This record declares parameters for window overhangs.
See Buildings.HeatTransfer.Windows.Overhang for an explanation of the parameters, and for the assumptions and limitations of the overhang model.
wL
and wR
to be
measured from the corner of the window instead of the centerline.
This allows changing the window width without having to adjust the
overhang parameters.
gap > 0
as a necessary condition.
There can be an overhang with no gap.