Post History

Calculating Surface temperatures of a thermal insulator

I'm interested in knowing the surface temperature of both sides of a double-pane or triple-pane window.

Given the R-value of the window, and the air temps outside and inside, **how can I calculate the temperature of both surfaces of the window**?

I plan to use this formula to help prevent condensation from occuring on either side when the house is too cold in the summer or too humid in the winter.

I've also noticed, in winter at least, that condensation only occurs on the bottom edge of the window.  I'm not sure if that's because the gasses between the panes settle out and are less isulative at the bottom, or because something about the bottom of the frame is less insulative than the sides or top.

I don't think the same is true in the summer.  I think in the summer, dew forms uniformly or around the center of the glass.