ASTM D1970 D1970M-2016 Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection《冰坝防护用作为陡斜屋面衬底的.pdf
《ASTM D1970 D1970M-2016 Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection《冰坝防护用作为陡斜屋面衬底的.pdf》由会员分享,可在线阅读,更多相关《ASTM D1970 D1970M-2016 Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection《冰坝防护用作为陡斜屋面衬底的.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D1970/D1970M 16Standard Specification forSelf-Adhering Polymer Modified Bituminous Sheet MaterialsUsed as Steep Roofing Underlayment for Ice DamProtection1This standard is issued under the fixed designation D1970/D1970M; the number immediately following the designation indicates theyear
2、 of original adoption or, in the case of revision, the year of 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 polymer modified bituminoussh
3、eet materials intended for use as underlayment on roof eaves,or valleys, or both, to prevent leakage of shingle, tile, or metalroofs from water back-up due to ice dams.1.2 These underlayment sheets have a sticky adhesive layerwhich is exposed by removal of a protective sheet. The topsurface is suita
4、ble to work on during the application of theexposed roofing.1.3 The values stated in either SI units 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. Combiningva
5、lues from the two systems may result in non-conformancewith the standard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine
6、the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D228/D228M Test Methods for Sampling, Testing, andAnalysis of Asphalt Roll Roofing, Cap Sheets, andShingles Used in Roofing and WaterproofingD903 Test Method for Peel or Stripping Strength of Adhe-si
7、ve BondsD1079 Terminology Relating to Roofing and WaterproofingD1204 Test Method for Linear Dimensional Changes ofNonrigid Thermoplastic Sheeting or Film at ElevatedTemperatureD2523 Practice for Testing Load-Strain Properties of Roof-ing MembranesD4073 Test Method for Tensile-Tear Strength of Bitumi
8、nousRoofing MembranesD5147/D5147M Test Methods for Sampling and TestingModified Bituminous Sheet MaterialD7349/D7349M Test Method for Determining the Capabil-ity of Roofing and Waterproofing Materials to Seal aroundFastenersE96/E96M Test Methods for Water Vapor Transmission ofMaterials3. Terminology
9、3.1 DefinitionsFor definitions of terms used in thisspecification, refer to Terminology D1079.3.2 Definitions of Terms Specific to This Standard:3.2.1 lotfor the purpose of sampling, a lot shall consist ofall material manufactured in one production run (not to exceed24 h) using the same source of ra
10、w materials.4. Workmanship, Finish, and Appearance4.1 The underlayment sheet shall be supplied in roll form.4.2 The underlayment sheet shall be substantially uniformin thickness and appearance. It shall be free of visible defectssuch as holes, ragged or untrue edges, breaks, cracks, tears,protuberan
11、ces, and indentations, except for those perforationsor protuberances which are intentional.4.3 The surface of the underlayment sheet shall be designedto provide traction and slip resistance to the applicator.NOTE 1The intent of 4.3 is to recognize that surface slipperiness isimportant when working o
12、n a roof and, while no test method is specifiedin this standard, several methods for assessing the relative slipperiness ofsurfaces are available. It is the further intent of this paragraph to ensurethat, whatever method is used, the friction coefficient or resistance toslipping of the surface of th
13、ese products should be at least as great asasphalt-saturated felt shingle underlayment tested under the same condi-tions of temperature and wetness as agreed between purchaser and seller.4.4 Sheet sections shall be suitable for joining by themanufacturers recommended procedure. The entire lower1This
14、 specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.02on Steep Roofing Products and Assemblies.Current edition approved Nov. 1, 2016. Published November 2016. Originallyapproved in 1990. Last previous edition
15、 approved in 2015 as D1970/D1970M 15a.DOI: 10.1520/D1970_D1970M-16.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM we
16、bsite.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1surface of the underlayment sheet shall be capable of beingfully adhered to the roof deck.5. Physical Requirements5.1 The underlayment sheet shall conform to the physicalrequiremen
17、ts prescribed in Table 1.5.2 The underlayment sheet shall not crack nor be so stickyas to cause tearing or other damage upon being unrolled atmaterial temperatures between 4.4 and 60C 40 and 140F.6. Sampling6.1 From each lot of underlayment sheet, select sample rollsin accordance with Test Methods D
18、228/D228M.6.2 The rolls so selected shall constitute the representativesample used for all subsequent observations and tests pertain-ing to the lot of material being examined.7. Test Methods7.1 ConditioningUnless otherwise specified, conditiontest specimens for at least4hat236 2C 73.4 6 3.6F and50 6
19、 5 % relative humidity prior to testing.7.2 Thickness:7.2.1 Measure the thickness of the roofing underlayment inaccordance with Test Methods D5147/D5147M.7.2.2 Report the number of measurements, the average andstandard deviation across the sheet.7.3 Maximum Load and Elongation at BreakThis testmetho
20、d covers the determination of the maximum load andelongation at break of the underlayment sheets, as set forth inPractice D2523 except as noted below.7.3.1 Specimens:7.3.1.1 Prepare five specimens from each sample roll inboth the longitudinal and transverse directions. Specimensshall be 25 mm 1 in.
21、65 % wide by a minimum of 150 mm6 in. 65 % long. For materials with high elongation thelength of the sample may be reduced to 100 mm 4 in. 65%if necessary to avoid limitations imposed by dimensions of thetest machine.7.3.2 Procedure:7.3.2.1 Condition each specimen at least2hat236 2C73.4 6 3.6F.7.3.2
22、.2 Use a constant rate of elongation (CRE) tensiontesting machine, preferably with automatic load and strainrecording equipment and clamps that permit a uniform clamp-ing pressure on the specimen without slipping. The initialclamp separation shall be a minimum of 75 mm 3 in. 65%for sheets having an
23、ultimate elongation of 75 % or less at23.9C 75F and 50 mm 2 in. 65 % for sheets having anultimate elongation greater than 75 % at 23.9C 75F.7.3.2.3 Maintain a rate of separation of 50 mm 2 in. 63%per min.7.3.2.4 Record the percent elongation of each specimen atthe visual break of the modified bitume
24、n portion using anextensiometer, or mark the extension at visual break of themodified bitumen portion from the chart of the stress versustime (knowing the speed of the chart drive and the jawseparation rate).7.3.2.5 Record the maximum load attained by each speci-men.7.3.3 Calculation:7.3.3.1 Determi
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