Soundproof: What Works And What Doesn’t!

Soundproof: What Works And What Doesn’t!

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100 thoughts on “Soundproof: What Works And What Doesn’t!”

  1. If you are thinking about soundproofing, you might want to watch this basement renovation video we did to get ideas on how to finish your project. Cheers!

  2. Soundproof room is a necessity in Indonesia. Imagine someone chanting with a loudspeaker in front of your house every 3-5 am and 9-11pm, my house is far away from a mosque and i couldn't imagine how annoying it is to live right next to one.

  3. Great video! I'm in the initial stages of designing or thinking of what to do to help with sound transmission in a rental trailer. That limits what I can do, but as soon as I get to the point to buy another house, I'll probably use some or most of this as a guideline for my mixing/studio setup. If you have any low budget rental advice for things that are not permanent, that would be awesome 🙂

  4. I like what you show in this video it makes perfect sense. Now for the obvious question how do you stop the sound from coming through the door?

  5. an apartment bldg neibor is loud i styrofoan panels cheep and wont destroy the comon wall. duc tape and push and press?

  6. hey love your vids!! quick question about my situation i want to soundproof just 1 side of the room behind there is a kitchen but the problem is the wall in question has a door will that impact the whole soundproofing concept or is there a way around this?

  7. I am building a conference room inside of a loud building i need to know what is best to do so , i've heard of caf boards but can not find them at lowes or home depot , what is youre best suguestion

  8. I've read that there are two types of sound pollution – airborne and impact – and that you have to address each in different ways. We live in a basement apartment in a home that is 250 years old that has large hand hewn joists under our drywall. The apartment above us has very old hard wood floors. The noise of folks above us walking around – impact – is very loud so we want to stop this. It sounds like they are stamping their feet when they walk. I believe that there is existing spray foam insulation under our current ceiling drywall and I was wondering if we can just add a second sheet of heavy 5/8 inch drywall with green glue to address this impact noise? Everyone seems to be saying that for impact you need to use resilient channels as the sound is transmitting through the wood and not the air, so more insulation in any form won't help much. Any advice?

  9. Towels. Buy and save bath towels. Van builders test layers of towels vs 10 others.
    I did the walls of a small bathroom remodel, 5 layers. Eerily quiet.

  10. Brilliant way: 17:42 Separate really loud space from quiet space. But does this work for a live music room where there are very loud drums and bass etc?

  11. I love your videos and how you share the tricks of the trade, like the stitching at the end of the drywall, never knew about that. One question regarding soundproofing and using radiant floor heating; what would be the best way to cool a room and still keep it soundproof?

  12. Very thick rockwool or some other insulation, 2 layers of drywall on each side, remember to do the same on the floor aswell.
    The best is to trap the sound, make a "hollow construction in the middle" of the drywall.

  13. I decoupled the walls and used johns manville thermal and sound control insulation, works way better than I expected. Btw are you related to the bagel boss guy?

  14. What about using some of the rigid foam sheets between the sheatrock? What kind of dampening would that provide?

  15. Thanks for making this video! I think you've made the point about removing heating ducts clear enough… But what do you do about ventilation?

  16. HI, I have a bed where my head is by the wall, and I hear outside people go by with mufflers, Iwas gong to add quiet rock 5/8 to original dry wall, but what should I put between the dry walls? thanks

  17. So my husband is disabled with brain injury. We recently moved into a new build home and I am thinking of trying to sound proof (even little bit) the master bedroom for when he is resting. Our master bedroom wall shares the dinning room wall and door is right next to the kitchen. I have bought a solid core door that still needs to be installed and was wondering do I need to sound proof all walls or can I just do the 2 common walls between to knock down noise coming from kitchen, dinning room conversations, and tv near by?

  18. have a hypothetical question for ya. you say drywall works better at insulating an open space than insulation does..what about using drywall in between the joists layered with the green caulking (forgot the name already) in layers with a final layer of drywall on the outside for the look appeal? would that be a better insulator?

  19. I've used the same process although I used dissimilar thickness of drywall (5/8" + green glue + 1/2"). I think the idea is that the different drywalls would have different resonance frequencies. Thanks for the video.

  20. At 3:09 you referenced removing metal duct work if you want sound isolation, but there's another option where you can use the insulated flex ducting. Its much quieter. Even installing a 4 foot piece of flex in a metal ducting system has isolated room to room noise on some of the jobs I have been on.

  21. This is a really good video. Just wondering, if I live in a downstairs apartment and can't really ask the unit upstairs to put carpet or under pad underneath their timber floor, will the better method still works on my ceiling (insulation + 2 layers of dry wall + green glue)? Is it unrealistic to hope for STC 50 in my situation? Do you have a video to decouple the ceiling as well? Do the isolation clips really work? Thank you.

  22. Please do NOT build this wall until you Google "Triple Leaf Effect." 18:00 His wall actually loses about 10 STC points for putting a sheet of drywall in the middle. A STC 65 wall is (Double 5/8th Drywall & Damping compound) + (Stud & Insulation) + Air Gap + (Stud & Insulation) + (Double 5/8th Drywall & Damping compound). It's counter-intuitive, but having extra air spaces builds up pressure in the wall and transmits more sound through.

  23. This is a fantastic presentation in terms of raw information and more importantly the expression and demonstration of thoughts and actions. The information and techniques both described and demonstrated here are immensely useful. In under 30 minutes, you've taught me probably all I'll ever need to understand about sound transmission through walls, and you've given me a refresher on some aspects of putting-up drywalling. Thank you so much for this video!

  24. What are your thoughts on wall coverings such as Quite Wall?  I have two guest  bedrooms joined by a bathroom.  The vanity and the toilet are on the shared wall and all noise is heard in the second guest bedroom.  The bed headboard in the second guest bedroom is against the shared wall.  For us, the two rooms are used for guests as our master bedroom is on the other side of the house.  Should I attempt a type of wall covering as used in theater rooms or would I be better hanging the two 5/8" inch Type X Fire Rated Dry Wall with Green Glue directly over the existing dry wall?

  25. Why didn't u fill that void in the stud wall? I've done soundproofing. I would have filled that void with polyurethane foam, plus 2 overlapping 9mm sound board guaranteed.

  26. What is the fiberglass insulation you used? I have no clue about insulation. Just tell me what you got so I can go get some. Thanks. Oh, and also, does it help to make it "more" soundproof if you put in the batts of insulation two deep? Or does that not even help?

  27. This sounds great. I would be concerned about rodents, getting between all those spaces you are speaking of. There is a possibly, isn’t there.

  28. Roxul safe and sound is by far the best sound deadening insulation.
    I ripped out the fiberglass after a guy like this convinced me to go with it.
    It was horrible. The roxul is waaay better and it provides fire protection.
    Semi floating ceiling with new beams resting on rubber isolators and dead soft aluminum brackets with neoprene washered screws with rubber washers under the brackets.
    Only 1.5 inches lost from ceiling height.
    Lots of other small things as well.that add up.

  29. Any sound-deadening project that doesn’t involve acoustic sealant, especially in a DIY context, is just absurd in my opinion. And two layers of 5/8’´ fire-code gypsum board will give you a one-hour resistance in a partition; not in a ceiling (!!!). The title of this thing should rather be : ´´Acoustics: a [very] superficial approach’´.

  30. There is no such thing as Soundproof!!! I build magazine cover dedicated Home Cinemas and Professional recording studios. If any contractor is foolish enough to use the term Soundproof in any discussion, contract, and or meeting you deserve to be sued into bankruptcy. Noise or sound control. Second video you produced that popped into my view using impossible terminology.

  31. There are a lot of holes in this story. Resilient channels work because only one leg is attached to the structure, allowing that leg to flex and give, absorbing some of the energy passing through it. Gypsum board of 5/8" thickness is not fire rated unless it is UL listed as fire rated. Ductwork can reduce sound transmission by installing baffles that absorb the energy. Also the ducts can be enclosed with the gypsum board. Placing screws through a layer of green glue defeats the purpose. The screws will transmit sound through the structure, and the STC rating will not be the same as without screws. The green glue is not designed to support vertical loads and unless the screws are placed very close together, will separate and lose its effectiveness..

    The Gypsum Association produces a manual that defines many, many sound control systems, complete with STC ratings, and Fire Ratings (if needed). It can be purchased online or viewed in your local library.

  32. i want to soundproof one of my upstairs bedrooms i intend to turn into a gaming room my house it semi detached what is the best way would you say for that situation ?

  33. Not really helpful. In Germany the houses are built of stone and concrete. When things go really bad, a wooden ceiling is built, which should be demolished and concreted. With decoupling plates and impact sound insulation that goes already however one wants nevertheless a better sound insulation.

  34. i want to sound proof the closet we keep our washer and dryer in, the closet has fairly thin folding doors. what would be a good option without replacing the doors?

  35. You really hate air ducts. There are many ways to soundproof air vents. You think studios are all air tight? Sound Baffles. Special ducts with sound absorbing materials. IAC ACOUSTICS QUIET DUCT® SILENCERS. You seem like you need more oxygen. And Green Glue Whisper Clips help. Not a few points. A lot.

  36. Great info, Jeff! Back in the late 70's when I framed apartment buildings, we built adjoining walls using 2×6 top and bottom plates with 2×4 studs staggered from one edge of the plate to the opposite edge of the plate, 16" on center. Each side of the wall frame received a standard 4" bat of paper faced fiberglass insulation in the stud bay and was covered with one sheet of 5/8" or possibly 3/4" drywall. This wall construction type was known as a 'party wall' in the trade. It seems to work pretty well and the material cost is fairly reasonable. I didn't think about it too much at the time, but after watching your video, I understand that we were building a mass – insulation – air gap – insulation – mass sound barrier. Who knew?

  37. Ive done sound deadening in car audio for ages. Idea is increase the density as much as possible. Higher the density the less vibration the less sound transmits. Difference between a BMW and a Honda when you close the door is the weight of the door. Never applied that logic to home construction though.

  38. The alternative option: use better building materials for your house in the first place. I'm sitting here in our typical German residential home with 30 cm (12') steel reinforced cast concrete ceilings and hollow clay brick walls (36.5 cm (14') outer and 20 cm (8') inner). The ceilings and outer walls are at least 60 STC and the inner walls something between 50 and 60 without any further sound proofing – most of the sound you can hear comes through the windows and doors.
    (And actually I was looking for studio soundproofing, but this was inspiring too)

  39. What are your thoughts on using acoustic foam egg crate panels in this type of build? Yes it costs more but there is a reason recording studios use them.

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