1、Designation: C1225 08 (Reapproved 2012)Standard Specification forFiber-Cement Roofing Shingles, Shakes, and Slates1This standard is issued under the fixed designation C1225; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year
2、of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers fiber-cement shingles, shakes,and slates (roofing products) of nominally uniform thicknes
3、s(non-tapered) and texture, including accessories designed toprovide the weather-exposed surfaces on roofs of buildings.1.2 This specification is not applicable to asbestos-cementroofing shingles (Specification C222), non-asbestos fiber-cement roofing shakes, shingles, and slates with designedvaryin
4、g profiles and thicknesses (Specification C1530), particleboard (Terminology D1554), or cement-bonded particleboards(Specification BS 5669: Part 4) and (ISO 8335).1.3 This specification does not include details of productinstallation or installed system performance. Refer to themanufacturers install
5、ation literature for proper installationinstructions, to Specification C1459 for roofing systemsperformance, and to Test Methods E108 for levels of fireresistance.1.4 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to S
6、I units that are provided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2C222 Specification for Asbestos-Cement Roofing ShinglesC1154 Terminology for Non-Asbestos Fiber-Reinforced Ce-ment ProductsC1185 Test Methods for Sampling and Testing Non-Asbestos
7、 Fiber-Cement Flat Sheet, Roofing and SidingShingles, and ClapboardsC1459 Specification for Performance of Non-AsbestosFiber-Reinforced Cement Shake, Shingle, and Slate Roof-ing SystemsC1530 Specification for Non-Asbestos Fiber-Cement Roof-ing Shakes, Shingles, and Slates with Designed VaryingProfil
8、es and ThicknessesD1554 Terminology Relating to Wood-Base Fiber and Par-ticle Panel MaterialsE108 Test Methods for Fire Tests of Roof Coverings2.2 British Standards:3BS 5669: Specification for cement bonded particleboard2.3 International Standards:3ISO 8335 Cement-bonded particleboardsBoards of Port
9、-land or equivalent cement reinforced with fibrous woodparticles33. Terminology3.1 DefinitionsRefer to Terminology C1154.4. Manufacture and Composition4.1 ManufactureThese products may be formed eitherwith or without pressure and cured, either under natural oraccelerated conditions, to meet the phys
10、ical requirements ofthis specification.4.2 CompositionThis specification is applicable to fibercement roofing products consisting essentially of an inorganichydraulic binder or a calcium silicate binder formed by thechemical reaction of a siliceous material and a calcareousmaterial reinforced by org
11、anic fibers, inorganic non-asbestosfibers, or both. Process aids, fillers, and pigments which arecompatible with fiber cement may be added.5. Mechanical and Physical Properties5.1 Mechanical and physical properties shall be determinedon uncoated products wherever practical. Where products aresupplie
12、d coated, this material shall also be tested with theresults identified as applying to coated material. Failure of thecoating as a consequence of the mechanical testing shall notconstitute failure of the product. Accessory products shall beexcluded from these requirements.5.1.1 Sampling and inspecti
13、on for mechanical and physicalproperties shall be conducted in accordance with Test MethodsC1185.1This specification is under the jurisdiction of ASTM Committee C17 onFiber-Reinforced Cement Products and is the direct responsibility of SubcommitteeC17.02 on Non-Asbestos Fiber Cement Products.Current
14、 edition approved Nov. 1, 2012. Published November 2012. Originallyapproved in 1993. Last previous edition approved in 2008 as C1225 08. DOI:10.1520/C1225-08R12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book o
15、f ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036, http:/www.ansi.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Co
16、nshohocken, PA 19428-2959. United States16. Requirements6.1 Mechanical Requirements:6.1.1 Flexural StrengthWhen tested in accordance withTest Methods C1185, the product shall be classified accordingto its modulus of rupture. The product modulus of rupture andbreaking moment in the primary strength d
17、irection shall be notless than that specified in Table 1.6.1.2 Where a manufacturer states a minimum productmodulus of rupture, it shall be at the 4 % acceptable qualitylevel (AQL) at the 90 % confidence limit as are the values ofTable 1.6.1.3 The primary strength direction is that heaviest loadeddi
18、rection which will resist wind uplift when the product isinstalled.6.1.3.1 Known Orientation of InstallationWhere the sys-tem design ensures or dictates that the product orientation atinstallation is known, and the product is manufactured suchthat its strongest direction coincides with the primary s
19、trengthdirection, then classification of product shall be based on itsstrongest strength direction.6.1.3.2 Unknown Orientation of InstallationWhere a sys-tem design does not ensure or dictate that the product orienta-tion at installation is known, then classification of the productshall be based on
20、its weakest strength direction.6.1.4 The product modulus of rupture in the weakest direc-tion shall not be less than 50 % of the modulus of rupture in thestrongest direction.6.2 Physical Requirements:6.2.1 DensityNominal values and tolerances for densityshall be stated by the manufacturer, when test
21、ed in accordancewith the method specified in Test Methods C1185.6.2.2 Water AbsorptionCalculate the amount of waterabsorbed from the increase in weight of the dried specimenduring submersion for a period of 48 h. Express waterabsorption as the percentage by weight when tested in accor-dance with Tes
22、t Methods C1185.6.2.3 Moisture ContentState the percentage of moisturecontent of the fiber-cement shingle when conditioned at 50 65 % relative humidity and a temperature of 73 6 4F (23 62C) in accordance with Test Methods C1185.7. Dimensions and Permissible Variations7.1 Nominal Length, Width and Th
23、icknessThe shapes,size, and thickness shall be specified by the manufacturer.7.2 Length and Width Tolerance The permissible variationfrom the nominal width and length shall be 614 in. (66.4 mm).The method of measurement shall be in accordance with TestMethods C1185.7.3 Thickness ToleranceThe thickne
24、ss variation from thenominal thickness shall not exceed 10 % + 25 %. Themethod of measurement shall be in accordance with TestMethods C1185.8. Workmanship and Finish8.1 WorkmanshipThe surface of the product to be exposedshall be free of defects that impair serviceability.8.2 FinishThe surface of the
25、 product to be exposed maybe smooth, grained, granulated, coated, or otherwise textured.8.3 ColorThe exposed surface of the product may be thenatural color of the fiber-cement product or may be colored bythe addition of mineral pigments, chemical impregnation,pigmented coatings, veneers, or embedded
26、 mineral granules.8.4 Holes for Nails and Supplemental FastenersHoles fornails and supplemental fasteners may be provided in the unitsduring manufacture and, if so, shall be placed as to provide therequired lap and allow for proper application of necessarysupplemental fasteners.8.5 EfflorescenceEffl
27、orescence that may appear on fiber-cement product is not a defect.8.6 WeatheringIt should be noted that on exposure acolored product will be affected by weathering which may varywith site location pitch and exposure. Any change in finishdoes not in itself detract from the minimum mechanical orphysic
28、al characteristics as specified in this standard or from thefunction of the product.9. Supplementary Shapes9.1 Supplementary shapes such as starter pieces, hip, andridge finishing pieces, and ridge rolls, shall have the samegeneral characteristics as the product they are designed tocomplement.10. In
29、spection and Acceptance10.1 Inspection of material, if required, shall be at the pointof shipment. The inspector representing the purchaser shallhave authorized access to the carriers being loaded for ship-ment to the purchaser. The purchaser shall be afforded allreasonable and available facilities
30、at the point of shipment forTABLE 1 Strength ClassificationNOTE 1Values in the table are lower limit values based on anacceptable quality level (AQL) of 4 % at a 90 % confidence level.Minimum Saturated Modulus of Rupturepsi (MPa)798 (5.5)Minimum Saturated Breaking Momentft lbf/ft (Nm/m)5.6 (25)TABLE
31、 2 Frost Resistance ClassificationGradeNo. ofCyclesRetainedStrengthUse Limitations1 0 N/A To regions where the mean annual rainfalldoes not exceed 20 in. (508 mm) and theaverage of the daily lows for any month isat least 35F (2C)- and -Consult the manufacturer for geographicalrecommendations2 25 75%
32、 To regions where the mean annual rainfalldoes not exceed 40 in. (1016 mm) and theaverage of the daily lows for any month isat least 30F (-1C)- and -Consult the manufacturer for geographicalrecommendations3 100 75% No limitationsC1225 08 (2012)2sampling and inspection of the material, which shall be
33、conducted so as not to interfere unnecessarily with the loadingof the carriers.10.2 Third party certification, either continuous or at regularintervals, shall be recognized as an alternative to lot inspection.10.3 Failure to conform to any one of the requirements ofthis specification shall constitut
34、e grounds for nonacceptance.11. Additional Requirements11.1 Additional requirements shall consist of once only testswith manufacturers statement of results provided upon cus-tomers request. Fundamental changes in formulation or meth-ods of manufacture, or both, shall require subsequent retesting.11.
35、2 Water TightnessThe specimen, when tested in accor-dance with Test Methods C1185, may show traces of moistureon the underside of the sheet, but in no instance shall there beany formation of drops of water.11.3 Frost Resistance (Freeze/Thaw) The specimens shallbe tested in accordance with Test Metho
36、ds C1185, Section 16.The ratio of strengths, before and after exposure as calculatedfrom test results, shall be as described in Table 2. Fiber-cementroofing products installation shall be limited to the parametersdescribed in the column labeled “Use Limitations.”11.4 Warm Water ResistanceThe specime
37、ns, when testedin accordance with Test Methods C1185, shall not show visiblecracks or structural alteration, such as to affect their perfor-mance in use. The ratio of strengths, before and after exposureas calculated from test results, shall be 80 %.11.5 Heat/Rain ResistanceThe specimens, when teste
38、d inaccordance with Test Methods C1185, (Part 15) for 25 cyclesshall not show visible cracks or structural alteration of theroofing such as to affect their performance in use.12. Keywords12.1 breaking moment; color; density; efflorescence; fiber-cement; fiber-reinforced; finish; frost resistance; he
39、at/rain test;inorganic fibers; inspection; length; mechanical properties;modulus of rupture; moisture content; non-asbestos; organicfibers; physical properties; roofing; sampling; shakes; shingles;slates; thickness; tolerance; water absorption; water tightness;width; workmanshipASTM International ta
40、kes 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 infringement of such rights, are entirely their own r
41、esponsibility.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 standard or for additional standardsand should be addre
42、ssed 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 views known to the ASTM Committee on Standards, at t
43、he 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/).C1225 08 (2012)3
