We can easily do shading studies on home designs to determine exactly how much direct sun will come in through each window at any given time on any given day of the year. So what is the algorithm for getting this right? The variables are:
The orientation of the window
Distance to the top of the window glass
Distance to the bottom of the window glass
Average outside temperature by day and hour
Distance to, the direction of, and distance out of any side projections.
To this point, I have set days of the year (i.e. June 1 and October 1) when I would allow 10% direct light at 10 am and 6 pm. Totally arbitrary points with no reason beyond a hunch. There must be a more reasoned way of approaching this. Right?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part