1、Designation: C 726 05e1Standard 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
2、parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.e1NOTESections 2.3 and 11.7 were editorially updated in June 2008.1. Scope1.
3、1 This specification covers the composition and physicalproperties 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 b
4、e regulated by building codes or otheragencies that address fire performance, 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 standa
5、rd. the values given in parentheses are forinformation only.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 the applica-b
6、ility of the regulatory limitations prior to use.2. Referenced Documents2.1 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 Th
7、ermal InsulationsC 168 Terminology Relating to Thermal InsulationC 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 20
8、9 Test Methods for Cellulosic Fiber Insulating BoardC 390 Practice for Sampling and Acceptance of ThermalInsulation LotsC 518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC 1363 Test Method for Thermal Performance of BuildingMaterials and Envel
9、ope Assemblies by Means of a HotBox 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 Ch
10、aracteristics ofBuilding Materials2.3 Other Referenced Documents:CAN/ULC-S102 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 Order
11、s for material purchased under 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.5. Materials and Manufacture5.1 Mineral fiber roof insulation
12、board shall consist ofmineral fibers with an organic resin or other suitable binder.1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.20 onHomogeneous Inorganic Thermal Insulations.Current edition approved Ap
13、ril 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.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to th
14、e standards Document Summary page onthe ASTM website.3Available from Underwriters Laboratories of Canada, 7 Crouse Road, Scar-borough, Ontario, Canada M1R 3A9.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.2 For built-up roofing o
15、r polymer modified bitumen sys-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 mech
16、anically fastened single ply mem-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
17、The average thermal resistance, 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 limiti
18、ng propertyvalues shown in Table 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
19、this section arefor individual 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
20、 be within required tolerance 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
21、exceed916 in. (14mm).7.4 The thermal 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
22、 boards shall be within5 % of 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 Practi
23、ce C 390. Qualification tests 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 an
24、d manufacturer.10. Specimen Preparation10.1 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
25、 (24 6 1C), 506 5 % relative humidity 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
26、.2 Compressive ResistanceTest 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,
27、 except that the specimens shall 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 t
28、hicker than 1.0 in., splitthe 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 30
29、5 mm) by actualthickness specimens 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 Te
30、st Method CAN/ULC-S102. Whenthe referenced Canadian document in this specification isreferred to in applicable Canadian building codes, the editions,referenced by those building codes, shall govern.11.8 DimensionsTest Methods C 209, see Test Condi-tions, Thickness, and Size of Finished Board.TABLE 1
31、 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 (N) 20 (89)Water absorption, max, volume % 10AResponse to thermal and humid aging, lineardimension
32、al change, max, %length and width: 5thickness: 7AThere shall be no delamination during the water absorption test.C72605e1212. Rejection12.1 Failure to conform to the requirements in this specifi-cation shall constitute cause for rejection. In case of rejection,the manufacturer shall have the right t
33、o 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 supplied in the manufacturers standard commercialpackages.13.2 MarkingUnless otherwise specified
34、, 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.14. Keywords14.1 board; insulation; mineral fiber; roofASTM International takes no position resp
35、ecting 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 infringement of such rights, are entirely their own responsibility.This s
36、tandard 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 standard or for additional standardsand should be addressed to ASTM Interna
37、tional 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 views known to the ASTM Committee on Standards, at the address shown bel
38、ow.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).C72605e13
