1、Designation: C 1225 08Standard Specification forFiber-Cement Roofing Shingles, Shakes, and Slates1This standard is issued under the fixed designation C 1225; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision
2、. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) 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 thickness(non-tapered)
3、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 C 222), non-asbestos fiber-cement roofing shakes, shingles, and slates with designedvarying profiles and
4、 thicknesses (Specification C 1530), par-ticle board (Terminology D 1554), or cement-bonded particle-boards (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 installation li
5、terature for proper installationinstructions, to Specification C 1459 for roofing systems per-formance, and to Test Methods E 108 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 SI un
6、its that are provided for information onlyand are not considered standard.2. Referenced Documents2.1 ASTM Standards:2C 222 Specification for Asbestos-Cement Roofing ShinglesC 1154 Terminology for Non-Asbestos Fiber-ReinforcedCement ProductsC 1185 Test Methods for Sampling and Testing Non-Asbestos Fi
7、ber-Cement Flat Sheet, Roofing and SidingShingles, and ClapboardsC 1459 Specification for Performance of Non-AsbestosFiber-Reinforced Cement Shake, Shingle, and Slate Roof-ing SystemsC 1530 Specification for Non-Asbestos Fiber-CementRoofing Shakes, Shingles, and Slates with Designed Vary-ing Profile
8、s and ThicknessesD 1554 Terminology Relating to Wood-Base Fiber andParticle Panel MaterialsE 108 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 C 1154.4. 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 MethodsC 1185.6. Requirements6.1 Mechanical Requirements:1This specification is under the jurisdiction of ASTM Committee C17 onFiber-Reinforced Cement Products and is the direct responsibility of SubcommitteeC17.02 o
14、n Non-Asbestos Fiber Cement Products.Current edition approved May 1, 2008. Published May 2008. Originallyapproved in 1993. Last previous edition approved in 2004 as C 1225 04e1.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. F
15、or Annual Book of 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.1Copyright ASTM International, 100 Barr Harbor Drive, PO
16、Box C700, West Conshohocken, PA 19428-2959, United States.6.1.1 Flexural StrengthWhen tested in accordance withTest Methods C 1185, the product shall be classified accordingto its modulus of rupture. The product modulus of rupture andbreaking moment in the primary strength direction shall be notless
17、 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 loadeddirection which will resist
18、 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 strengthdirection, then cl
19、assification 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 its weakest strength dire
20、ction.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 tested in accordancewith the
21、method specified in Test Methods C 1185.6.2.2 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 Test Methods C 1185.6.2.3 M
22、oisture 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 C 1185.7. Dimensions and Permissible Variations7.1 Nominal Length, Width and ThicknessThe shapes,size
23、, and thickness shall be specified by the manufacturer.7.2 Length and Width ToleranceThe permissible variationfrom the nominal width and length shall be 614 in. (66.4 mm).The method of measurement shall be in accordance with TestMethods C 1185.7.3 Thickness ToleranceThe thickness variation from then
24、ominal thickness shall not exceed 10 % + 25 %. Themethod of measurement shall be in accordance with TestMethods C 1185.8. Workmanship and Finish8.1 WorkmanshipThe surface of the product to be ex-posed shall be free of defects that impair serviceability.8.2 FinishThe surface of the product to be expo
25、sed 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 mineral granules.8
26、.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 EfflorescenceEfflorescence that may
27、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 orphysical characteristics
28、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. Inspection and Accept
29、ance10.1 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 at the point of shi
30、pment forsampling and inspection of the material, which shall beconducted so as not to interfere unnecessarily with the loadingof the carriers.TABLE 1 Strength ClassificationNOTEValues in the table are lower limit values based on an acceptablequality level (AQL) of 4 % at a 90 % confidence level.Min
31、imum Saturated Modulus of Rupturepsi (MPa)798 (5.5)Minimum Saturated Breaking Momentft lbf/ft (Nm/m)5.6 (25)TABLE 2 Frost Resistance ClassificationGradeNo. ofCyclesRetainedStrengthUse Limitations1 0 N/A To regions where the mean annual rainfall does notexceed 20 in. (508 mm) and the average of theda
32、ily lows for any month is at least 35F (2C)- and -Consult the manufacturer for geographicalrecommendations2 25 75% To regions where the mean annual rainfall does notexceed 40 in. (1016 mm) and the average of thedaily lows for any month is at least 30F (-1C)- and -Consult the manufacturer for geograp
33、hicalrecommendations3 100 75% No limitationsC122508210.2 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 constitute grounds for nonacceptance
34、.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.11.2 Water TightnessThe specim
35、en, when tested in accor-dance with Test Methods C 1185, 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 Methods C 1185, Section 16.The r
36、atio 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 specimens, when testedin accordan
37、ce with Test Methods C 1185, shall not showvisible cracks or structural alteration, such as to affect theirperformance in use. The ratio of strengths, before and afterexposure as calculated from test results, shall be $80 %.11.5 Heat/Rain ResistanceThe specimens, when tested inaccordance with Test M
38、ethods C 1185, (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; heat/rain test;inorganic fi
39、bers; 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 takes no position respectin
40、g 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 standa
41、rd 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 Internationa
42、l 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 below.Th
43、is 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).C1225083
