ASTM_D_7793_-_21.pdf

Designation:D779321Standard Specification forInsulated Vinyl Siding1This standard is issued under the fixed designation D7793;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.Scope*1.1 This specification establishes requirements for insulatedvinyl siding,which is vinyl siding with integral foam plasticinsulating material,where the vinyl siding is manufacturedfrom rigid PVC compound.Compliance with this standardrequires insulated vinyl siding to demonstrate a thermal insu-lation value of R-2.0 or greater.Other performance require-ments and test methods addressed by this standard includematerials properties and dimensions,warp,shrinkage,impactstrength,expansion,appearance,thermal distortion resistance,flame spread,and windload resistance.Methods of indicatingcompliance with this specification are also provided.NOTE1Insulated vinyl siding is composed of two major components:the vinyl siding and the insulating material.It is intended that the vinylsiding portion comply with Specification D3679.Applicable portions ofSpecification D3679 are included in this specification.Additional require-ments that pertain only to the insulation as a separate material,or to thecombination of vinyl siding and insulation as a whole,are also included.For further explanation,see Appendix X1.1.2 Insulated vinyl siding shall be tested with the insulationmaterial in place or removed,as specified in the applicablerequirement or test method.1.3 The use of PVC recycled plastic in this product shall bein accordance with the requirements in Section 4.1.4 Insulated vinyl siding produced to this specificationshall be installed in accordance with Practice D4756.Refer-ence shall also be made to the manufacturers installationinstructions for the specific product to be installed.1.5 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.1.6 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,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.NOTE2There is no known ISO equivalent to this standard.1.7 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 ASTM Standards:2C297/C297M Test Method for Flatwise Tensile Strength ofSandwich ConstructionsC578 Specification for Rigid,Cellular Polystyrene ThermalInsulationC591 Specification for Unfaced Preformed Rigid CellularPolyisocyanurate Thermal InsulationC1199 Test Method for Measuring the Steady-State ThermalTransmittance of Fenestration Systems Using Hot BoxMethodsC1289 Specification for Faced Rigid Cellular Polyisocyanu-rate Thermal Insulation BoardC1363 Test Method for Thermal Performance of BuildingMaterials and Envelope Assemblies by Means of a HotBox ApparatusD618 Practice for Conditioning Plastics for TestingD635 Test Method for Rate of Burning and/or Extent andTime of Burning of Plastics in a Horizontal PositionD696 Test Method for Coefficient of Linear Thermal Expan-sion of Plastics Between 30C and 30C with a VitreousSilica DilatometerD1042 Test Method for Linear Dimensional Changes ofPlastics Caused by Exposure to Heat and MoistureD1183 Practices for Resistance of Adhesives to CyclicLaboratory Aging ConditionsD1435 Practice for Outdoor Weathering of PlasticsD2244 Practice for Calculation of Color Tolerances andColor Differences from Instrumentally Measured ColorCoordinatesD2457 Test Method for Specular Gloss of Plastic Films andSolid Plastics1This specification is under the jurisdiction of ASTM Committee D20 onPlastics and is the direct responsibility of Subcommittee D20.24 on Plastic BuildingProducts.Current edition approved Dec.1,2021.Published December 2021.Originallyapproved in 2012.Last previous edition approved in 2020 as D7793 20.DOI:10.1520/D7793-21.2For 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.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationall