1、Designation: D 6757 07Standard Specification forUnderlayment Felt Containing Inorganic Fibers Used inSteep-Slope Roofing1This standard is issued under the fixed designation D 6757; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, th
2、e year of last revision. 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 (1) inorganic fiber-reinforcedorganic felt underlayment and (2) inorganic fiber-b
3、ased 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 stated in SI u
4、nits 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, associated with it
5、s 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:2D 146 Test Methods for Sampling and Testing Bitumen-Saturated Felts and
6、Woven Fabrics for Roofing and Wa-terproofingD 228 Test Methods for Sampling, Testing, and Analysis ofAsphalt Roll Roofing, Cap Sheets, and Shingles Used inRoofing and WaterproofingD 1079 Terminology Relating to Roofing and Waterproof-ingD 4869 Specification for Asphalt-Saturated Organic FeltUnderlay
7、ment Used in Steep Slope RoofingF 1087 Test Method for Linear Dimensional Stability of aGasket Material to Moisture3. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to Terminology D 1079.4. Classification4.1 Organic felts that are reinforced with inorganic fibe
8、rs 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 uniformly
9、 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). Thefinishe
10、d 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 visib
11、le 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 MethodsD 146.1This specification is under the jurisdict
12、ion of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.02on Prepared Roofings, Shingles and Siding Materials.Current edition approved May 1, 2007. Published May 2007. Originallyapproved in 2002. Last previous edition approved in 2005 as D 6757 05.2
13、For 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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C
14、700, West Conshohocken, PA 19428-2959, United States.8.1.1 Tear StrengthUse test method in accordance withTest Methods D 228.8.1.1.1 Precision and BiasA precision and bias statementis to be determined.8.1.2 Pliability TestUse test method in Test MethodsD 228.8.1.3 Behavior on HeatingUse test method
15、in Test Meth-ods D 228.8.1.4 Liquid Water TransmissionUse test method in ac-cordance with Specification D 4869.8.1.4.1 Precision and BiasNo statement is made abouteither the precision or bias of this test method of measuringresistance to liquid water transmission since the result merelystates whethe
16、r or not there is conformance to the criteriaspecified in the procedure.8.2 Determine the dimensional stability of the product byTest Method F 1087.8.2.1 Measure the expansion of the product in going fromthe conditioned state to the water immersion state.8.2.2 Precision and BiasTo be determined.9. I
17、nspection9.1 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 rejec-tion. In c
18、ase 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 product package shall
19、 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 than 3 % of the r
20、olls 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 respecting the validity
21、 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 standard is subject
22、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 International Headquarters
23、. 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.This standard is
24、 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 serviceas
25、tm.org (e-mail); or through the ASTM website(www.astm.org).TABLE 1 Performance RequirementsTear strength, min at 23 6 2C, (73 6 4F),N, (lbf)4.0, (0.88) (in any direction)Pliability at 23 6 2C, (73 6 4F), the ten stripstested shall not crack when bent 90at a uniform speed over a 19 mm (0.75 in.)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, %1.65D6757072
