ASTM_D_6757_-_07_2013.pdf

Designation:D675707(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 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)inorganic 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 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,associated 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-Saturated 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 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 inorganic 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 uniformly 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).Thefinished 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 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 jurisdiction 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: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 Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 8.1.1 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 HeatingUse 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 merelystates 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 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 specific