ASTM_E_2485_-_E_2485M_-_13.pdf

Designation:E2485/E2485M13Standard Test Method forFreeze/Thaw Resistance of Exterior Insulation and FinishSystems(EIFS)and Water Resistive Barrier Coatings1This standard is issued under the fixed designation E2485/E2485M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method covers procedures for determining theeffect of freezing and thawing of exterior insulation and finishsystems(EIFS),an EIFS with water-resistive barrier coatings,and water-resistive barrier coatings by itself.1.2 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.1.3 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 to determine theapplicability of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E631 Terminology of Building ConstructionsE2110 Terminology for Exterior Insulation and Finish Sys-tems(EIFS)3.Terminology3.1 For general terminology regarding EIFS and building ingeneral,see Terminology E2110(for EIFS terms)and Termi-nology E631(for buildings in general).4.Summary of Test Method4.1 Specimens are subjected to cycles of freezing andthawing.Surface changes,viewed at 5 magnification,areexamined for signs of deleterious effects,such as cracking,crazing,checking,blistering,peeling,delamination,or erosion.5.Significance and Use5.1 Resistance to freezing and thawing is a factor whendetermining the durability of EIFS,an EIFS with water-resistive barrier coatings,and water-resistive barrier coatingsby itself.6.Apparatus6.1 Compressor,Freezing Chamber,and CirculatorOfsuch design and capacity that the temperature of the air in thefreezing chamber shall not exceed 9C 16F 1 h afterintroducing the maximum charge of units.The initial tempera-ture will not exceed 32C 90F.6.2 Trays and ContainersWill be shallow,metal,and havean inside depth of 38.1 6 12.7 mm 112612in.and be ofsuitable strength and size so that the tray with a charge offrozen units can be removed from the freezing chamber by oneperson.6.3 Thawing TankShould permit complete submersion ofthe specimens in their trays.Adequate means shall be providedso that the water in the tank may be kept at a temperature of 246 5.5C 75 6 10F.6.4 Drying RoomMaintained at a temperature of 24 68C 75 6 15F,with a relative humidity between 30 and70%.The drying room should be free from drafts.7.Test Specimens7.1 Water-Resistive Barrier Coatings7.1.1 Prepare a minimum of five test specimens measuringa minimum of 150 mm26 in.2 for each substrate that will beevaluated.7.1.2 For sheathing substrates,two sheathing sections shallbe assembled with a 3.2-mm 18-in.joint.The joint shall betreated as it would in its end-use configuration.7.1.3 Apply the water-resistive barrier coating over thesubstrate surface in accordance with the manufacturers in-structions.The specimen shall be representative of those usedin actual construction.Allow the water-resistive barrier coatingto dry a minimum of 24 h.1This test method is under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and is the direct responsibility of Subcommittee E06.58on Exterior Insulation and Finish Systems(EIFS).Current edition approved Sept.1,2013.Published September 2013.Originallyapproved in 2006.Last previous edition approved in 2006 as E2485 06.DOI:10.1520/E2485_E2485M-13.2For 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 7.1.4 The back and sides of the test specimens shall besealed with an impervious material that need not be thecoating.7.2 EIFS Testing7.2.1 Prepare a minimum of five test specimens measuringa minimum of 150 mm26 in.2 and consisting of the followingmaterials:7.2.1.1 Substrate,7.2.1.2 Water-resistive barrier coating(if applicable),7.2.1.3 Insulation board,7.2.1.4 Reinforcing mesh,and7.2.1.5 Finish.7.2.2 If a water-resistive barrier coating is included as partof the EIFS System,apply the water-resistive barrier coatingover the substrate surface in accordance with the manufactur-ers instructions.The specimen shall be representative of thoseused in actual construction.7.2.3 Secure the insulation board to the substrate or water-resistive