ASTM_E_2264_-_05_2013.pdf

Designation:E226405(Reapproved 2013)Standard Practice forDetermining the Effects of Temperature Cycling onFenestration Products1This standard is issued under the fixed designation E2264;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.Scope1.1 This practice covers the testing of any fenestrationproducts that are installed with the exterior surface exposed toweathering conditions.It is intended to measure the responseof the fenestration product to temperature cycles with thetemperature changes being induced by controlling the airtemperature on the exterior(weather side)or by exposing theproduct to infrared radiation,or both.When tested using thispractice,fenestration products are exposed to standard cyclesof elevated and depressed ambient air and surface tempera-tures.Test methods are specified for evaluating changes inperformance that may occur as a result of temperature cycling.With this practice,seasonal and diurnal temperature conditionsare simulated in a controlled laboratory apparatus.1.2 In this practice,two test methods,Test Method A andTest Method B,are described for exposing the exterior surfaceof fenestration products to the elevated portion of a standard-ized temperature cycle.The purpose for providing two testmethods of exposure is to address two distinct needs of thefenestration industry.1.2.1 Test Method A uses infrared radiation to increase thesurface temperature of the fenestration product and uses ablack panel temperature sensor placed in front of the speci-mens exterior surface to sense the temperature.The surfacetemperature of the black panel temperature sensor is raised toa preset level above the exterior ambient air temperature.Thisprovides a more realistic test for temperature exposure basedon atmospheric solar radiation and its effect on the temperatureincrease of exterior building materials.This method should beused when the number of cycles can be large and the outcomeis critical for field correlation.Test Method A is intended forcomparative product evaluations.1.2.2 Test Method B uses elevated temperature produced byconvective hot air to achieve the exterior air temperatureset-point.It provides a more sever test because it elevates theexterior air temperature to levels that are not obtainable underin-service conditions.This provides a more rapid degradationcycle for accelerating the effects of the temperature exposurecycling on some materials and fastening methods used infenestration products.This method is intended to be used whenthe number of temperature cycles must be minimized or theoutcome is not critical for field correlation.Test Method B isintended for research and development purposes and not forcomparative product evaluations.1.3 In this practice,three temperature exposure levels aresuggested for each method:Level 1 is a low temperatureexposure,Level 2 is a moderate temperature exposure,andLevel 3 is a high temperature exposure.The purpose ofproviding three levels of temperature exposure is to accommo-date different grades of fenestration products based on theirdesigns and their potential geographic installation locations.Other temperature levels may be selected by the specifier.1.3.1 Performance characteristic measurements are used toevaluate the effects on the fenestration product caused bytemperature cycling.They are measured by the following tests:1.3.1.1 Air leakage rates shall be measured in accordancewith Test Method E283.1.3.1.2 Water penetration resistance shall be measured inaccordance with Test Method E331 or Test Method E547.1.3.1.3 Structural strength shall be measured in accordancewith Test Method E330.This test shall only be performed whenspecified and only after temperature cycling is completed.1.3.2 The test specifier may also choose additional tests tocharacterize fenestration product performance.(See Note 3 forsuggested additional tests.)1.3.3 For the purposes of product comparison,these testsare performed at or near standard laboratory conditions,but forresearch and development purposes,they may also be per-formed during an elevated or depressed portion of the tempera-ture cycle in order to measure the effects of the temperatureextreme on the performance parameter being evaluated.For thepurposes of comparative evaluation,the parameters defined in11.2 shall be used.1.4 Values reported in SI units are to be regarded as thestandard.The units reported in parentheses are for informationonly.1This practice is under the jurisdiction of ASTM Committee E06 on Perfor-mance of Buildings and is the direct responsibility of Subcommittee E06.51 onPerformance of Windows,Doors,Skylights and Curtain Walls.Current edition approved Nov.1,2013.Published December 2013.Originallyapproved in 2005.Last previous edition approved in 200