1、Designation:D 371 89(Reapproved 1996)Standard Specification forAsphalt Roll Roofing(Organic Felt)Surfaced with MineralGranules;Wide Selvage1This standard is issued under the fixed designation D 371;the number immediately following the designation indicates the year oforiginal adoption or,in the case
2、 of revision,the year of last revision.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 specificati
3、on covers asphalt roofing in sheet form,36 in.(914 mm)in width,or other widths agreed upon betweenthe purchaser and the supplier,composed of asphalt-saturatedorganic felt with approximately half the width of the weatherside coated with asphalt and surfaced with mineral granules,for use as a cap shee
4、t in the construction of built-up roofs.1.2 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 the applica-bility of regulatory lim
5、itations prior to use.2.Referenced Documents2.1 ASTM Standards:D 146 Test Methods for Sampling and Testing Bitumen-Saturated Felts and Woven Fabrics for Roofing and Wa-terproofing2D 228 Test Methods for Asphalt Roll Roofing,Cap Sheets,and Shingles2D 1079 Terminology Relating to Roofing,Waterproofing
6、,and Bituminous Materials23.Terminology3.1 For definitions of terms used in this specification,referto Terminology D 1079.4.Classification4.1 Material covered by this specification is of two types:4.1.1 Type I,having a minimum mass per unit area of 37.0lb/100 ft2(1806 g/m2).4.1.2 Type II,having a mi
7、nimum mass per unit area of 46.3lb/100 ft2(2260 g/m2).4.1.3 Type III,having a minimum mass per unit area of 35.5lb/100 ft2(1733 g/m2).4.1.4 Type IV,having a minimum mass per unit area of 42.8lb/100 ft2(2090 g/m2).5.Materials and Manufacture5.1 In the process of manufacture,a single thickness of dryf
8、elt shall first be saturated with asphalt;then approximatelyhalf the width of the weather side shall be coated with asphalticmaterial and surfaced with mineral granules.The reverse sideof the sheet may or may not be coated;if coated,it shall becovered with a suitable material to prevent sticking in
9、the roll.5.2 The felt shall be produced from vegetable or animalfibers,or mixtures thereof.The surface of the felt shall beuniform and relatively smooth.Upon splitting or tearing on thebias,the felt shall appear reasonably free of lumps or particlesof foreign substances.5.3 The asphaltic material us
10、ed to coat the sheet may becompounded with a fine mineral stabilizer substantially in-soluble in water.6.Physical Requirements6.1 The finished product shall neither crack nor be so stickyas to cause tearing or material damage upon being unrolled atambient temperatures above 50F(10C).6.2 Pliability a
11、t 77F(25C)At least eight strips out often from the granule-surfaced portion of the sheet shall notcrack when tested in accordance with Test Methods D 228,Section 17.6.3 Behavior on Heating to 176F(80C)for 2 hThereshall be no more than 1.5%volatile loss,and the granularsurfacing shall not slide more
12、than116in.(2 mm)when testedin accordance with Test Methods D 228,Section 18.7.Dimensions,Mass,and Permissible Variations7.1 WidthThe material shall be put up in rolls and shall be36 in.(914 mm)6 0.7%wide,unless another width is agreedupon between the purchaser and the supplier.7.1.1 The coated and g
13、ranule-surfaced portion of theweather side shall have a uniform,minimum width of 17 in.(432 mm)for the standard 36-in.(914-mm)wide sheet,or asagreed upon between the purchaser and the supplier.For othersheet widths,the coated and granule-surfaced portion shallhave a minimum width of one half the she
14、et width minus 1 in.(25 mm).7.1.2 When the surfaced portion of the weather side exceedsthe minimum width,the sheet shall be marked with a conspicu-ous mopping line located from the exposed weather edge a1This specification is under the jurisdiction of ASTM Committee D-8 onRoofing,Waterproofing and B
15、ituminous Materials,and is the direct responsibility ofSubcommittee D08.02 on Prepared Roofing,Shingles,and Siding Materials.Current edition approved April 4,1989.Published May 1989.Originallypublished as D 371 33 T.Last previous edition D 371 80(1984).2Annual Book of ASTM Standards,Vol 04.04.1AMERI
16、CAN SOCIETY FOR TESTING AND MATERIALS100 Barr Harbor Dr.,West Conshohocken,PA 19428Reprinted from the Annual Book of ASTM Standards.Copyright ASTMdistance equal to one half the sheet width minus 1 in.(25 mm).7.2 AreaThe standard 36-in.(914-mm)wide roll shallcontain 108 ft2(10.0 m2)6 1%of sheet,which is sufficientmaterial to cover 50 ft2(4.65 m2)of the roof surface.7.3 The roofing shall conform to the masses prescribed inTable 1.8.Workmanship,Finish,and Appearance8.1 The felt shall be thoroughly
