1、Designation:D4811/D4811M16Standard Specification forNonvulcanized(Uncured)Rubber Sheet Used as RoofFlashing1This standard is issued under the fixed designation D4811/D4811M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of
2、last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers nonvulcanized(uncured)rub-ber sheet made of EPDM(ethylene-propylene-diene terpoly-mer)or CR(polyc
3、hloroprene)intended for use as watertightroof flashing exposed to the weather.1.2 The tests and property limits used to characterize theseflashing materials are specific for each classification and areminimum values to make the product fit for its intendedpurpose.1.3 The values stated in either SI u
4、nits or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.4 In-place roof system de
5、sign criteria,such as fireresistance,field seaming strength,material compatibility,anduplift resistance,among others,are beyond the scope of thisspecification.1.5 The following precautionary caveat pertains to the testmethods portion only,Section 8,of this specification:Thisstandard may involve haza
6、rdous materials,operations,andequipment.This standard does not purport to address thesafety concerns associated with its use.It is the responsibilityof the user of this standard to establish appropriate safety andhealth practices and determine the applicability of regulatorylimitations prior to use.
7、2.Referenced Documents2.1 ASTM Standards:2D412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD471 Test Method for Rubber PropertyEffect of LiquidsD518 Test Method for Rubber DeteriorationSurfaceCracking(Withdrawn 2007)3D573 Test Method for RubberDeterioration in an AirOvenD6
8、24 Test Method for Tear Strength of Conventional Vul-canized Rubber and Thermoplastic ElastomersD1079 Terminology Relating to Roofing and WaterproofingD1149 Test Methods for Rubber DeteriorationCracking inan Ozone Controlled EnvironmentD1204 Test Method for Linear Dimensional Changes ofNonrigid Ther
9、moplastic Sheeting or Film at ElevatedTemperatureD1418 PracticeforRubberandRubberLaticesNomenclatureD2137 Test Methods for Rubber PropertyBrittleness Pointof Flexible Polymers and Coated FabricsD3182 Practice for RubberMaterials,Equipment,and Pro-cedures for Mixing Standard Compounds and PreparingSt
10、andard Vulcanized SheetsG151 Practice for Exposing Nonmetallic Materials inAccel-erated Test Devices that Use Laboratory Light SourcesG154 Practice for Operating Fluorescent Ultraviolet(UV)Lamp Apparatus for Exposure of Nonmetallic MaterialsG155 Practice for Operating Xenon Arc Light Apparatus forEx
11、posure of Non-Metallic Materials3.Classification3.1 The following types are used to identify the principalpolymer components of the flashing material(see Note 1):3.1.1 TypeIEthylene-Propylene-DieneTerpolymer(EPDM).3.1.2 Type IIChloroprene Polymer(CR).NOTE1For definitions of polymer types,see Practic
12、e D1418.Fordefinitions of terms related to roofing,see Terminology D1079.3.2 The following classes describe the ability to vulcanizeon the roof:3.2.1 Class VVulcanizing.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of
13、 Subcommittee D08.18on Nonbituminous Organic Roof Coverings.Current edition approved Aug.1,2016.Published August 2016.Originallyapproved in 1990.Last previous edition approved in 2013 as D4811/D4811M 06(2013)1.DOI:10.1520/D4811_D4811M-16.2For referenced ASTM standards,visit the ASTM website,www.astm
14、.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor
15、 Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 3.2.2 Class NVNonvulcanizing.NOTE2Class V compounds continue to vulcanize(that is,cure)afteremplacement on the roof.Class NV indicates non-vulcanizable com-pounds.4.Materials and Manufacture4.1 The flashing material shall be formulate
16、d from theappropriate polymer type and other compounding ingredients.The principal polymer in the flashing material shall be one ofthose listed in 3.1 and greater than 95%of the total polymer.4.2 The flashing material shall be capable of being bondedto itself,to the roofing membrane,and to substrate for makingwatertight field splices and repairs.The manufacturer orfabricator shall recommend suitable bonding methods andmaterials.5.Physical Property Requirements5.1 Class V flashing material shall
