Cost Effective Soundproofing For New Basement

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  #1  
Old 10-07-17, 01:57 PM
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Cost Effective Soundproofing For New Basement

I am renovating my basement entirely from scratch, which involves removing and replacing the foundation so there will be more height. The flooring will be stained concrete. I plan to rent out 1-2 spaces in the basement, or possibly use the smaller space as a theater. In that case, having two tenants next to each other, or a theater room next to a bedroom means that very good sound proofing is essential. On top of that, I need to do it on a budget - ideally under $5,000 but if extra costs are necessary in order to 'do it right', then I can go up to the $10,000 range even if that breaks the . Those costs are just the costs of the soundproofing, not including the costs of regular dry wall ceiling and walls which I've covered in my initial budget. The good news is that all walls and ceilings are being put up from scratch, so it is important that I get it right on the first time. I would appreciate the advice from anybody who has experience in this area and can caution me as to what will and what will not work well. I'm also interested in understanding if a certain level of soundproofing will prevent people in other rooms from hearing voice, but will not properly buffer something more substantial like a movie with moderate bass. I've attached a picture of the general layout.

I would like to minimize the amount of unnecessary wall thickness or loss of ceiling height. The ceiling will be about 91 inches high as it is, and the floor space is already limited. I'm willing to give up some space for good soundproofing. I estimate that I need to soundproof about 1200 sq ft of ceiling and 400 sq feet of wall.

A few solutions I've looked at are:

1) Resilient Channels (est $1,000)
2) Soundproof drywall (gypsum), such as Quietrock 500 (est $2,500)
3) Acoustic Barrier (est $2,500)
4) Mass Loaded Vinyl (est $3,000)
5) SilveRboard R5 Radiant Acoustic Insulation Kit - STC (est $1,200)
6) Regular Foam/Insulation between the drywall space (est $2,000)

What the best combination of these options to install? I'm thinking the first 4 would work, but its going to push past my budget. Is there anything else you would recommend? Any advice is appreciated.

Also, the crew I'm working with are not experts in soundproofing, so I would appreciate any tips on how to install it correctly and avoid common mistakes.
 
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Last edited by jdwclemson; 10-07-17 at 02:13 PM.
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Old 10-07-17, 02:10 PM
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When I did my basement a few years ago I used the blue jean insulation, Ultra Touch to insulate the ceiling/floor joists and it worked great.

With 2 teens, parties and X box going all the time we dont hear anything!

We also insulated our GEO thermal furnace in the work area, that made a huge impact on noise, it;s a loud furnace!
 
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Old 10-07-17, 02:52 PM
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Thank You Marq! Can you tell me how you installed it? Was it JUST the blue jean insulation in the walls and ceiling and everything else was totally normal?
 
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Old 10-07-17, 04:40 PM
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I'm guessing you are getting this permitted which means you've run across the egress windows required for basement bedrooms..... correct ?
 
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Old 10-08-17, 04:29 AM
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It was 6" batt insulation in the ceiling and 3" in the walls. nothing special for installing. The stuff is super dense and heavy!

https://www.doityourself.com/forum/a...1&d=1507462165
 
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