Recent content by Ted White

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    Sound Proofing

    If they kept it to a low-demsity installation, that would be really great. But fiberglass batt might be cheaper, and will actually work better in the low frequencies. per NRC lab data.
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    Sound Proofing

    Blown cellulose can be a real liability. If installed perfectly, and at a low density, it's great. To get that sort of perfection assured, you have to have open stud or joist cavities. Otherwise if you don't remove the drywall before blowing in, there's a great chance that the insulation will...
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    Sound Proofing

    Insulation is one of the more expensive items (per square foot) that you might consider, and would do the least, specifically for the low frequencies. Counterintuitive, perhaps, but there's lots of lab data fortunately.
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    Sound Proofing

    Short answer: Look at isolating the ceiling as well as the 4 walls Stay away from stairwell walls when doing this Double 5/8" drywall and damping compound. After that, your main potential leaks are doors, ceiling can lights, ventilation and outlets. All can be dealt with
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    Apartment Sound Proofing

    Drizzle that felt pad would help a bit (just a bit) with absorption.
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    Apartment Sound Proofing

    You can spend a lot on a specialty carpet pad which primarily introduces mass and that's great but they are not that much heavier than a good heavy pad from your local carpet supplier. Go heavy. After that it doesn't matter much.
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    Apartment Sound Proofing

    Heck of a post. Thanks for that. I agree with most and disagree with just a couple of the points. I really hope that none of this is perceived as an argument. That is absolutely not my intention. You bring up a number of fine points and these threads stay out here in cyberspace forever so I...
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    Apartment Sound Proofing

    Yes. I sent you a PM Simple R19 fiberglass. Kraft paper faced for ease of installation
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    Apartment Sound Proofing

    The bonding you're referring to would come from a stiffer mastic. The damping compounds are very flexible and not bonding. Besides, damping compounds are much more expensive than sealant or construction adhesive. Certainly true. Flanking vibration through the walls may account for 20%+ of the...
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    Apartment Sound Proofing

    Carpet pad will help, as will anything absorptive like drapes. The OC703 that JSTORM referenced is the classic material for surface treatment panels
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    Apartment Sound Proofing

    Carpet and pad is the best / first thing to do for impact noise like footfall and furniture dragging, chairs, etc. Carpet is not as popular an option as it has been historically. Great for building bass traps and in-room acoustical treatments, however. No appropriate for use in between ceiling...
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    Apartment Sound Proofing

    True enough. The wood is still resonating. Creak = resonance
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    Apartment Sound Proofing

    The 703 is not appropriate. It is too dense for optimal absorption. It's perfect ON a wall not IN a wall. Refer to the extensive and exhaustive data conducted by the Canadian National Research Council. The finest acoustics lab in North America. People often infer too much potential benefit...
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    Apartment Sound Proofing

    The drywall you refer to we've tested many times over the years. Works well and as advertised. It's just light and expensive relative to what you can build yourself. If buiding your own with 5/8" drywall, you would use the Green Glue, yes.
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    Apartment Sound Proofing

    Not good advice. It's the only part of the system that directly (effectively) addresses the vibration at it's source. This limits the amount of vibration that can travel through the subfloor and joists.