I've used it around my front door and windows and it made a huge difference in keeping the heat in along with the weatherstrip. Very easy to use, no noticeable smell or blemish, this has proven to be a great affordable solution for me, the only issue would be that you want it to be a little wider so make sure and measure your gaps you're using it for want to use, but it fits most gaps around doors and windows, not where the door closes, it's a little thick to weather the inside of the door where the door seals close.
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