Joke,
I think you should only consider the g-value of the shading device when calculating external shading factor. The g-value
of the window is handled separately. So if the g-value of your shading device is 0.23, the external shading
factor becomes 1 - 0.23 = 0.77.
Someone please correct me if I am wrong.
Kind regards,
Knut Erik Enerstvedt
>Dear trnsys-users,
>I’ve a question about how to calculate the external shading factor (multizone building). Is the following correct?
>Suppose I’ve a window with a g-value of 0,37 and a g-value of 0,23 (external shading device + window).
>The external shading factor becomes then: 1 – (gwindow+shadingdevice/ gwindow) = 1- (0.23/0.37) = 0.38
>Kind regards,
>Joke De Beuckelaer
>project engineer mep