My sliding door was a a drafty one , the center wind seal that separates the two sides has shrunk and lets air in. I have been putting off replacing it while doing other reno's but it will be removed next year or the year after. I' will probably put in a single glass door as a compromise when I replace it.
bubble wrap inside of the 10 mil would of worked great I bet, I may test it.
I have not insulated my two small single panes yet so I can do the test / application.
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