1、Designation:D262604 Designation: D2626/D2626M 04 (Reapproved 2012)1Standard Specification forAsphalt-Saturated and Coated Organic Felt Base SheetUsed in Roofing1This standard is issued under the fixed designation D2626/D2626M; the number immediately following the designation indicates theyear of ori
2、ginal 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.This standard has been approved for use by agencies of the Department of D
3、efense.1NOTEUnits information was editorially corrected in June 2012.1. Scope1.1 This specification covers asphalt-saturated and coated organic felt base sheet with mineral surfacing on the top side, withor without perforations, for use as the first ply of a built-up roof. When not perforated, this
4、sheet is suitable for use as a vaporretarder, with a solid mopping of asphaltic material, under roof insulation or between multiple layers of roof insulation.1.2The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.1.2 The values stated
5、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-conformance with the standard.2. Ref
6、erenced Documents2.1 ASTM Standards:2D146 Test Methods for Sampling and Testing Bitumen-Saturated Felts and Woven Fabrics for Roofing and WaterproofingD226 Specification for Asphalt-Saturated Organic Felt Used in Roofing and WaterproofingD228 Test Methods for Sampling, Testing, and Analysis of Aspha
7、lt Roll Roofing, Cap Sheets, and Shingles Used in Roofingand WaterproofingD1079 Terminology Relating to Roofing and WaterproofingE96/E96M Test Methods for Water Vapor Transmission of Materials3. Terminology3.1 DefinitionsFor definitions of terms used in this specification, refer to Terminology D1079
8、.3.2 Definitions of Terms Specific to This Standard:3.2.1 lotfor the purpose of sampling, a lot shall consist of all material of the same type and size offered for delivery at onetime.4. Materials and Manufacture4.1 In the process of manufacture, a single thickness of dry organic felt shall be satur
9、ated with hot asphalt, coated on both sideswith a hot asphaltic material, and surfaced on the top side with mineral surfacing.4.2 The felt shall be produced principally from organic fibers, or mixtures thereof. The surface of the felt shall be uniform andrelatively smooth. Upon splitting or tearing
10、on the bias, the felt shall appear reasonably free of lumps and particles of foreignsubstances.4.3 The coating shall be a hot-applied asphalt material permitted to be compounded with a mineral stabilizer.4.4 The reverse side of the base sheet may be covered with a suitable material to prevent sticki
11、ng in the roll.1This specification is under the jurisdiction of ASTM Committee D08 on Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.04 on Feltsand Fabrics.Current edition approved Aug.1, 2004. Published August 2004. Originally approved in 1967. Last previous edition
12、approved in 1997 as D262697b. DOI:10.1520/D2626-04.on Felts, Fabrics and Bituminous Sheet Materials.Current edition approved May 1, 2012. Published June 2012. Originally approved in 1967. Last previous edition approved in 2004 as D2626 04. DOI:10.1520/D2626_D2626M-04R12E01.2For referenced ASTM stand
13、ards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.1This document is not an ASTM standard and is intended only to provide the user of an
14、 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 publis
15、hed 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 States.5. Physical Properties5.1 The material shall conform to the physical requirements prescribed in Table 1 and the dimensions and masse
16、s prescribedin Table 2 and Table 3. Perforated base sheets shall conform to the same requirements as the plain type but shall also haveuniformly spaced perforations.5.2 The finished product shall not crack nor be so sticky as to cause tearing or other damage upon being unrolled at temperaturesbetwee
17、n 10 and 60C (5050 and 140F). 140F.6. Dimensions, Mass, and Permissible Variations6.1 The material shall conform to the dimensions and masses prescribed in Table 2.6.2 Perforated material shall also conform to the dimensions and other requirements prescribed in Table 3.7. Workmanship, Finish, and Ap
18、pearance7.1 The felt shall be thoroughly and uniformly saturated, and shall show no unsaturated spots at any point upon cutting 50-mm(2-in.)2-in. wide strips at random across the entire width of the sheet and splitting them open for their full length.7.2 The coating shall be applied uniformly on bot
19、h sides of the sheet in a continuous, unbroken film that extends to the edgesof the sheet. The coating may be smooth or finely veined, but not coarsely veined.7.3 The mineral surfacing shall be applied uniformly over the entire surface of the top side of the sheet. If soap or other materialis used o
20、n the reverse side of the sheet, the amount applied shall not be so great as to interfere with adhesion between the basesheet and plying cement. Coarse mica shall not be used on either surface.7.4 The finished material shall be free of visible defects such as holes, ragged or untrue edges, breaks, c
21、racks, tears,protuberances, and indentations, except for intentionally provided perforations and the associated protuberances.8. Sampling and Test Methods8.1 Sample the material and determine the properties enumerated in this specification in accordance with Test Methods D228,unless otherwise indica
22、ted.8.2 Breaking StrengthTest Methods D146, Section 13 (Strength).8.3 Water Vapor PermeanceTest Methods E96/E96M, Procedure B.8.4 Moisture Content Test Methods D146, Section 12 (Moisture).8.5 Thickness of Desaturated FeltTest Methods D146, Section 21 (Thickness of Felts).8.6 For perforated base shee
23、t, determine the average venting area in accordance with 8.2 (from the Sampling and Test Methodssection) of Specification D226.9. Inspection9.1 InspectionInspection shall be in accordance with the requirements of this specification.9.2 Inspection AlternativesAlternative inspection requirements shall
24、 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 the requirements as stated in this specification constitutes grounds forrejection.10.2 Rejection RedressThe supplier shall have the right to ins
25、pect the rejected materials. The supplier and the purchaser shallagree to the quantity of rolls deemed unacceptable. The supplier shall then have the right to submit the same number of new rollsas replacement.TABLE 1 Physical Requirements of Asphalt-Saturated andCoated Base SheetPliability, number o
26、f failures, max 2Behavior on heating no flowing, sagging,blistering, or absorption ofthe coatingAverage breaking strength, min, kN/m(lbf/in.) width:Average breaking strength, min, kN/mlbf/in. width:with fiber grainacross fiber grain6.1 (35)3.5 (20)with fiber grainacross fiber grain6.1 353.5 20Water
27、vapor permeance, at 23C (73.4F),max, ng/Pasm2(grains/hft2inHg)17 (0.3)AWater vapor permeance, at 23C 73.4F,max, ng/Pasm2grains/hft2inHg17 0.3AATest nonperforated sheet only.D2626/D2626M 04 (2012)1211. Packaging and Package Marking11.1 Unless otherwise agreed upon between the supplier and purchaser,
28、each product package shall be plainly marked with thesuppliers name, the product brand, the ASTM designation, and type of bitumen if not evident in the label name of the product.11.2 The rolls shall be securely wrapped or banded in a manner that completely encircles the roll and will prevent slippin
29、g orunrolling.11.3 No roll shall contain more than two pieces, and no more than 3 % of the rolls in any lot shall contain two pieces. If a rollcontains a manufacturing splice, the splice shall be clearly marked.12. Keywords12.1 asphalt saturated and coated; built-up roofs; first ply; organic feltTAB
30、LE 2 Dimensions and Masses of Asphalt-Saturated andCoated Base SheetWidth of roll, mm (in.) 914 (36) 6 0.7%,orasagreed upon betweenpurchaser andsupplierWidth of roll, mm in. 914 36 6 0.7%,orasagreed upon betweenpurchaser andsupplierArea of roll as agreed upon betweenpurchaser andsupplierNet mass of
31、base sheet, min, g/m2(lb/100 ft2) 1806 (37)Net mass of base sheet, min, g/m2lb/100 ft2 1806 37Moisture, max, mass % 2.0AMass of desaturated felt, min, g/m2(lb/100 ft2) 253 (5.2)Mass of desaturated felt, min, g/m2lb/100 ft2 253 5.2Thickness of desaturated felt, min, mm (in.) 0.64 (0.025)Thickness of
32、desaturated felt, min, mm in. 0.64 0.025Mass of asphalt saturant soluble in trichloroethylenemin, g/m2(lb/100 ft2)B350 (7.2)Mass of asphalt saturant soluble in trichloroethylenemin, g/m2lb/100 ft2B350 7.2Mass of coating and surfacing, min, g/m2(lb/100 ft2) 878 (18.0)Mass of coating and surfacing, mi
33、n, g/m2lb/100 ft2 878 18.0Mass per side of asphalt coating, exclusive ofmineral stabilizer and surfacing, min, g/m2(lb/100 ft2)170 (3.5)Mass per side of asphalt coating, exclusive ofmineral stabilizer and surfacing, min, g/m2lb/100 ft2170 3.5Mass percent of mineral matter passing a 212-m(No. 70) sie
34、ve on the basis of the total mass ofmineral-filled coating and mineral surfacing,max, %60AAt time of manufacture. Products with higher moisture content at time ofinstallation may cause hot materials to foam, creating interply voids that may resultin blisters.BThe mass of the saturant shall be not le
35、ss than 1.40 times the mass of thedesaturated, dry felt.TABLE 3 Dimensions and Other Requirements for PerforatedBase SheetDiameter of holes, max, mm (in.) 6.4 (0.25)Diameter of holes, max, mm in. 6.4 0.25Spacing of holes in each row, center tocenter, min, mm (in.)114 (4.5)Spacing of holes in each ro
36、w, center tocenter, min, mm in.114 4.5Spacing between adjacent rows, center tocenter, min, mm (in.)114 (4.5)Spacing between adjacent rows, center tocenter, min, mm in.114 4.5Number of holes/m2(holes/ft2), min 14 (1.3)Number of holes/m2holes/ft2, min 14 1.3Average venting area, min, % of total area 0
37、.04D2626/D2626M 04 (2012)13ASTM 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 infri
38、ngement 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 withdrawn. Your comments are invited either for revision of this standar
39、d 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 comments have not received a fair hearing you shouldmake your view
40、s 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). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D2626/D2626M 04 (2012)14
