1、Designation: C 726 05Standard Specification forMineral Fiber Roof Insulation Board1This standard is issued under the fixed designation C 726; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in pa
2、rentheses 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 the composition and physicalproperties
3、of mineral fiber insulation board used above struc-tural roof decks as a base for built-up roofing and single plymembrane systems in building construction.1.2 The use of thermal insulation materials covered by thisspecification may be regulated by building codes or otheragencies that address fire pe
4、rformance, or both. The fireperformance of the material should be addressed throughstandard fire test methods established by the appropriategoverning documents.1.3 The values stated in inch-pound units are to be regardedas the standard. the values given in parentheses are forinformation only.1.4 Thi
5、s 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 the regulatory limitations prior to use.2. Referenced Docu
6、ments2.1 The following standards, of the issue in effect on thedate of material purchase, form a part of this specification tothe extent specified herein:2.2 ASTM Standards:2C 165 Test Method for Measuring Compressive Propertiesof Thermal InsulationsC 168 Terminology Relating to Thermal Insulating M
7、ateri-alsC 177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded Hot Plate ApparatusC 203 Test Methods for Breaking Load and Flexural Prop-erties of Block-Type Thermal InsulationC 209 Test Methods for Cellulosic Fiber Insulating BoardC 39
8、0 Practice for Sampling and Acceptance of PreformedThermal Insulation Lots2C 518 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Heat Flow Meter ApparatusC 1363 Test Method for the Thermal Performance of Build-ing Assemblies by Means of a Hot B
9、ox ApparatusD 312 Specification for Asphalt Used in RoofingD 450 Specification for Coal-Tar Pitch Used in Roofing,Dampproofing, and WaterproofingD 2126 Test Method for Response of Rigid Cellular Plasticsto Thermal and Humid AgingE84 Test Method for Surface Burning Characteristics ofBuilding Material
10、s2.3 Other Referenced Documents:CAN/ULC-S102M88 Standard Method of Test for SurfaceBurning Characteristics of Building Materials andAssem-blies33. Terminology3.1 DefinitionsTerms used in this specification are definedin Terminology C 168.4. Ordering Information4.1 Orders for material purchased under
11、 this specificationshall include:4.1.1 Designation of this specification,4.1.2 Product name,4.1.3 Board dimensions,4.1.4 Quantity of material, and4.1.5 Special packaging or marking, (13.1 and 13.2)ifrequired.1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and
12、 is the direct responsibility of Subcommittee C16.20 onHomogeneous Inorganic Thermal Insulations.Current edition approved April 1, 2005. Published April 2005. Originallyapproved in 1972. Last previous edition appoved in 2000 as C 726 00a.2For referenced ASTM standards, visit the ASTM website, www.as
13、tm.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.3Available from Underwriters Laboratories of Canada, 7 Crouse Road, Scar-borough, Ontario, Canada M1R 3A9.1Copyright ASTM I
14、nternational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5. Materials and Manufacture5.1 Mineral fiber roof insulation board shall consist ofmineral fibers with an organic resin or other suitable binder.5.2 For built-up roofing or polymer modified bitumen sys
15、-tems the board shall be faced during manufacture on onesurface with a cover adequate for the application of Specifica-tion D 312 asphalt or Specification D 450 coal-tar pitchbuilt-up roofing.5.3 For single ply membrane systems the board may befaced or unfaced. For mechanically fastened single ply m
16、em-brane systems the board may be faced or unfaced. For adheredsingle ply membrane systems the board shall be faced duringmanufacture on one surface with a cover adequate for theapplication of the adhesive used to secure the single plymembrane.6. Physical Properties6.1 The average thermal resistance
17、, R, of specimenssampled in accordance with Practice C 390 shall be as speci-fied by the manufacturer.6.2 Nominal thickness required to obtain the specifiedresistance or conductance shall be as stated by the manufac-turer.6.3 Roof insulation boards shall have the limiting propertyvalues shown in Tab
18、le 1.7. Dimensions and Tolerances7.1 The dimensions shall be as agreed upon between thepurchaser and manufacturer. Tolerances shall be as follows:Tolerance, in. (mm)Long dimension 614 (6)Short dimension 614 (6)Thickness 618 (3)The long and short dimension tolerances in this section arefor individual
19、 boards. The tolerance for long and short dimen-sion averages for at least 20 boards shall be 6116 in. (2 mm).7.2 Board squareness shall be within required tolerance ifthe two diagonal measurements of the board differ by no morethan14 in. (6 mm).7.3 Board flatness shall be within required tolerance
20、if,when board is placed concave side up, the average distancebetween a flat supporting surface and the bottom board surfaceat the corners does not exceed516 in. (8 mm) over atemperature range from 20 to 140F (7 to 60C). Maximumdistance at an individual corner shall not exceed916 in. (14mm).7.4 The t
21、hermal resistance of any single specimen shall notbe more than 10 % below the value specified by the manufac-turer.7.5 Mass per unit area of any board, lb/ft2(kg/m2) shall bewithin 10 % of the value specified by the manufacturer.Average mass per unit area of at least 20 boards shall be within5 % of
22、the value specified by the manufacturer.8. Workmanship, Finish, and Appearance8.1 Insulation boards shall not have visible defects that willadversely affect service qualities.9. Sampling9.1 Sampling for qualification tests, if required, shall be inaccordance with Practice C 390. Qualification tests
23、will beconducted on the physical requirements in 6.1 and Table 1.9.2 Sampling for inspection tests, if required, shall be inaccordance with Practice C 390. Inspection requirements aredimensions (Section 7) plus any other properties as agreedupon between the purchaser and manufacturer.10. Specimen Pr
24、eparation10.1 Specimens for all tests shall include any factory-applied cover. Take care that the cover is not partially detachedin the process of cutting specimens.10.2 Unless otherwise specified, condition samples prior tocutting specimens for at least 12 h at 73 6 2F (24 6 1C), 506 5 % relative h
25、umidity before testing.11. Test Methods11.1 Thermal ResistanceTest Method C 177, C 518, orTest Method C 1363 at a mean temperature of 75 6 2F (24 61C) and 40F (22C) minimum temperature gradient or at amean temperature agreed upon between the purchaser andmanufacturer.11.2 Compressive ResistanceTest
26、Method C 165, Proce-dure A. Crosshead speed shall be 0.16 0.01 in. (2.5 6 0.25mm) for each 1 in. (25.4 mm) of specimen thickness.11.3 Tensile Strength Perpendicular to the Board SurfaceTest Methods C 209, see Test Conditions and Tensile StrengthPerpendicular to Surface, except that the specimens sha
27、ll be 6in. by 6 in. (150 mm by 150 mm).11.4 Breaking Load Test Methods C 203, Method I,Procedure D. Specimen width shall be 6 in. (152 mm) andsupport span shall be 10 in. (254 mm).11.5 Water Absorption Test Methods C 209 (see WaterAbsorption section). When material is thicker than 1.0 in., splitthe
28、material to give a specimen thickness of 1.00 6 0.03 in.The test specimen shall include the faced side of the materialif applicable. Immerse the specimen with the faced surfacedown.11.6 Response to Thermal and Humid AgingTest MethodD 2126. Expose 12 by 12 in. (305 by 305 mm) by actualthickness speci
29、mens to 158 6 4F (70 6 2C), 97 6 3%relative humidity for 168 6 2h.11.7 Surface Burning Characteristics of Building Materials(if required)Test with the bottom surface exposed to the testflame. Test in accordance with Test Method E84. For Canada,test in accordance with Test Method CAN/ULC-S102M88.11.8
30、 DimensionsTest Methods C 209, see Test Condi-tions, Thickness, and Size of Finished Board.TABLE 1 Physical PropertiesProperty RequirementCompressive resistance at 25 % deformation, min, psi(kPa)12 (83)Tensile strength perpendicular to board surface, min,lbf/ft2(kPa)100 (4.8)Breaking load, min, lbf
31、(N) 20 (89)Water absorption, max, volume % 10AResponse to thermal and humid aging, lineardimensional change, max, %length and width: 5thickness: 7AThere shall be no delamination during the water absorption test.C72605212. Rejection12.1 Failure to conform to the requirements in this specifi-cation sh
32、all constitute cause for rejection. In case of rejection,the manufacturer shall have the right to reinspect the rejectedshipment and resubmit the lot after removal of that portion notconforming to requirements.13. Packaging and Marking13.1 PackagingUnless otherwise specified, the insulationshall be
33、supplied in the manufacturers standard commercialpackages.13.2 MarkingUnless otherwise specified, each packageshall be marked with the material name, manufacturers nameor trademark, board dimensions, number of pieces, coveragearea of the material in the package, and thermal resistance orconductance.
34、14. Keywords14.1 board; insulation; mineral fiber; roofASTM 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
35、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 withdrawn. Your comments are invited either
36、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 comments have not received a fair hear
37、ing 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).C726053
