1、Designation: D 4811 06Standard Specification forNonvulcanized (Uncured) Rubber Sheet Used as RoofFlashing1This standard is issued under the fixed designation D 4811; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last
2、revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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
3、(polychloroprene) 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 SI units shall be used in
4、 referee decisions.1.4 In-place roof system design criteria, such as fire resis-tance, field seaming strength, material compatibility, and upliftresistance, among others, are beyond the scope of this speci-fication.1.5 The following precautionary caveat pertains to the testmethods portion only, Sect
5、ion 8, of this specification: Thisstandard may involve hazardous 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 det
6、ermine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 412 Test Methods for Vulcanized Rubber and Thermo-plastic ElastomersTensionD 471 Test Method for Rubber PropertyEffect of LiquidsD 518 Test Method for Rubber DeteriorationSurfaceCrackingD 573
7、Test Method for RubberDeterioration in an AirOvenD 624 Test Method for Tear Strength of ConventionalVulcanized Rubber and Thermoplastic ElastomersD 1079 Terminology Relating to Roofing and Waterproof-ingD 1149 Test Method for Rubber DeteriorationSurfaceOzone Cracking in a ChamberD 1204 Test Method f
8、or Linear Dimensional Changes ofNonrigid Thermoplastic Sheeting or Film at ElevatedTemperatureD 1418 Practice for Rubber and Rubber LaticesNomenclatureD 2137 Test Methods for Rubber PropertyBrittlenessPoint of Flexible Polymers and Coated FabricsD 3182 Practice for RubberMaterials, Equipment, andPro
9、cedures for Mixing Standard Compounds and Prepar-ing Standard Vulcanized SheetsG 151 Practice for Exposing Nonmetallic Materials in Ac-celerated Test Devices that Use Laboratory Light SourcesG 154 Practice for Operating Fluorescent Light Apparatusfor UV Exposure of Nonmetallic MaterialsG 155 Practic
10、e for Operating Xenon Arc Light Apparatusfor Exposure 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 Type IEthylene-Propylene-Diene Terpolymer(EPDM).3.1.2 Type IIChloroprene Polymer (C
11、R).NOTE 1For definitions of polymer types, see Practice D 1418. Fordefinitions of terms related to roofing, see Terminology D 1079.3.2 The following classes describe the ability to vulcanizeon the roof:1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing an
12、d is the direct responsibility of Subcommittee D08.18on Nonbituminous Organic Roof Coverings.Current edition approved Dec. 1, 2006. Published January 2007. Originallyapproved in 1990. Last previous edition approved in 2004 as D 4811 04.2For referenced ASTM standards, visit the ASTM website, www.astm
13、.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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.1 Clas
14、s VVulcanizing.3.2.2 Class NVNonvulcanizing.NOTE 2Class 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 formulated from theappropriate polymer type and other
15、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 re
16、pairs. The manufacturer orfabricator shall recommend suitable bonding methods andmaterials.5. Physical Property Requirements5.1 Class V flashing material shall conform to the physicalproperty requirements prescribed in Table 1 and Table 2. ClassNV flashing material shall conform to the physical prop
17、ertyrequirements prescribed in Table 1.5.2 Other requirements shall be agreed upon between thepurchaser and the supplier as part of the purchase contract.6. Dimensions and Permissible Variations6.1 The width and length shall be agreed upon between thepurchaser and the supplier as part of the purchas
18、e contract.6.1.1 The width and length tolerance shall be+3%and0%.6.2 Sheet thicknesses greater than minimum shall be agreedupon between the purchaser and the supplier as part of thepurchase contract.6.2.1 The thickness tolerance shall be +15 % and 10 % ofthe specified thickness, but in no case shall
19、 the thickness beless than the minimum listed in Table 1.7. Workmanship, Finish, and Appearance7.1 The flashing material shall be visually free of pinholes,particles of foreign matter, undispersed raw materials, or othermanufacturing defects that might affect serviceability.7.2 If the number of irre
20、gularities appear excessive on asheet (or portion thereof), then its rejection should be negoti-ated between involved parties.7.3 Edges of the sheet shall be capable of being seamed toone another and to other roofing components without fishmouthing.8. Test Methods8.1 ThicknessTest Methods D 412.8.2
21、Green Strength:8.2.1 Test a fresh sample manufactured within one week.8.2.2 Condition Type I material at 23 6 2C (73 6 4F) fora minimum of 1 h and a maximum of 8 h before proceedingwith the testing.8.2.3 Decrystallize Type II material by placing in a circu-lating air oven at 70 6 2C (158 6 4F) for 1
22、5 min. Afterremoval from the oven, condition at 23 6 2C (73 6 4F) fora minimum of 1 h and a maximum of 8 h before proceedingwith the testing.8.2.4 After conditioning, die out a 13-mm (0.5-in.) dumb-bell (DieA) and determine the modulus at 100 % extension andthe ultimate elongation at 23 6 2C (73 6 4
23、F) in accordancewith Test Methods D 412.8.2.5 After conditioning, die out a 13-mm (0.5-in.) dumb-bell (Die A), condition in a circulating air oven at 50 6 2C(122 6 4F) for 15 min minimum and 30 min maximum anddetermine the modulus at 100 % extension and the ultimateelongation at 50 6 2C (122 6 4F) i
24、n accordance with TestMethods D 412.8.3 Shelf StabilityDetermine green strength in accordancewith 8.2 after aging in a circulating air oven for 46 h at 70 62C (158 6 4F).8.4 Vulcanizability:8.4.1 ForType I andType II, oven age for 166 h at 70 6 2C(158 6 4F).8.4.2 After removal from the oven, conditi
25、on the samples at23 6 2C (73 6 4F) for a minimum of 1 h and a maximumof 8 h before proceeding with testing.8.4.3 Test for ultimate tensile and elongation in accordancewith Test Methods D 412 using a 13-mm (0.5-in.) dumbbell(Die A).8.5 Tensile Set (see Test Methods D 412):TABLE 1 Property Requirement
26、s for Flashing BeforeVulcanizationType I,Class VType I,Class NVType II,Class VThickness, min, mm (in.) 1.4 (0.055) 1.4 (0.055) 1.4 (0.055)Green Strength Modulus100 % at 23C (73F) kPa (psi)172-1725(25-250)172-1725(25-250)172-517(25-75)Elongation (Ultimate), min, % 400 400 400Modulus 100 % at 50C (122
27、F) kPa (psi) 83 (12) 83 (12) 83 (12)Elongation (Ultimate), min, % 200 200 200Shelf Stability:Modulus 100 %at 23C (73F), max, kPa (psi)1725 (250) n/a 1725 (250)Elongation, min, % 400 n/a 400Vulcanizability:Tensile Strength, min, kPa (psi) 2800 (406) n/a 2800 (406)Elongation, min, % 400 n/a 400Tensile
28、 Set: min, % 80 80 80Dimensional Stability, max, % 610 610 610Weatherability, nocracks or crazingpass pass passTABLE 2 Property Requirements for Flashing After VulcanizationType I,Class VType II,Class VVulcanization, at 160C (320F), min 20 6 2206 2Tensile Strength, min, MPa (psi) 9.0 (1305) 8.3 (120
29、5)Elongation, min, % 300 250Tear Resistance, min, kN/m (lb/in.) 22 (125) 22 (125)Brittle Point, max, C (F) 45 (49) pass 35 (31) passTensile Set, max, % 10 10Ozone Resistance, (73) no cracks no cracksHeat Aging, Air OvenTensile Strength, min, MPa (psi) 8.3 (1205) 8.3 (1205)Elongation, min, % 200 200T
30、ear Resistance (Die C), kN/m (lbf/in.),min22 (125) 22 (125)Water Absorption, weight change, range, % +8, 2 +8, 2Linear Dimension Change, max, % 62 62Weatherability, no cracks or crazing pass passD48110628.5.1 Decrystallize Type II material in accordance with8.2.3.8.5.2 Hold for 10 min at 23 6 2C (73
31、 6 4F) and 200 %elongation for Table 1.8.5.3 Hold for 10 min at 23 6 2C (73 6 4F) and 50 %elongation for Table 2.8.6 Dimensional Stability (see Test Method D 1204):8.6.1 Obtain a flat specimen of 150 by 150 mm (6 by 6 in.)and age in an air circulating oven at 100 6 2C (212 6 4F)for 1 h. Cool to 23 6
32、 2C (73 6 4F) for 1 h and measure theside of the specimen in both directions.8.7 VulcanizationPractice D 3182.8.8 Tensile StrengthTest Methods D 412, Die C.8.9 Ultimate ElongationTest Methods D 412, Die C.8.10 Tear ResistanceTest Method D 624, Die C.8.11 Brittle PointTest Methods D 2137.8.12 Ozone R
33、esistanceTest Method D 1149.8.12.1 Type I MaterialTest at 50 % extension, 100 MPa,166hat406 2C (104 6 4F).8.12.2 Type II MaterialTest at 20 % extension, 100 MPa,100hat406 2C (104 6 4F).8.13 Heat Aging (see Test Method D 573):8.13.1 Type I MaterialAge 670 h at 115 6 2C (240 64F).8.13.2 Type II Materi
34、alAge 70 6 0.7 h at 100 6 2C (2126 4F).8.14 Water Absorption (see Test Method D 471):8.14.1 Type I MaterialAge vulcanized specimen in waterfor 166 h at 70 6 2C (158 6 4F).8.14.2 Type II MaterialAge vulcanized specimen in waterfor46hat706 2C (158 6 4F).8.15 Linear Dimensional Changes (see Test Method
35、D 1204):8.15.1 Type I MaterialAge 670 h at 115 6 2C (239 64F).8.15.2 Type II MaterialAge 70 h at 100 6 2C (212 64F).8.16 Weather ResistanceThe two different types of expo-sures may produce different test results. Therefore, they cannotbe used interchangeably without supporting data that demon-strate
36、s equivalency of the procedures for the materials tested.Choice of apparatus and exposure conditions selected shall beby mutual agreement among the interested parties.8.16.1 Xenon Arc Light Exposure Apparatus OperationConditions (see Practices G 155 and G 151):Filter Type Daylight filterIrradiance 0
37、.35 to 0.70 W/(m2nm) at 340 nm. The maximumallowable operational fluctuation of the irradiancesetting is 60.02 W/(m2 nm).(42to84W/m2at 300 to 400 nm. The maximumallowable operational fluctuation of theirradiance setting is 62.5 W/m2.)Cycle 690 6 15 min light, 30 min light,plus water spray on the fro
38、nt surface.UninsulatedBlack PanelTemperature80C (176F) during the dry period. The maximumallowable operational fluctuation is 62.5C (65F).RelativeHumidity50 %. The maximum allowable operational fluctuationis 65%.Chamber AirTemperature(whereapplicable)50C. The maximum allowable operational fluctuatio
39、nis 62C.Spray Water Refer to Practice G 155, Section 6.6.1. Typical watertemperature used for specimen spray is 21 6 5C,but if ambient temperature is low and a holdingtank is not used to store purified water, thewater temperature can be below the typicalrange.Recommended specimen size is 75 mm (2.75
40、 in.) wide by 200 mm (8.0in.) long.SpecimenReposit-ioningRefer to Practice G 155, Section 9.5. Every 315 KJ/(m2 nm) at 340 nm (37.8 MJ/m2at 300 to 400 nm.)See Note 3.RadiantExposure5040 KJ/(m2nm) at 340 nm (604.8 MJ/m2at 300 to400 nm.) See Note 4.NOTE 3Repositioning ranging from every 250 h at 0.35
41、W/(m2nm) at340 nm to 125 h at 0.70 W/(m2nm) at 340 nm.NOTE 4The duration in terms of time ranges from 2000 h at 0.70W/(m2nm) at 340 nm to 4000 h at 0.35 W/(m2nm) at 340 nm.8.16.2 UV/Condensation Exposure Apparatus ConditionsUVB (See Practices G 154 and G 151):Lamp Type Fluorescent UVB313 with irradi
42、ance of 0.49 W/(m2nm)at 310 nm. The maximum allowable operationalfluctuation of the irradiance setting is 60.02 W/(m2 nm).Test Cycle 20 h UV at 80C (176F), 4 h condensation at 50C (122F)(uninsulated black panel temperatures). The maximumallowable operational fluctuation is 62.5C (65F).Exposure 4000
43、hNOTE 5If the operational fluctuations are greater than the maximumallowable after the equipment has stabilized, discontinue the test andcorrect the cause of the problem before continuing.8.16.3 The specimens for exposure shall be mounted underno strain. After exposure, remove the specimens and insp
44、ectimmediately. Strain specimens 10 % in the bent loop configu-ration in accordance with Test Method D 518 and visuallyinspect for cracks and crazing under 73 magnification. Aspecimen is rated PASS if no cracks or crazing are observed.9. Inspection9.1 Inspection of the material shall be agreed upon
45、betweenthe involved parties.9.2 The purchaser shall, in the contract, order special testswhich the supplier shall be required to make beyond those inSection 8.10. Rejection and Rehearing10.1 Failure to conform to any of the requirements pre-scribed in this specification shall constitute grounds for
46、rejec-tion. Rejection shall be reported to the producer or supplierpromptly and in writing. The seller shall then have the right toreinspect the rejected shipment material and resubmit the lotafter removal of those packages not conforming to the specifiedrequirements.11. Certification11.1 Upon reque
47、st of the purchaser, a manufacturers certi-fication that the material was manufactured in accordance withD4811063the requirements outlined in this specification, together with areport of test results, will be provided.12. Packaging and Package Marking12.1 The material shall be wound on a release lin
48、er, rolledon a substantial core, and packaged in a standard commercialmanner unless otherwise specified so as to be acceptable bycommercial or other carriers for safe transportation to the pointof delivery.12.2 Shipping containers shall be marked with:12.2.1 The name of the material,12.2.2 Product c
49、ode,12.2.3 ASTM number and type,12.2.4 Size or quantity, and12.2.5 Name of manufacturer or supplier.13. Keywords13.1 chloroprene; EPDM; flashing; nonvulcanized; roofing;vulcanizedASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin 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 righ
