1、Designation:D282907(Reapproved 2013)Standard Practice forSampling and Analysis of Existing Built-Up Roof Systems1This standard is issued under the fixed designation D2829;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of la
2、st 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 practice is a guide for removing test specimensfrom existing built-up roofing systems in the field and fordetermining th
3、e approximate quantities of the components ofthat specimen(Note 1).Components determined may be:1.1.1 Insulation components when they are part of the roofmembrane system,1.1.2 Plies of roofing felt,1.1.3 Interply layers of bituminous material,1.1.4 Top coating,and1.1.5 Surfacing.NOTE1This procedure
4、is for the investigation of existing roofs and isnot intended for new construction inspection.1.2 This practice is applicable to both 914-mm(36-in.)and1000-mm(3938-in.)wide felt rolls.1.3 The values stated in SI(metric)units are to be regardedas standard.1.4 This standard does not purport to address
5、 all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user this standard to establish appropriatesafety and health practices and determine the applicability ofregulatory limitations prior to use.For specific precautionaryinformation,see 6.3.2.1.2.Referenced Documen
6、ts2.1 ASTM Standards:2D226 Specification for Asphalt-Saturated Organic Felt Usedin Roofing and WaterproofingD227 Specification for Coal-Tar-Saturated Organic FeltUsed in Roofing and WaterproofingD249 Specification for Asphalt Roll Roofing(Organic Felt)Surfaced with Mineral Granules(Withdrawn 2002)3D
7、250 Standard Specification for Asphalt-Saturated AsbestosFelt Used in Roofing and Waterproofing(Withdrawn1991)3D371 Specification for Asphalt Roll Roofing(Organic Felt)Surfaced with Mineral Granules;Wide Selvage(With-drawn 2002)3D1079 Terminology Relating to Roofing and WaterproofingD2178 Specificat
8、ion for Asphalt Glass Felt Used in Roofingand WaterproofingD2626 Specification for Asphalt-Saturated and Coated Or-ganic Felt Base Sheet Used in RoofingD3158 Specification for Asphalt Saturated and Coated Or-ganic Felt Used in Roofing(Withdrawn 1983)3D3617 Practice for Sampling andAnalysis of Built-
9、Up RoofSystems During ApplicationD3672 Standard Specification for Venting Asphalt-Saturatedand Coated Inorganic Felt Base Sheet Used in Roofing(Withdrawn 1990)3D3909 Specification for Asphalt Roll Roofing(Glass Felt)Surfaced With Mineral GranulesD4601 Specification for Asphalt-Coated Glass Fiber Bas
10、eSheet Used in RoofingD4897 Specification forAsphalt-Coated Glass-Fiber VentingBase Sheet Used in RoofingD4990 Specification for Coal Tar Glass Felt Used in Roofingand Waterproofing3.Terminology3.1 DefinitionsFor definitions of terms used in thispractice,refer to Terminology D1079.4.Securing of Spec
11、imens in the Field4.1 Do not disturb any surfacing in the area from which aspecimen is to be taken.Cut each specimen at least 300 by 300mm(12 by 12 in.)and use the total specimen taken in the fieldfor laboratory analysis.4.2 The recommended practice is to use a cutting template(Fig.1)consisting of a
12、 300 by 300-mm(12 by 12-in.)metalbox with an open bottom.Place the box over the roof area that1This practice is under the jurisdiction ofASTM Committee D08 on Roofing andWaterproofing and is the direct responsibility of Subcommittee D08.20 on RoofingMembrane Systems.Current edition approved May 1,20
13、13.Published May 2013.Originallyapproved in 1969.Last previous edition approved in 2007 as D2829 07.DOI:10.1520/D2829-07R13.2For 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
14、to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 is to be removed,and while the template is held
15、firmly inposition,remove the surfacing around the perimeter and thencut through the roof membrane around the perimeter of thebox.Lift the specimen,including all associated loose materials,from the roof and place it in a plastic bag.Fully identify thespecimen.Note if the insulation is adhered to the
16、specimen or,where insulation is not used,if bitumen is left on the deck,andthe type of deck.Estimate bitumen mass per unit area left onthe deck.4.2.1Alternate Method:4.2.1.1 Mark each sample as at least a square 356 mm(14in.)on a side.Try to include a seam in each membrane sample.During cold weather,use a square 457 mm(18 in.)on a side,since cold weather cutting may inadvertently break,distort ordelaminate the sample.If the roofing membrane is mechani-cally fastened,mark rectangular 864 by 457 m
