LBT 1 Window Construction U-Factor or U-Value?

Hi @chris and @edpmay,

Do you know whether, in general, manufacturers specify their glazing performances in U-values or U-factors?

For example, on this page, could I plug those values directly into the SimpleGlazing component, or would I need to do a conversion first?

Another point of confusion: the above website appears to be specifying performance metrics for the window system, i.e. glazing+frame (I assume that’s what Whole of Window means), but this would clearly depend on the size of the window (which would affect the ratio of frame to glazing).

Would love to hear your thoughts on this!