Joint U-Values according to EN ISO 12631 are calculated for mullion and transom constructions. In contrast to the frame U-value according to EN ISO 10077-2 the joint U-value already contains the thermal influence of the spacer or edge.
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Joint U-value
Summary
•The calculation of the Joint Uf-Value for the selected result object is performed either choosing the menu command Results.U-Value>Joint Uf-Value... or selecting the corresponding result object context menu command or using the U-Value tool kind Frame U-Value. All frame materials (without frame sealing) has to been marked in the opening Frame Material dialog window.
•The frame materials and other properties which influence the calculation can be adjusted in the Properties flyout
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