth of 25 mm (1 in.).1 in.A1.1.3.4 The ring shall be raised by 250 mm (9.8 in.)9.8 in. above a sheet of plain kraft paper placed underneath the membraneto aid in monitoring any passage of water.A1.1.3.5 The membrane shal
46、l be maintained at constant conditions of temperature (23 6 2C (73.4 6 4F) 2 C 73.4 6 4 F)and RH (50 6 5 %) and be inspected at frequent intervals over a period of 2 h for water passage through the barrier material.A1.1.4 Report:A1.1.4.1 The report shall include the following:(1) The material and th
47、e side tested.(2) The material sampling procedure used.(3) Pass/fail test results for each specimen tested.(4) Any modification to the method.A1.1.5 Precision and BiasNo information is presented about either the precision or bias of this test method for evaluating waterresistance since the test resu
48、lt is nonquantitative.A1.2 Accelerated Aging (UV Exposure and Cyclic Drying/Wetting)A1.2.1 ScopeThis practice is used to condition samples of water-resistive barriers to evaluate degradation of performance dueto accelerated aging (UV exposure and dry/wet cycling).A1.2.2 Significance and UseThis prac
49、tice is not intended to represent a service exposure. It is a method of comparing thestability of materials under consistent laboratory exposure conditions.A1.2.3 Procedure:A1.2.3.1 Three samples shall be conditioned at 23 6 2C (73 6 4F) 2 C 73 6 4 F and 50 6 5 % RH for a minimum of 40h. One sample shall be used for preparing unexposed specimens as a control. Two samples shall be exposed to UV radiation,followed by exposure to drying and wetting cycles in accordance with A1.2.3.2 of this specific
