ASTM_D_6950_-_D_6950M_-_04_2012e1.pdf

Designation:D6950/D6950M04(Reapproved 2012)1Standard Practice forApplication of Heat Weldable Atactic Polypropylene(APP)Modified Bituminous Waterproofing Membranes Systems forNew Building Decks1This standard is issued under the fixed designation D6950/D6950M;the number immediately following the designation indicates theyear of original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEUnits information was editorially corrected in January 2013.1.Scope1.1 This practice covers the minimum application recom-mendations for heat weldable atactic polypropylene(APP)modified bituminous systems used as part of a new horizontalwaterproofing system over occupied spaces of buildings wherecovered by a separate wearing course.1.2 For the purpose of this practice,the substrate shall bestructurally sound,sloped to drain,able to accept the weight ofthe membrane and other system materials,and meet the localbuilding code requirements.Similarly,all components of thewaterproofing system are assumed to comply with any federal,state,and local environmental regulations that may be in effectat the time of installation.Expansion joints,insulation,drain-age layers,protection boards,filter sheets,and the wearingsurfaces are beyond the scope of this practice.1.3 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D41 Specification for Asphalt Primer Used in Roofing,Dampproofing,and WaterproofingD1079 Terminology Relating to Roofing and WaterproofingD4586 Specification for Asphalt Roof Cement,Asbestos-FreeD5295 Guide for Preparation of Concrete Surfaces for Ad-hered(Bonded)Membrane Waterproofing SystemsD5898 Guide for Details for Adhered Sheet WaterproofingD5957 Guide for Flood Testing Horizontal WaterproofingInstallationsD6222 Specification forAtactic Polypropylene(APP)Modi-fied Bituminous Sheet Materials Using Polyester Rein-forcementsD6223 Specification forAtactic Polypropylene(APP)Modi-fied Bituminous Sheet Materials Using a Combination ofPolyester and Glass Fiber ReinforcementsD6451 Guide for Application of Asphalt Based ProtectionBoardD6506 Specification for Asphalt Based Protection Board forBelow-Grade Waterproofing2.2 American Concrete Institute Standard:ACI 301 Specifications for Structural Concrete for Build-ings32.3 FMRC Standard:FM 4470 Approval Standard,Class Roof Covers,latestedition;where applicable for corrosion resistant compo-nents43.Terminology3.1 Definitions:3.1.1 For definition of terms,see Terminology D1079.3.1.2 construction jointa butt joint formed in a structuralslab in order to end one pour and start another pour later.The1This practice is under the jurisdiction ofASTM Committee D08 on Roofing andWaterproofing and is the direct responsibility of Subcommittee D08.22 on Water-proofing and Dampproofing Systems.Current edition approved July 1,2004.Published January 2013.Originallyapproved in 2004.Last previous edition approved in 2004 as D6950 04.DOI:10.1520/D6950_D6950M-04R12E01.2For 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.3Available from American Concrete Institute(ACI),P.O.Box 9094,FarmingtonHills,MI 48333-9094,http:/www.concrete.org.4Available from Factory Mutual Research,11511 Boston-Providence Turnpike,P.O.Box 9102,Norwood,MA 02062-9102.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 joint is usually a cold joint and maybe held together withreinforcing steel in the slab,or the steel may be discontinuousby design.3.1.3 heat weldingthe attachment and joining of the modi-fied bitumen membrane sheet by heating its surface with atorch,hot air,or other means of direct thermal contact.4.Significance and Use4.1 This practice provides general procedures,information,guidelines,and precautions for the application of heat weldedmodified bituminous waterproofing systems used as part of anew horizontal waterproofing system.4.2 This practice is not all-inclusive and is intended only tosupplement detailed instructions from designers and systemmanufacturers.4.3 The horizontal(low sloped)deck or substrate referred toin this practice is reinforced ca