ASTM_C_726_-_17.pdf

Designation:C72617Standard Specification forMineral Wool Roof Insulation Board1This standard is issued under the fixed designation C726;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers the composition and physicalproperties of mineral wool insulation board used above struc-tural roof decks in building construction.The mineral woolroof insulation acts as a base for systems such as single-ply,polymer-modified bitumen and built-up roof.This specificationalso covers mineral wool insulation boards that incorporate afibrous high density upper layer on the top surface1.2 It is possible that the use of thermal insulation materialscovered by this specification will be regulated by buildingcodes or other agencies that address fire performance,or both.The fire performance of the material needs to be addressedthrough standard fire test methods established by the appropri-ate governing documents.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered 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 the regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 The following standards,of the issue in effect on thedate of material purchase,form a part of this specification tothe extent specified herein:2.2 ASTM Standards:2C165 Test Method for Measuring Compressive Properties ofThermal InsulationsC168 Terminology Relating to Thermal InsulationC177 Test Method for Steady-State Heat Flux Measure-ments and Thermal Transmission Properties by Means ofthe Guarded-Hot-Plate ApparatusC203 Test Methods for Breaking Load and Flexural Proper-ties of Block-Type Thermal InsulationC209 Test Methods for Cellulosic Fiber Insulating BoardC303 Test Method for Dimensions and Density of Pre-formed Block and BoardType Thermal InsulationC390 Practice for Sampling and Acceptance of ThermalInsulation LotsC518 Test Method for Steady-State Thermal TransmissionProperties by Means of the Heat Flow Meter ApparatusC665 Specification for Mineral-Fiber Blanket Thermal Insu-lation for Light Frame Construction and ManufacturedHousingC1363 Test Method for Thermal Performance of BuildingMaterials and Envelope Assemblies by Means of a HotBox ApparatusC1763 Test Method for Water Absorption by Immersion ofThermal Insulation MaterialsD312 Specification for Asphalt Used in RoofingD482 Test Method for Ash from Petroleum ProductsD450 Specification for Coal-Tar Pitch Used in Roofing,Dampproofing,and Waterproofing1This specification is under the jurisdiction of ASTM Committee C16 onThermal Insulation and is the direct responsibility of Subcommittee C16.20 onHomogeneous Inorganic Thermal Insulations.Current edition approved March 1,2017.Published April 2017.Originallyapproved in 1972.Last previous edition approved in 2012 as C726 12.DOI:10.1520/C0726-17.2For 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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 D2126 Test Method for Response of Rigid Cellular Plasticsto Thermal and Humid AgingE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE2058 Test Methods for Measurement of Material Flamma-bility Using a Fire Propagation Apparatus(FPA)2.3 Other Referenced Documents:CAN/ULC-S102 Standard Method of Test for Surface Burn-ing Characteristics of Building Materials and Assemblies3EN 12430:1998/A1 Thermal Insulating Product for Build-ing Applications Determination of Behaviour UnderPoint Load4FM 4470 Approval Standard for Single-Ply,Poly