1、Designation: D6757 07 (Reapproved 2013)Standard Specification forUnderlayment Felt Containing Inorganic Fibers Used inSteep-Slope Roofing1This standard is issued under the fixed designation D6757; 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 () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers (1) inorganic fiber-reinforcedorganic felt underlayment and (2) in
3、organic fiber-based felt foruse as underlayment with steep-slope roofing products. Theintent of this specification is to provide criteria for producingand evaluating underlayments with a significantly reducedtendency to wrinkle before or after the installation of steeproofing products.1.2 The values
4、 stated in SI units are to be regarded as thestandard. The values in parentheses are for information only.1.3 The following safety hazards caveat pertains only to thetest method portion, Section 8, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, ass
5、ociated with its use. It is the responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory require-ments prior to use.2. Referenced Documents2.1 ASTM Standards:2D146 Test Methods for Sampling and Testing Bitumen-Satura
6、ted Felts and Woven Fabrics for Roofing andWaterproofingD228 Test Methods for Sampling, Testing, and Analysis ofAsphalt Roll Roofing, Cap Sheets, and Shingles Used inRoofing and WaterproofingD1079 Terminology Relating to Roofing and WaterproofingD4869 Specification for Asphalt-Saturated Organic Felt
7、 Un-derlayment Used in Steep Slope RoofingF1087 Test Method for Linear Dimensional Stability of aGasket Material to Moisture3. Terminology3.1 DefinitionsFor definitions of terms used in thisspecification, refer to Terminology D1079.4. Classification4.1 Organic felts that are reinforced with inorgani
8、c fibers arecovered by this specification.4.2 Inorganic fiber-based asphaltic and nonasphaltic feltsare covered by this specification.5. Materials and Manufacture5.1 In the process of manufacture, a single thickness ofinorganic mat or organic felt that is reinforced with inorganicfibers shall be uni
9、formly saturated or coated.6. Performance Requirements6.1 The material shall conform to the physical requirementsprescribed in Table 1.6.2 The finished product shall not crack nor be so sticky asto cause tearing or other damage upon being unrolled attemperatures between 1 and 60C (30 and 140F). Thef
10、inished product shall pass the water shower exposure test inaccordance with 8.1.4, indicating resistance to liquid watertransmission.7. Dimensions, Masses, Workmanship, Finish, andAppearance7.1 Dimensions and masses to be agreed upon betweenbuyer and seller.7.2 The finished material shall be free of
11、 visible externaldefects, such as holes, ragged or untrue edges, breaks, cracks,tears, bulges, and indentations.8. Sampling and Test Methods8.1 Sample the material and determine the properties enu-merated in this specification in accordance with Test MethodsD146.1This specification is under the juri
12、sdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.02on Steep Roofing Products and Assemblies.Current edition approved June 15, 2013. Published July 2013. Originallyapproved in 2002. Last previous edition approved in 2007 as D6757 07. DOI:
13、10.1520/D6757-07R13.2For 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 the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Ha
14、rbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States18.1.1 Tear StrengthUse test method in accordance withTest Methods D228.8.1.1.1 Precision and BiasA precision and bias statementis to be determined.8.1.2 Pliability TestUse test method in Test MethodsD228.8.1.3 Behavior on Heati
15、ngUse test method in Test Meth-ods D228.8.1.4 Liquid Water TransmissionUse test method in ac-cordance with Specification D4869.8.1.4.1 Precision and BiasNo statement is made abouteither the precision or bias of this test method of measuringresistance to liquid water transmission since the result mer
16、elystates whether or not there is conformance to the criteriaspecified in the procedure.8.2 Determine the dimensional stability of the product byTest Method F1087.8.2.1 Measure the expansion of the product in going fromthe conditioned state to the water immersion state.8.2.2 Precision and BiasTo be
17、determined.9. Inspection9.1 Inspection of the material shall be made as agreed uponbetween the purchaser and the supplier as a part of the purchasecontract.10. Rejection and Resubmittal10.1 Failure to conform to any of the requirements pre-scribed in this specification shall constitute grounds for r
18、ejec-tion. In case of rejection, the seller shall have the right tore-inspect the rejected material and resubmit the lot afterremoval of those packages not conforming to the requirements.11. Packaging and Package Marking11.1 Unless otherwise agreed upon between the supplier andpurchaser, each produc
19、t package shall be plainly marked withthe suppliers name, the product brand, and the ASTM desig-nation.11.2 The rolls shall be securely wrapped or banded in amanner that completely encircles the roll and will preventslipping or unrolling.11.3 No roll shall contain more than two pieces, and nomore th
20、an 3 % of the rolls in any lot shall contain two pieces.If a roll contains a manufacturing splice, the splice shall beclearly marked.12. Keywords12.1 coated fiberglass mat; fiberglass; inorganic fibersre-inforced; organic felt; steep roofing; underlaymentASTM International takes no position respecti
21、ng 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 stand
22、ard 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 Internation
23、al 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.T
24、his 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
25、), 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/).TABLE 1 Performance RequirementsTear strength, min at 23 2C, (73 4F),N, (lbf)4.0, (0.88) (in anydirection)Pliabil
26、ity at 23 2C, (73 4F), the tenstripstested shall not crack when bent 90at a uniform speed over a 19 mm (0.75in.)radius corner in 2 spassBehavior (loss) on heating at 105C(221F)for 5 h, max, %4Liquid water transmission test passDimensional stability,low humidity to high humidity,max elongation, %1.65D6757 07 (2013)2
