1、Designation: D 4601 04Standard Specification forAsphalt-Coated Glass Fiber Base Sheet Used in Roofing1This standard is issued under the fixed designation D 4601; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revi
2、sion. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification covers asphalt impregnated
3、 andcoated glass fiber base sheet, with or without perforations, foruse as the first ply of the built-up roofing. When not perforated,this sheet is suitable for use as a vapor retarder, with a solidmopping of asphaltic material, under roof insulation or be-tween multiple layers of roof insulation.1.
4、2 The values stated in SI units are to be regarded as thestandard. The values in parentheses are for information only.2. Referenced Documents2.1 ASTM Standards:2D 146 Test Methods for Sampling and Testing Bitumen-Saturated Felts and Woven Fabrics for Roofing and Wa-terproofingD 228 Test Methods for
5、Sampling, Testing, and Analysis ofAsphalt Roll Roofing, Cap Sheets, and Shingles Used inRoofing and WaterproofingD 1079 Terminology Relating to Roofing, Waterproofing,and Bituminous Materials3. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to Terminology D 107
6、9.4. Classification4.1 Asphalt impregnated and coated glass fiber base sheet,Type I and Type II, are covered by this specification.5. Materials and Manufacture5.1 The mat shall be a thin, porous mat of uniformlydistributed glass fibers, with or without additional reinforcingstrands of glass yarn, an
7、d bonded with a water-resistantresinous binder.5.2 In the process of manufacture, a single thickness of glassfiber mat shall be impregnated with hot asphalt, coated on oneor both sides with a hot asphaltic material, and permitted to besurfaced with mineral surfacing.5.3 The impregnating and coating
8、material shall be a hot-applied asphalt permitted to be compounded with a mineralstabilizer.5.4 The base sheet may be faced with a kraft paper on thebottom side.6. Physical Requirements, Dimensions, and Masses6.1 The material shall conform to the physical requirements,dimensions, and masses describe
9、d in Table 1 and Table 2.Itmay have small pin holes throughout the sheet.6.2 Perforated material shall conform to the physical re-quirements, dimensions, and masses described in Tables 1-3.Itmay have small pin holes throughout the sheet.6.3 The finished product shall not crack nor be so sticky asto
10、cause tearing or other damage upon being unrolled attemperatures between 4 and 60C (40 and 140F).7. Workmanship, Finish, and Appearance7.1 The finished material shall be uniformly impregnatedand coated with asphalt. It shall be free of visible defects suchas holes, ragged or untrue edges, breaks, cr
11、acks, tears, andprotrusions. This is not to exclude perforations for the specificpurpose of providing for venting of gases during application orsmall pin holes.8. Sampling and Test Methods8.1 Sample the material and determine the properties de-scribed in this specification in accordance with Test Me
12、thodsD 228 unless otherwise indicated.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.04on Felts and Fabrics.Current edition approved Dec. 1, 2004. Published January 2005. Originallyapproved in 1986.
13、 Last previous edition approved in 1998 as D 4601 98.2For 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 website.TABLE 1
14、Physical RequirementsADescription Type I Type IIBreaking strength, minimum kN/m(lbf/in.) longitudinal and transverse3.9 (22) 7.7 (44)Pliability, 13 mm (12 in.) radiusMaximum failures, 10 specimens 0 0ATo prevent the asphalt glass fiber base sheet from slipping from between thejaws of the tensile tes
15、ting machine, insert a thin strip of soft gasket rubber betweenthe felt in each of the four jaw faces of the machine.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.8.2 Breaking StrengthDetermine in accordance with TestMethods D 146,
16、 Section 13. (Specimens must be free fromperforations.)8.3 Moisture ContentDetermine in accordance with TestMethods D 146, Section 12.8.4 Pliability TestingTest in accordance with Test Meth-ods D 146, except the specimens shall be conditioned as in TestMethods D 146, Strength Section 13.1.1.8.5 Use
17、rule to measure perforation size and spacing.8.6 The percentage of surfacing and stabilizer shall be theratio of mass of surfacing and stabilizer to the mass of thesurfacing, stabilizer, and asphalt.9. Inspection9.1 InspectionInspection shall be in accordance with therequirements of this specificati
18、on.9.2 Inspection AlternativesAlternative inspection require-ments shall be determined by and as agreed upon between thepurchaser and the supplier.10. Rejection and Resubmittal10.1 Failure to ConformFailure to conform to any of therequirements as stated in this specification constitutes groundsfor r
19、ejection.10.2 Rejection RedressThe supplier shall have the right toinspect the rejected materials. The supplier and the purchasershall agree to the quantity of rolls deemed unacceptable. Thesupplier shall then have the right to submit the same number ofnew rolls as replacement.11. Packaging and Pack
20、age Marking11.1 Unless otherwise agreed upon between the supplier andpurchaser, each product package shall be plainly marked withthe suppliers name, the product brand, the ASTM designation,and type of bitumen if not evident in the label name of theproduct.11.2 The rolls shall be securely wrapped or
21、banded in amanner that completely encircles the roll and will preventslipping or unrolling.11.3 No roll shall contain more than two pieces, and nomore than 3 % of the rolls in any lot shall contain two pieces.If a roll contains a manufacturing splice, the splice shall beclearly marked.12. Keywords12
22、.1 asphalt impregnated; base sheet; built-up roof; coated;fiberglass; partially attached; vapor retarderTABLE 2 Dimensions and MassesADescription Type I Type IIWidth of roll, mm (in.) 914 (36) 6 0.7 % 914 (36) 6 0.7 %or oras agreed between buyer and seller as agreed between buyer and sellerArea of r
23、oll as agreed between buyer and seller as agreed between buyer and sellerNet dry masscoated sheet minimum g/m2(lb/100 ft2)Average of all rolls 654 (13.4) 756 (15.5)Individual rolls 625 (12.8) 708 (14.5)Moisture, %, maximum at time of manufacture 1.0 1.0Mass of desaturated glass mat, minimum, g/m2(lb
24、/100 ft2) 68 (1.4) 83 (1.7)Surfacing and stabilizer, max. % 70 65Asphalt, minimum, g/m2(lb/100 ft2) 273 (5.6) 342 (7.0)Ash, % (glass mat only) 70 to 88 70 to 88ATest for compliance to this specification prior to application. Types cannot be differentiated after installation.TABLE 3 Dimensions and Ho
25、le Spacing Requirements for Perforated Glass Fiber Base SheetProperty 6.4 mm (0.25 in.) Perforations 25.4 mm (1 in.) PerforationsDiameter of perforation, mm (in.) 6.4 (0.25) 6 20 % 25.4 (1.0) 6 20 %Spacing of perforations in each row, center to center, mm (in.) 152 (6.0) 6 25 % 152 (6.0) 6 25 %Spaci
26、ng between adjacent rows, center to center, mm (in.) 152 (6.0) 6 25 % 152 (6.0) 6 25 %D4601042ASTM 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 determinat
27、ion 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 be reviewed every five years andif not revised, either reapproved or withd
28、rawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your
29、 comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D4601043
