Hi all,

I'd like to be able to enter my total glazing U values in one place for
simplicity. I set my frame widths to zero and defined my window glass
type in "simplified" where I entered my total window U value in the
"Glass Conductance" field. When I check my LV-D report it shows my
windows having a lower U value than what I entered. I understand there
are some variables at play here that are likely the cause (air film
resistance and windspeed of rating (summer vs winter as shown in the
topic help). I don't understand what is going on here.

So,

Can someone shed some light on why my LV-D window U values don't match
my "Glass Conductance" value in these circumstances?

And, how would you recommend I enter my windows if I have the overall U
value already from product data?

Thanks

Riley

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Riley Beise, EIT, LEED GA