We're building our new house and we're just about to decide where and which windows to order. I see all kinds of U values trying to sell either the glazing (double with LOW-E / Sunergy / ... coating) and another set of U values for different kind of frame profiles (aluminium / thermic aluminium / uPVC) I'm trying to figure out how much of an effect it makes to have a lower U value, but then I thought: where is it wiser to put our money?
Does a lower U value for the frame worth the money or should I concentrate on the glazing and invest more into a "better" coating or wider glass?
Does a lower U value for the frame worth the money or should I concentrate on the glazing and invest more into a "better" coating or wider glass?