Two ways of doing it, both involve attaching a material to one or both sides of the door.
You want a sound-absorbant texture that captures sound and doesn't release it. Egg carton squares, the ones that come in the boxed eggs that seperate the layers, are the cheap solution. You can cut them up, use sticky-tack to attach and make a custom fitting with minimal resources and time. You can order them online, getting them for about $1 per square or so.
The expensive way is to purchase sound-absorbing foam, used to line sound booths in studios. They cost about ten dollars per square foot and physically resemble those very same egg cartons I mentioned earlier.
It looks like cork might be a good middle-of-the-road solution. I just found this webpage on a lucky search. It might be what you need as a reference. https://silencewiki.com/category/soundproofing/
The issue is the door itself - and all the edges where the door meets the wall. And - if your internal walls aren't well-insulated (many are not), you may still not achieve your goal. That being said, don't forget the value of plain old paper-fiber egg cartons - especially the big flat ones for twenty-fours. You might get those inexpensively from a restaurant that serves breakfast.
If it is a hollow-core door, consider replacing it with solid core. Weatherstrip. Acoustic tile on the faces, keeping clearance for swing. Agree with the distrust of egg cartons, due to fire spread.
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branchandroot
no subject
Date: 2023-06-25 05:45 am (UTC)You want a sound-absorbant texture that captures sound and doesn't release it. Egg carton squares, the ones that come in the boxed eggs that seperate the layers, are the cheap solution. You can cut them up, use sticky-tack to attach and make a custom fitting with minimal resources and time. You can order them online, getting them for about $1 per square or so.
The expensive way is to purchase sound-absorbing foam, used to line sound booths in studios. They cost about ten dollars per square foot and physically resemble those very same egg cartons I mentioned earlier.
no subject
Date: 2023-06-25 11:10 am (UTC)https://silencewiki.com/category/soundproofing/
no subject
Date: 2023-06-25 12:36 pm (UTC)First, make sure the door can be sealed with insulation strips. If it's air tight sound won't leak.
Foam acoustic tiles will help although they will cost money - but they're not a fire hazard.
no subject
Date: 2023-06-25 05:46 am (UTC)https://www.bobvila.com/articles/how-to-soundproof-a-door/
The issue is the door itself - and all the edges where the door meets the wall. And - if your internal walls aren't well-insulated (many are not), you may still not achieve your goal. That being said, don't forget the value of plain old paper-fiber egg cartons - especially the big flat ones for twenty-fours. You might get those inexpensively from a restaurant that serves breakfast.
no subject
Date: 2023-06-25 09:11 am (UTC)no subject
Date: 2023-06-25 01:08 pm (UTC)