Windows and insulation
A portion of my bedroom ceiling is vaulted into a dormer. The dormer window is energy efficient (low e, etc). The window faces east and when the sun shines the vaulted area is noticeably warmer.
I want to try and insulate the window further. Would a film help, and if so would the film need to be rated by any specific industry standard? I have seen several stained glass films, but don’t know if they would help with energy efficiency. Or, would a honeycomb shade work?
I really want to let the light in while improving the energy efficiency of the existing window, if that is possible. I’m in zone 4a. Any advice appreciated!
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