How to Soundproof Ceilings Between Floors
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- čas přidán 16. 07. 2024
- With ROCKWOOL SAFE'n'SOUND® insulation, creating a quiet oasis in your own home has never been easier. Or, if you'd like to make a lot of racket, our home insulation product lets you savour noise without fear of disrupting your family, housemates, or neighbors.
Our soundproof insulation product is ideal for media and music studios, keeping a tranquil library or staying productive in your home office. There's no better time to install our soundproof insulation than when you're renovating your home, basement, or any other room in your house.
R SAFE'n'SOUND is perfect for ceiling insulation, interior wall insulation and floor insulation. It is effective in any room, but works particularly well when used for:
• Bedroom insulation
• Home Office insulation
• Library insulation
• Bathroom insulation
• Basement insulation
• Home Theatre insulation
• Music Studio insulation
• Furnace room insulation
• Laundry insulation
• Attic Insulation
So, what sets our product apart from the competition?
For starters, it has superior sound absorption qualities, especially with low frequency bass ranges.
Secondly, our product is is made of stone, meaning its non-combustible and fire resistant. If a fire were to occur, stone wool insulation may slows the spread of fire.
ROXUL's SAFE'n'SOUND® is also chemically inert and water repellant, preventing damage caused by moisture, such as mildew, mold, fungi or bacteria. By contrast, many traditional and alternative insulation materials unintentionally encourage and promote the growth of mildew. Mildew and other water damage can diminish the insulation performance while creating a lingering health hazard that may get worse over time.
Finally, ROXUL SAFE'n'SOUND is environmentally friendly. This acoustic insulation product is created with natural basalt rock and slag- a by-product from the steel refining industry. This substance would otherwise be sent straight to the landfill.
Our credentials have even been recognized on a national scale! We are the recipient of GreenGuard's most stringent certification for air quality. We're also a member of the Canada Green Building Council (CaGBC), and the energy-efficient insulation products we produce give us the privilege of being an ambassador for environmental responsibility.
For the industry-leading home insulation product, choose ROCKWOOL SAFE'n'SOUND today!
Ready to start your next DIY project? Learn more about Safe 'n' Sound www.roxul.com/products/roxul-s... - Jak na to + styl
After months of sleepless nights in our DC condo we used your product for our bedroom ceiling. We went with all possible improvements. The main issue were cracking subfloors that would wake us up in the middle of the night with our neighbor’s steps. He had a carpet and a mat underneath but it was his weight that made the poorly attached subfloor crack as crazy. In addition to using your product, we added glue in the subfloor / joist intersection, double drywall AND truly resilient channels mounted on infependent clips, not the channels screwed to the joist like in this video. Sleeping like babies ever since.
Thank you for this comment!!
We are currently losing our minds with the upstairs neighbors. My apartment vibrates and shakes whenever they stomp around. BOOM BOOM BOOM BOOM. I really hope this can at least help somewhat. We are desperate.
I’m in the same boat. We purchased our condo not long ago, and we only have one gripe. Our upstairs neighbors Is let’s just say a bit rotund, and we will wake up in the middle of the night to what sounds like he’s going to crash through our roof. I wonder what this costs? Say for a 9x9?
I need you to make a video of this or more detail of how u do it! I live downstairs and the squeaks are the worst for me and my husband I’m due in 3 months and I want some type of rest before I loose it all :(
Spinel,
How much did it cost if yoy dont mind me asking? My abive neighbor is on the heavy side and i can here her steps, bed squeaking, and dog bark. I been considering getting this installed.
Thank you for this video! Short and sweet. I was running short on time before my ceiling soundproofing contractor stopped by to provide a quote. I watched this video, took notes, and sounded a bit more like I knew what I was talking about. Very straightforward video and (thankfully!) under 5 minutes long.
@Hannah - Not what I need, but some might find this information useful.
I used this same method when I finished my basement a few months ago and it’s absolutely remarkable..
It’s so nice not hearing my wife have sex upstairs while I’m reading or browsing the Internet.
Marak Lia lol🤣
hahahahahah
lol
Marak Lia
And I was worried the headboard was to loud. Roxul is great stuff
You didn’t choose the swinging life. The swinging life chose you.
we used your product in the ceiling and under the house during renovations, and we are very impressed. Rarely run the AC, and no longer hear the squirrels running on the roof. I refuse to go back to fiberglass insulation. Even our handyman is switching to Roxul. My only complaint is that I have to special order it from Lowes or Home Depot, and they don't have access to all your products. Wish they would carry it in store. Even some of the employees are not familiar with what Roxul is, said they never used it.
This is exactly what I needed this is rad, thank you! My rooms in my basement since my sister still lives in my house, she’s 20 and I’m 16. We out grew our shared room years ago and I never minded the basement except for one thing, my parents smoke next to my door and they both have smokers cough, and the old house’s floor boards are so loud sometimes I can’t think! This is PERFECT
@Neil Floris - Thank you for the recommendation on the ISOMax clips!!! I found a local rep and just ordered to use on the ceiling of my office. The rep also suggested overlapping 2 layers of 5/8" sheetrock. Just an FYI for anyone that's serious about this.
You could use O rings or rubber washers between the screws and the joists /resilient channels.
If the goal is to reduce sound wave transmission, you have to insulate them from each others with a non resonating material.
Very concise! Thank you. Great info and presentation.
This is exactly what I have been looking for to defeat a blaring tv and yelling from the floor above me! I will be buying this over the next week! Thank you!
Glad to hear Jeremy! Cheers, ROXUL
Our pleasure!
You did a great job on this Video. Thank you for the information.
Hello David,
To install the resilient channel to the studs, we recommend using 5/8” coarse-thread screws. To install the drywall to the resilient channel, consider 2 things:
1) Install screws such that they are placed between the studs and not into them. If the screws that penetrate the drywall are driven into the studs themselves, the value of the resilient channel is lost.
2) Use fine-thread drywall screws designed for light gauge steel; ¾” screws will work nicely.
Thank you - ROXUL
That's good marketing!
Thank you. I'm looking to soundproof the basement in my ceiling this winter.
Surge Álvez do you mean cling in your basement?
Thanks for shairing. well done.
I love this product as well as the other Rockwool (formerly Roxul) products.
This is precisely what I would need, to sound-proof my ceiling so to enjoy my Home Theater in all relax. I've already put some insulating panels which helped but apparently sound still gets through as the person living above me complains about the noise from time to time. How is this material rated? How many dBs per inch of thickness will it absorb? Thanks :)
Thank you. This was a really good video. I am moving my upstairs laundry room into an open space above my living room/entry. I need the drywall to line up/be level with the existing downstairs ceiling. It looks like those vibration channels that you put up on the joists add a bit of thickness which I will need to account for. How thick are those?
Thank you.
Thank you. Great tips.
Great video. I was thinking of doing this for my am recording studio. Can you please address how you would do the electrical wiring for lights etc with resilient channels and drywalls? As in how do you install a light fixture without sound traveling through? Do you just make holes in the actual drywall?
A well made and informative video. Thanks!
Hello Christine,
ROXUL SAFE’n’SOUND can be installed above a suspended ceiling. This type of assembly has not been tested for sound attenuation, however you are likely to significantly improve the acoustical performance of your ceiling system with the inclusion of SAFE’n’SOUND batts that are installed tightly abutting each other.
Thank you- ROXUL
you don't see a lot of resilient channel used, people don't know about it. I also like how you kept the insulation off the subfloor to create a space, but you didn't make a point of saying thats how you should do it. the spaces between the materials is really what captures the most of the sound.
Matthew Van Helden Matthew Van Helden I had no idea about the space in between
I installed R-13 Foam against neighboring wall then because I still heard them, I put in another R-13 of the fiberglass pink stuff for R-26 because I didn’t know about Roxul at the time and it was less sound but I can hear their kid 🧒🏻 running around, wish I had known about the SPACE in between Roxul and the Wood to TRAP the sound! Grrrrrr!
Matthew Van Helden subfloor meaning the ceiling? So there should be space from the insulation and ceiling as well as the insulation and drywall? Am I understanding that correctly? Thanks
Chud Yee SO, your ceiling, their floor. Now that we have that clear. Lets talk in layers. The bottom of their floor is one layer. Leave an air space layer, under their floor, then add the Roxsul layer, when you add the metal channel, you will be creating a space layer between the Roxsul and the channel. Then you add the drywall. You end up having a space layer before the insulation, then after the insulation, then comes the drywall. So you have 2chances for the sound to get trapped ir disspate by the time it reaches the drywall, which is YOUR ceiling.
Sorry to bother you. I am studying to do it in my ceiling. Between the wood joist and the metal channel, should have a gap air or should be screwed? Bcz in the video he says that the metal channel should work independlty but looks all attached. Thanks
Great video, thank you for posting this. How much ceiling height is sacrificed by the resilient channel? And do you recommend sound isolation clips also?
This guy used to be a Much Music VJ! Cool!
You crack me up! Roxul even if it were 12 feet thick wouldn't soundproof more than about 6 Db, the only way to actually sound proof is to use limp high mass materials like lead which we don't use any more so lots of drywall and stagger the sheets each layer and glue all but the first one on. All that will do is help out with the sound bouncing around between the two layers keeping reverb at bay but if I were playing bass at a moderate 75 Db it would travel right through that wool like it wasn't there. The resilient channels are a great item as long as you don't screw through the ceiling drywall into the joists. I have had to correct rooms where someone used Roxul for "soundproofing" at least 4 times and the disappointment on the persons face was pretty evident when they tested it and the baby upstairs woke up within a few seconds. If you plan to sound proof, look up the STC of these materials first and save yourself a lot of grief. But I bet he can get you a great deal on the Brooklyn Bridge.
Now if you want real advice from someone who builds A list studios for a living and does not want to sell you anything, go here. It is all based on real science and no sales. He even knows more than me! I studied on my own for about 5 years, this guy went to school and has built some very very nice studios that have frequency and reverb time charts and his website has a room mode analyzer too prevent standing waves so you don't have to dived twice the length into sound in feet per seconds and then make a chart with every multiple of your answer up to 400Hz etc for free. You will love this man for the time and money he will save you. And for the free education he spreads around. The guy here is selling Roxul so it's magic stuff that defies physics apparently.
czcams.com/channels/mAjEZ1xMg-0KA6AxYJm-Pg.html
Drampa Dreg: you're the post i was looking for after watching this video - thanks for setting him straight and thanks for the link!
this looks great. wish i could do it to the apartment im living in to stop the upstairs neighbors noise. and how stop the loud popping/cracking sounds of old apt creaking when they walk? it is hardwood floors. 50 yr old bldg. california.
Thank you for the great information. I will install radiant water hoses between the joists and to make a good seal when i install the drywall ceiling. It seems to me that since you are not going directly to the floor joists, it may be necessary to seal ends to so the heat does not escape? does that make sense? is that true?
Awesome! Awesome! Awesome! So helpful!
Great video, what about using Ceiling tiles, any R Value in it or sound proofing, I need to sound proof my voice over room and I have a pallet Of Ceiling tiles that are slightly damaged, I wonder if I could use that for insulation or Sound proofing
This video is great - thank you. Would you ever put other materials in as well to increase soundproofing? Such as another layer of Roxul or QuietRock? I live in the condo from hell that has nothing between the shared walls and ceilings/floors and we are researching options. I want to know what is the Cadillac option for soundproofing.
What you have installed is for airborne sound only. Impact isolation is done through the use of a 5 - 6mm resilient layer on the floor above. If you cant treat the floor above you need a independent ceiling at least 150mm void full filled with dense mineral fibre insulation and 2 layers of 15mm sound board. We have tested enough of these floors to know. However this still does not prevent structural transmission.
This is a good basic solution. I would also put a roll of MLV under the drywall
Thanks amigo.
I have nothing but great things to say about Roxul and I am glad that it is being produced in America. I used to have to special order this stuff from Canada when we first got into business.
Here is a tip, Do not install the resilient channel right at the border of your walls (in the video it is done this way and it is not ideal and could short out the system) There needs to be a space there so you do not couple your wall/ceiling assembly. That way any transmission by the ceiling will not transfer as much to the walls (which could amplify the problem)
Thanks for that tip. I'm going to be working on the channel on clips and I'm assuming the same logic should apply
Bluelemonzz Yes, Good luck on your project. The clips perform even better than just channel itself if done right. Make sure you use the Roxul as it does absorb the lower frequencies a bit better
I love your job!
Wish I could tell you; I've only recently finished all the framing for the jam room- all inner wall frames are decoupled, double walled for the inside walls. Doing all the work myself, so it's taking me longer than I'd like. Supposed to be putting in all the electrical next week on days off.
Did you drywall right to the floor joists? This is why I'm decoupling all inner layers, to try prevent impact and air impact bursts (drums) from transferring through.
Thanks!
Can anyone share their experience before and after doing this? How much did sound attenuate/reduce for you, and did you do anything differently?
Im doing the same thing in our basement with the same stuff Safe and sound. I have a drop ceiling already installed but, am i gonna need the resilient bar with a drop ceiling?
Can you do a video on the metal brackets and drywall? Pls and thx.
Hello SFP,
SAFE’n’SOUND is optimized for sound attenuation; the thickness of the batts are carefully designed. The 3” batt leaves a ½” space in the wall when built with 2x4s; this space helps to minimize sound transfer through the wall.
If you have the space, you may use an additional layer of SAFE’n’SOUND. Elements such as resilient channel (or acoustic clips), thicker and even doubled up layers of drywall are highly beneficial for overall sound attenuation.
Best of luck- ROXUL
I'm planning to have a drum room. My house is just 1 level so no impact noise for me. Can I just skip on the resilient channels? Just Rockwool + Joist and then the drywall under it?
I wish I had encountered your video before I finished my basement & sound proofed it. Are there any alternatives without pulling the drywall out now that its all done?
Illustration is very informative and practical
HI Roxul,
We're finishing our basement and soundproofing the ceiling. We've already installed two layers of Safe n' Sound, and resilient channels. Some information says you should leave a gap between the ceiling drywall and the walls or risk "short circuiting" the soundproofing. This gap should be filled in with acoustic caulking, but how do you finish off the caulking? Do you just use regular drywall mud? Thanks,
I would buy a kit from froth pak or touch n'seal closed cell foam - I'm betting it is the absolute best sound reduction out there for this type of application. Or the blow in cellulose. But I haven't used this product here so maybe its good too.
excellent working of insulation installation
Fabulous video
In units of Decibels, what is the sound negation effect difference between the Roxul Safe and Sound Sound Deadening and Roxul Comfort Insulation?
for floor joist, put two layers of rock wool: one pinned against the sub floor, and the second just above the ceiling drywall.
What about if I have a drop ceiling? Would this still have a similar effect?
Great video but you forgot to mention one important point. Noise transmission through the ductwork. You can insulate till the cows come home but if you don't address this issue you may be disappointed with your effort. Just think of all those old movies where the sea captain pulls the plug out of a pipe and communicates through it to the engine room...same principal. You can cure this issue by acoustically lining the ductwork. This is common practice in high end sound studios.
Seal holes with acoustic sealant. Block air bound noise with Roxul insulation. Resilient channel to block out vibration-noise.
I see the the safe and sound is installed at the "bottom" of the joist. Question one.. is there a benefit to installing it this way versus pushing it up right to the subfloor above. question 2 .. if i double up 2 batts to fill entire cavity with it make a big difference for sound travel? or is one batt enough?
Very informative video. Pls suppose the contractor has seemingly completed a ceiling soundproofing for a basement, how can one test that the job was properly insulated. E.g. that the Cotton Batts were adequately installed all over the ceiling's surface area?
acoustic seal wire holes on joist too?
i saw that you guys using mastic seals on ducts.
perfect video!
Thank you!
Camanas park
Generally a good video but a little light on the details. How do you put the Safe-N-Sound around the cross-bracing? Cut it to fit? Compress? Around Pot lights? Other impediments? If you want to use the vibration dampening channels what would you do about pot light fixtures that are already set up for 1/2 inch drywall? Does Safe-N-Sound have insulation value? I imagine it does. What is the R value? I know it's not made for insulation specifically but since it's made out of the same material as the insulation it must insulate to some degree. Do the pot lights have to be IC rated when using Safe-N-Sound? BTW, I love your product. I've re-insulated my whole home with your Rockwool goodness. Wouldn't use anything else.
What product are you using for the resilient channel? Any recommendations?
Roxul is a wonderful product, I took a small piece of it home from Lowes and I was able to melt a penny in the palm of my hand using only the little piece of Roxul as protection. I've put a torch to it and it doesn't burn, it will scorch and dissipate but trying the same thing with closed cell foam or fiber glass will get you hurt. So for my money, knowing that I've not only got great sound dampening but that I've also protected each and every room in my house with the equivalent of a fire resistant wall is great peace of mind. Just think the fumes from burning Spray foam in a house fire will kill you before the flames ever get to you, so no thanks and fiber glass has been shown to be almost as bad for your health as asbestos the only reason why it's not illegal is because it's cheap and grandfathered in and if installed wrong it loses most all effectiveness.
Great products from rockwool , looking for some greater R-value batts for 2x6 cathedral ceilings. Maybe R40 dense packed batts :-)
Thank you for your videos. Are we installing the resilient channels every 16" apart??
NinaNinaBonita yes
wish this product was available in Sydney, Australia
That's cool with me, what has been seen can not be unseen.
Good example!
I want access to electric and plumbing. Would a drop ceiling work the same way as resilient channel and drywall
Are those ceiling floor joists about 6" in depth? I noticed that you only put one layer of roxul in between them, so there is a good gap of air above which is recommended as per the MAM ratio. My basement ceiling is like that as well. I'm intending to create a music jam room in my basement. What I was thinking of doing was trying to sqeeze in two layers of roxul, but having a couple inches of airspace with using green glue isolation clips and hat channel followed by quietrock drywall.
Like this. Might solve the headaches of tenants calling me at work to report noise all the time.
Would doubling the foam in between the joist add more sound reduction?
Do you think I maybe going overkill on the two layers of roxul? Or should I be installing it like you have done here?
How do you address adding channels around the pot lights? the pot lights are set in as if you were attaching drywall directly to the joists. However, your adding an extra 1/2" inch with the metal channels. At the same position you are not going to get a good seal between the perimeter of the light and the drywall.
quick question re: the channel.... the floor above the basement I will be using the safe and sound is carpeted. Do I need the channel at that point?
Hello DimebagHK,
ROXUL SAFE’n’SOUND is one component in a system of materials that work together in attenuating sound transmission. Although you may not be concerned about structure-borne sound originating from the floor above, a highly effective solution would be to install two layers of SAFE’n’SOUND, resilient channel (or acoustical clips) and 5/8” drywall.
We hope this helps- ROXUL
How much of a difference is there in sound if I went with 1/2inch drywall instead?
Hey, I'm planning on soundproofing my room and the ceiling looks just like that. I'd like to prevent sounds from my room from going through the ceiling, so would I JUST need the Roxul Safe'n'Sound installed, or is the drywall still necessary? I don't really care about the impact noise coming through.
Too late to see your answer.
To install the resilient channel to the studs, can I use #8 x 1-1/4 Self Tapping A Sheet Metal Screw? I bought it already.
nstall the drywall to the resilient channel, I bought 1" fine tread drywall screw already, it should be fine if I install them between studs t avoid penetrate. Btw, when installing drywall t resilient channel, will there be any issue if the screw ever touch Safe&Sound?
Thanks!
David
What acoustic sealant do you use?
what about acoustic sealant and vapour barriers? If i put acoustic sealant on every studs and then use the vapour barrier to cover it is this overkill or better?
Question: he left a big gap for air abow the rockwhool, wouldnt that be better with a second layer of insulation for more sound reduction?
Even the best acoustic floor +wall +duct (outside wrapping) insulation won't help to stop the noise emission to upper floors via air transmission of the duct system. I still find no effective (& thin) solution for INSIDE acoustic wrapping of ducts. ANY IDEA?
Which size of drywall screw should I use for the channel to stud and drywall to channel?
Unless by your question you were implying that you would double the entire process and have in total, the foam, the drywall, more foam and an additional layer of yet more drywall underneath that, then absolutely yes you would cut down on sound a lot but in terms of a project that would be a serious undertaking to hold everything in place.
How effective is something like this against impact noise? How much of this do you think it would block? 70%?
If I have 2 x 10 joints, can I put fiberglass insulation and then the safe and sound to get some r value in the ceiling?
I was wondering how that worked? I put one layer of roxul tight against the floor, worked a little not great. But when I put another layer with a gap between it caused huge vibrations from the drums, so I took out the bottom layer. Now I am thinking of stapling audiomute rolls to the ceiling and all the walls, but its about $1000. What do you think? my son is a pro drummer
what type of resiliant channel are you using? i have heard of auralex but those seem really expensive. is there a particular inexpensive resiliant channel you recommend?
I notice some install 2x4 over the joist - what is the perpouse of that method - would be okay if I skip that part - and do your method of installation
and which insullation do u recomend for viboration?
Does it matter if you push the insulation right against the subfloor vs how you show it being level with bottom of joist? Any difference?
How Can I find people they do this job. Thank you
How do you replace the wood in the ceiling that look like a cross between beams and what the name of them?THANKS!!!
This isn't bad, but it isn't the best approach.
I do like Roxul Safe & Sound. Though many home theater/sound mitigation sites will say that you will get essentially the same affect with plain fiberglass, I've experienced the audible difference of having bats, blow-in fiberglass and two layers of Roxul side by side by side in a 2x6 wall facing a major freeway. Roxul did have an noticeable impact as I couldn't hear anything through the Roxul but I could still hear some traffic noise through the two fiberglass installation types. (justifying the price difference vs performance is subjective decision).
However, to the overall approach shown here, acoustic caulk sealing and insulation is critical, and resilient channel is better than going straight to studs, but resilient channel and a layer of drywall does not provide nearly the same sound mitigation as using sound isolation clips with hat channel and at least two layers of 5/8th with a dampening product (like Green Glue or Quiet Glue Pro).
Not addressing all the plain sheetmetal air ducts and possibly the side walls (look up 'sound flanking') could also minimize the impact of the effort.
Csab the clips are expensive but remember you only get one shot at soundproofing. If you put up the ceiling and you're not happy with the result it's not an easy fix
you get what you pay for. Go with clips and double drywall for maximum sound attenuation. You only do it once!
Soundproofing
Curtis B how about using some QuietRock drywall or Soundbreak® XP® drywall? Both are comparable to 8 layers of Sheetrock
How do you mount a TV to the wall? Would that compromise the system or do you only do this to the ceiling?
Does safe n sound have a depth less than 3"? My walls are 2" deep and was told 3" will bump my wall out over time
Any Chance you could describe the STC for the solution you describe?
good one.
So does this help the squeaking upstairs as well?
Hi guys! just a little cue here :
I just call the Roxul technical support fort a question this week and the Roxul "Safe n Sound" as a "R" value of 3.9 each inch. So for a batt of 3" is R 11.7 !
It might been not rated on their web site, but there is a R value in this batt!
Enjoy!
So you're saying that "Safe n Sound" has almost the exact same R-value as regular Roxul insulating batts? Color me skeptical. Maybe they're almost the exact same product. Safe n' Sound is more expensive though.
Can I use Roxul wall insulation to wrap around the flue vent of the hot water tank? Would it be considered fire hazard?
Hi I have a question I'm insulating my basement ceiling with comfort batt is it ok to have a air gap between the insulation and the floor I have about a 6 inch gap thanks