Sealing the door weatherstripping was a big improvement and resulted in a reduction of noise from the stairwell area.
I had some QuietCoat left over from another project. Though it was not meant for wood, I did coat the entire interior surface of the door. There seemed to be a slight reduction in sound.
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I bought some acoustic foam to fill in the thin area of the door panels. This resulted in no noticeable improvement.
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Some things to consider. Make sure that your door hinges can handle the extra weight of the MLV. Ok, now I was left with a really UGLY! door. Stay tuned for Part 3, where I solve this problem.
.........contiune
Part 3 of soundproofing your door
I had some QuietCoat left over from another project. Though it was not meant for wood, I did coat the entire interior surface of the door. There seemed to be a slight reduction in sound.

I bought some acoustic foam to fill in the thin area of the door panels. This resulted in no noticeable improvement.
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I then purchased some MLV/Mass Loaded Vinyl which had one side with adhesive. The MLV will help block the sound. I layed the MLV out on the floor and trimmed it to the size of the door I then attached it to the interior of the door, covering the whole surface. I used some small nails to further secure the sheet of MLV to the door. Also, the MLV is rather heavy, so you may want a friend to help. This further reduced the noise from the outside stairwell.
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Door covered with MLV
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Some things to consider. Make sure that your door hinges can handle the extra weight of the MLV. Ok, now I was left with a really UGLY! door. Stay tuned for Part 3, where I solve this problem.
.........contiune
Part 3 of soundproofing your door
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