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Old 01-08-2017, 04:47 PM   #35 (permalink)
freebeard
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What I've found is bubble-wrap after about five years adheres to the glass and degrades. Then you can't clean it off. What I've gone to is pieces of 'clear coroplast' greenhouse glazing, cut to press fit inside the windows.

The unexpected benefit is that the horizontal flutes reflect light up to the ceiling and brighten the room.
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