what coatings on windows will help:luxury home has has high air conditioning costs and sun bleaches floor?

Living room 4 double rows of windows facing east and two facing north [each has 2 windows one above the other], metal frames,85" high 45" wide; dining room has 4 single window rows facing east. We have very high energy bills because of air conditioning and the sun bleaches the wooden windows. We do not want to replace the windows but we would consider a coating or even motorized storm windows that we could leave down during the day or half=way down.

Answers:
Besides the films, you can re-screen your windows with denser material available at those big box stores. It isnt a difficult job and requires only an inexpensive spline tool, scissors and, perhaps, new splinning material. The link will give you an idea of the material:

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