sound proofing basement apartment - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 2 Old 02-02-2020, 11:02 AM - Thread Starter
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sound proofing basement apartment

Hi there

I have been told this is the best place to ask for soundproofing advice.

Here is the current situation: finishing a new basement apartment with a room for my personal use (home theatre).

As per suggestions here I am doing this on ceiling
  • thin layer of spray foam
  • roxsul
  • resilient channel
  • double 5/8 with green glue

The 2 walls that are in common with tenant area I am doing same as above.

The floor is vinyl with baricade subfloor which has plastic bottom to let some water thru and ply on top of it. I understand this will keep the floor warm as well.

I have been doing a lot of reading and also talking to other people who did their basements who complain that regardless of however much ceiling is soundproofed, the sound still travels thru ducts.


Just a note here: the contractor says he will drop the wents to bottom of the walls since heat rises. But we use AC in summers, so not sure sound and AC wise if this is good practise or not.

Second question, should I do anything about soundproofing the electical outlet boxes in the shared wall?



Questions:
  • what can I do about soundproofing the ducts without spending arm and a leg?
  • Is heavy ceiling soundproofing worth it if sound will travel thru ducts anyway?
  • What is the best course of action for me here?


Thank you!
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post #2 of 2 Old 02-11-2020, 05:58 AM - Thread Starter
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sound proofing the vents /ducts - frustrated

Hi everyone

I am really struggling with this and need some help.

What would best work for ducts/vents?

I found these so far dont know if any of them work
  • sound maze filter
  • rubber insulation
  • insulated flex ducting

I do really need soundproofing for vents even if I have to spend few thousand more.
This is currently unfinished basement and the best time to do it.

Thanks
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