ISO10077-2providesastandardizedmethodforcalculatingthethermaltransmittance(U-value)ofwindows,doors,andshutters.Thisinternationalstandardspecifiesdetailedproceduresfordeterminingthethermalperformanceofthesebuildingcomponents,takingintoaccountfactorssuchasframematerials,glazingsystems,andedgespacers.ThecalculationmethodoutlinedinISO10077-2enablesaccurateassessmentofheattransferthroughfenestrationproducts,whichisessentialforevaluatingenergyefficiencyinbuildings.ThestandardcomplementsISO10077-1byprovidingmoredetailedcalculationapproachesforcomplexwindowanddoorconfigurations.Byfollowingtheprescribedmethodology,manufacturers,engineers,andenergyassessorscanobtainreliableU-valueresultsthatarecomparableacrossdifferentproductsandregions.Thestandardisparticularlyimportantforcompliancewithbuildingenergycodesandfordemonstratingproductperformanceinvariousclimateconditions.
