ASTM_C_1153_-_10_2015.pdf

Designation:C115310(Reapproved 2015)Standard Practice forLocation of Wet Insulation in Roofing Systems UsingInfrared Imaging1This standard is issued under the fixed designation C1153;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 applies to techniques that employ infraredimaging at night to determine the location of wet insulation inroofing systems that have insulation above the deck in contactwith the waterproofing.This practice includes ground-basedand aerial inspections.(WarningExtreme caution shall betaken when accessing or walking on roof surfaces and whenoperating aircraft at low altitudes,especially at night.)(WarningIt is a good safety practice for at least two peopleto be present on the roof surface at all times when ground-based inspections are being conducted.)1.2 This practice addresses criteria for infrared equipmentsuch as minimum resolvable temperature difference,spectralrange,instantaneous field of view,and field of view.1.3 This practice addresses meteorological conditions underwhich infrared inspections shall be performed.1.4 This practice addresses the effect of roof construction,material differences,and roof conditions on infrared inspec-tions.1.5 This practice addresses operating procedures,operatorqualifications,and operating practices.1.6 This practice also addresses verification of infrared datausing invasive test methods.1.7 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.8This 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.Specific precau-tionary statements are given in 1.1.2.Referenced Documents2.1 ASTM Standards:2C168 Terminology Relating to Thermal InsulationD1079 Terminology Relating to Roofing and WaterproofingE1149 Definitions of Terms Relating to Ndt by InfraredThermography(Withdrawn 1991)3E1213 Practice for Minimum Resolvable Temperature Dif-ference for Thermal Imaging Systems2.2 ANSI-ASHRAE Standard:ANSI-ASHRAE Standard 101Application of InfraredSensing Devices to the Assessment of Building Heat LossCharacteristics42.3 ISO Standard:ISO/DP 6781.3EThermal InsulationQualitative Detec-tion of Thermal Irregularities in Building EnvelopesInfrared Method43.Terminology3.1 Definitions:3.1.1 blackbody,nthe ideal,perfect emitter and absorberof thermal radiation.It emits radiant energy at each wavelengthat the maximum rate possible as a consequence of itstemperature,and absorbs all incident radiance.(See Terminol-ogy C168.)3.1.2 core,n,na small sample encompassing at least 13cm2of the roof surface area taken by cutting through the roofmembrane and insulation and removing the insulation todetermine its composition,condition,and moisture content.3.1.3 detection,nthe condition at which there is a consis-tent indication that a thermal difference is present on thesurface of the roof.Detection of thermal anomalies can beaccomplished when they are large enough and close enough tobe within the spatial resolution capabilities of the imagingsystem;that is,when their width is at least two times the1This practice is under the jurisdiction of ASTM Committee C16 on ThermalInsulation and is the direct responsibility of Subcommittee C16.30 on ThermalMeasurement.Current edition approved Sept.1,2015.Published October 2015.Originallyapproved in 1990.Last previous edition approved in 2010 as C1153 10.DOI:10.1520/C1153-10R15.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 product of the instantaneous field of view(IFOV)(see 3.1.8)ofthe system and the distance from the system to the surface ofthe roof divided by 1000.3.1.4 emittance,nthe ratio of the radiant flux emitted bya specimen to that emitted by a blackbody at the sametemperature and under the same conditions.(See TerminologyC168.)3.1.5 expansion joint,na structural separation or flexibleconnection between two building elements that allows freemovement between the elements without damage to the roofingor waterproofing system.(See Terminology D1079.)3.1.6 field-of-view,(FOV),nthe total angular dimens