Soundproofing with Green Glue, Cellulose, & Double Sheetrock
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- Опубліковано 27 вер 2024
- I think we're going to see more and more emphasis on building Quiet Homes. We have some much noise in our lives, I think spending some time/effort on sound proofing special areas of our house will pay big dividends in the future. In this video you'll see a special noiseproofing compound called Green Glue used to abate the noise between bedrooms in a new home my company is building. It's a detailed install video utilizing cellulose, double layers of sheetrock, Green Glue, Acoustical Sealant, and Hilti Putty Pads.
Appreciate the comments and tips. This was indeed 5/8" rock. I only use 5/8" SR in my houses. Great tip on the adjustable boxes and laying the SR flat along with a Quick Loader. Best, Matt
UPDATE AUG 2013: I spoke with the client of this project recently and 2+ years later this soundproofing job is working great! Remember with any soundproofing job you need to follow manufacturer's specs precisely. The smallest mistake in a soundproofing job can negate all your efforts. I'm a fan of Green Glue, but it must be installed according to spec! When the job is done you'll have a very quiet room. Best, Matt
Both products are very good and if installed per specs will provide their stated STC's. I like QR if you are concerned about thickness or if you are bidding the work. I like GG because it's typically less expensive, but it is more dependent on a detailed installer doing the GG install per spec. It's also thicker with 2 layers of Sheetrock which is good in my opinion to add mass. But, that's more labor and is heavy if you are doing a DIY project. Hope this helps, Matt
Thanks for the comments. In all soundproofing jobs you must follow the manufacturer's label precisely to get the rated soundproofing effectiveness. The Green Glue labor is much higher than Quietrock but material costs are less. It's really a trade off between material & labor costs. Best, Matt
@AtticFoil Thanks! I looked on both companies websites and our exact assembly wasn't listed. I believe both would give an STC of roughly 50ish. That means that a radio at 70 db in one room would sound like 20 db in the adjacent room. VERY good! I like quietrock because there is less chance of installer error, but this Green Glue is nice in that it's a lower cost solution and is potentially easier to source. Both are excellent sound proofing methods. Matt Risinger
One of the Best Ideas of SoundProofing is "SoundProof Curtains" That Stops Outside Noise by 80% (25 Db) Tested. Check Here: livesoundproof.com/best-soundproof-curtains/
Matt - a couple of comments. First, adjustable electrical boxes should be used with double-rock installations to aid with finish electrical work. Second, I didn't hear this in your video, but 5/8" sheet rock should be used to maximize the performance with incremental increase in cost over 1/2". Third, installation goes significantly faster if the drywall is laying flat on the floor and the Green Glue "quick loader" is used. So all these increased labor costs are negligible in reality.
@AtticFoil Excellent question! In order of priority I would do (1) layer of Quietrock/Greenglue on the side of the wall with the least penetrations (outlets, fixtures, etc) and be sure to use acoustical putty on the penetrations it does have, then do fiberglass or cellulose insulation, then if space permits do staggered studs, then either acoustical clips which is like an isolation hat channel OR a second layer of Quietrock/GreenGlue. See my video titled "Where to use Quietrock". -Matt
Great stuff. I'm using Green Glue on a project now. I'm very please so far. It's amazing what that stuff can do. Thanks for another great video Matt!
+Cedar Ridge Remodeling Company Very welcome! Thanks, Matt
@TheObservationDeck Tough Question! Quietrock takes away many of the bungled install issues that can occur with Green Glue. If you are doing it yourself (or you really trust the crew) and cost is an issue I'd say Green Glue. If you want performance and are willing to pay a bit more then Quickrock is tough to beat. Matt Risinger
I would like to see what the difference between the two layers of sheet rock vs Mass Loaded Vinyl. Thanks!
One is more expensive then the other
Green glue is more efficient and cheaper.
Being creative aren't there other types of thick vinyl that could be applied that do the same job as the mass loaded vinyl.
Matt I was going to use SilentFX from Certainteed on my project, but the shipping was crazy expensive and we found out about it so late in the project that it would of delayed the drywall. It has the green glue already applied and is much cheaper than quietrock. We decided to go with channels and R-13.
may I know why you didnt put a resilient channel and a mass loaded vinyl before the drywall combo?
Wow, Matt and the Build Show have really come a long way, back then the camera work was very jittery and the audio quite low.
@ksurace When I was looking up the links for my blog post I realized the Quietrock folks were now making a Green Glue style product. I'll check it out for a future video. Thanks for the tip. MR
I have 2 quick questions! I'm going to be doing 1/2 in. osb plywood and then 5/8in Drywall on top of for my music studio in my basement.
1.) I'm just wondering if Green Glue is still effective when put between drywall and osb plywood?
2.) Also, do you need to seal the 2nd layer of wall with the acoustic sealant or just the 1st layer?
roxul is r15 and quiet rock they sell in lowes at seventy dollars.or double wall stagging seams roxul both.5/8s rock and glad to see the quiet putty
Really good explanation.
Matt, Great Video! You mentioned the COST was less than QuietRock, how would you compare the overall sound reduction of the two different systems?
How would you soundproof an already existing room? Would they have to tear the walls down?
drill 2" hole between stud and blow in loose fill insulation then patch holes ( hire a pro)
One of the Best Ideas of SoundProofing is "SoundProof Curtains" That Stops Outside Noise by 80% (25 Db) Tested. Check Here: livesoundproof.com/best-soundproof-curtains/
Great video Matt. I am soundproofing a bedroom . Does quietrock provide equal soundproofing compared to two 5/8 drywall glued?
Thanks
Legends say you're still waiting for your answer
@@lionintu legend has it he hasn't shit since that fateful night.
Great info. I hope you've invested in a tripod!
Have you had any experience with soundbreak sheetrock? Have you ever done a triple layer of sheetrock?
Triple....now there's an idea. At some point when the thickness gets to be too much you may as well put up a brickwall instead
Use GG sealant or compound for air holes in fixtures that are already installed in the walls?
great man.i need to do the same thing in my bedroom because i have noise neibhoors in house above me.
With the newspaper is going out of business left and right , that stuff is going get expensive. lol
excuse me, what is the actual difference between green glue itself and green glue sealant? I mean, is there a difference between what green tube and orange tube does?
Awesome video. Matt, do you also use the sealant once the second layer of Sheetrock is installed? Thanks
One of the Best Ideas of SoundProofing is "SoundProof Curtains" That Stops Outside Noise by 80% (25 Db) Tested. Check Here: livesoundproof.com/best-soundproof-curtains/
Hey Matt, I'm liking your videos. If I double sheetrock but use a silicon caulk instead of green glue, would that add semi-reasonable soundproofing without the $25/tube that Green Glue costs? (Would it be better than just double sheetrock alone?)
+Trevor Nielson I wouldn't waste the time/effort on the silicone caulk. See my cheap tricks video. Double SR is a good idea even if you can't afford the green glue as it'll add mass. In the end, you've only got one shot to do this soundproofing, if you screw it up it's costly to rip/replace. The Green Glue is pretty cheap in the long run for a very good product. Best, Matt
Hi Matt, absolutely great series of videos! Hey I have a one off question for you. Ever used underlay for floating floors in a 5/8'' drywall sandwich technique? What do you think? Would it work? I am looking at some soundproofing capable 2.5mm underlay with vapour barrier capabilities atm b/c green glue is very expensive at my location as is the direct shipping. Thanks, MS
How about mass weighted vinyl over old plaster walls and then 5/8 drywall over that?
How can green glue reduce sound if the sound doesn't even pass through it? You can use any other caulking adhesive that cost 3 times less that will glue 2 sheets of drywall together. Am I missing something here??
Yes you are. Caulking dries. Green glue stays flexible forever. That's how it dampens sound, converting the sound wave energy into heat energy, by staying viscous and decoupling the panels as a bonus.
so did you say QR is Better than GG?
I live near by the train tracks. I have double glazing windows and installed anther secondary glazing windows in the bedrooms.
Now I am looking into the walls. as it is still very noisy..
could you give me some of your thoughts?
Spray foam making retrofits for all other trades a pain in the a$$ for years.
GG behind DIY plank wall? I am planning to install strips of 1/4 plywood on existing sheetrock to look like shiplap. Would applying Green Glue to the back of the planks 8" x 72" x .25 decrease sound traveling from an adjoining room? There will be intentional nickel size gaps. Would the gaps compromise the whole job? Would the Luuan plywood be so thin it would be ineffective. Would the Green Glue be too thick causing my thin fake plank to pucker? I am going to do this project anyway just for looks, i was just hoping green glue would decease sound travel. Thanks,.
I have a question. Would composite asphalt shingles act as decouples if sandwiched between two pieces of 2x10s or sandwiched between two pieces of sheet rock?
Matt, Thanks for the video. Which insulation do you think would be better for soundproofing. Roxul "safe and sound" batts or dense pack cellulose. I haven't had any luck finding comparisons of the two in regards to sound proofing or STC ratings.
Roxul is a scam. According to the (Canadian) NRC report on the matter (IR 693), the best performance from batt type insulation is found with conventional fiberglass or Owens Corning "Quiet Zone" fiberglass... if available in your market. When you increase the density of the fill material you actually DECREASE your STC levels. I have been doing these kinds of installs using double layer/conventional acoustical sealant for years now. Green Glue is the new answer to the problem. It's the bulletproof solution...IMO. I am currently advocating for a loose fill cellulose for wall/ceiling fill material, using the BIBS system. This offers 100% coverage in stud bays with mechanical "issues". The loose fill is blown to R35 (in an 11 7/8" Tji joist depth) to provide proper separation from the underside of the subfloor sheathing. Batt insulation can't compete with this kind of continuous coverage. The REAL difference is in the board though. 5/8 Type "X" as the first layer and 1/2" CD/SR as the second. I can shoot wall plates with Yellow loads in the basements of the duplexes I'm currently doing and you can't hear a thing in the other side...Truth. The fill material in these is R12 23 fiberglass, on a staggered stud wall.Board as described above.
+Terrie Ron Schock this guy is another one of those my way is the best way guys
@@TRSchocked No one in their right mind would fill their walls with shredded paper for insulation, I don't care how "fire treated" or whatever it is... its just a mind bogglingly stupid idea to even invent such a product. Or as they say, "Only in America!"
Thinking about adding green glue and OSB on top of subfloor. Or green glue with hardie backer board on top of subfloor. Which one would have better sound proofing?
so if I have a closet I need to soundproof, Where do I start? Should I ... get normal sheetrock and then use green glue and screws to attach it? Will that be enough? then seal the seems?
I found a product called serenity from a company called 360 coatings, the stuff is awesome! I have used green glue, higher 5/8 gyp board and many other sound reduction products and the serenity coating is awesome for us. Have you ever tried it? And what are your thoughts about it??
So helpful thanks.
I have a case of Green Glue Sealant. Can sealant be used in lieu of the compound?
Performance would not be as good using the sealant. Not sure it would offer any benefits.
Hi and thankyou for your videos. After applying the sealant on the seams of the 2nd layer of drywall, do i have to wait a certain time before mudding the joints or applying house wrap over that 2nd layer of drywall. I'm doing a job that also includes an exterior wall which will have timber cladding (hence the house wrap part of the question).
One of the Best Ideas of SoundProofing is "SoundProof Curtains" That Stops Outside Noise by 80% (25 Db) Tested. Check Here: livesoundproof.com/best-soundproof-curtains/
Hilti is so expensive is it that much better than a can of spray foam around the outlet boxes? And as you are having the walls sprayed is it necessary in that application as far as cost effectiveness?
+Douglas Thompson Yes, it's MUCH better. No comparison. If you want to do it right, use a Putty Pad and the Hilti is the best model I've seen of those.
great videos but I haven't seen anything on basement sound proofing especially when it comes to ducting
Remove metal ducting and use flexible ducting.
You might check out QuietGlue Pro. Outperforms Green Glue and costs 30% less.
How would you soundproof an already existing wall which has two electrical outlets on the sheetrock. The rest of that wall has been built of fireproof materials to accommodate a woodstove which I never added.
There is also a thermostat on the wall.
Is that "Damplon" cellulose? How do you spell that please?
EngineeringFun "Damp Blown" cellulose. This is a method for installing the cellulose.
Thanks!
You could've gone even further and put mass loaded vinyl on the studs before the first layer of drywall.
will those hilti putty pads prevent sound of 65 db+ from coming through?
As part of a "system" approach to sound proofing: yes. On their own: No
now would roxul being insulated in the walls interfere with these putty pads?
@@davidratkay9281 no, because you have to cut an 'indent' into the mineral wool to allow the electrical outlets to fit inside.
He is doing it wrong. No need to put the zig-zag. Better to use a random pattern. 2 tubes per sheet (or 3 if you want better low frequency reduction)
yes you are right
He was using two tubes per sheet...
why isn't he using a batterie operated glue gun with all those tubes ..much easier and better appearance .but I love the videos ..I hang drywall every day in mansions on dune rd in the hamptons long island ny ..I have cool pics of a lot of the jobs ..
hi i live in ny and i have a problem with my noisy neighbor above me. Im renting in a studio apartment and it has finished ceiling. can i apply the green glue and double sheetrock? thanks
Yup you can
Not unless your landlord gave you written permission to modify the property and you're a professional sheetrock contractor, not a DIY hacker.... I'm guessing the answer is "No."
@AtticFoil I meant quiet side:)
ephoricmonk....You are completely skipping over the fact that using double 5/8" with Green Glue is SIGNIFICANTLY more mass than a single sheet of QuietRock. QuietRock also uses their own viscoelastic compound which, although comparable, doesn't test as well in the lab with limiting STC. And your quoted price for QuietRock is for the absolute cheapest available model. You would have to buy the QuietRock 535 at a minimum which approaches $80 per sheet.
Is the cellulose mold resistant
yes but resistant does not mean 100% mold proof , anything can mold if it remains wet long enough
Can I apply my second sheet rock with green glue on a existing painted drywall surface?
It's my understanding Green Glue is not really a glue and any material needs to be applied as usual. Screws ,nails etc.
If this (hanging of 2 x time the sheet rack) cost less than using the acoustic sound proof type sheet rack.? this seams too time consuming to me . However it might be more coast effective for contractors. .,,, but all good ty for the info.
Quiet rock here in California at my 2 local dealers is $74 per 5/8" 4x8' sheet. So yeah it's a lot more cost effective to just double hang.
Why not just use Roxul insulation? No cellulose or 2nd sheetrock layer required.
meedily Roxul alone won't give the reduction in sound that was required on this project.
Staggered stud common walls work better than double layer sheetrock.
Green Glue @ 4:30
The sound difference is obvious on cam.
1. 1/4 inch beed of 100% silicone down the studs for the first layer of drywall
2. Caulk the joints & outlets as shown in the video
3. 100% silicone sandwiched between the first & second sheet & dont overlap the joints as shown
4. 1/3 the cost and the same sound dampening effect
green glue $15 a tube, 100% Sicone $5 and it stays flexible just the same
What size drywall? 1/2 or 5/8
@@richards881 5/8. You want to add mass.
Since when does silicone "stay flexible?" Cured silicone is a hard rubber, not viscous liquid like green glue. Stop trying to save a buck when you don't understand how the materials work.
shouldnt take mike that long to put the acoustic sealant if he was standing up he would of been done already
Ugggh!! I don't like that messy cellulose stuff at all. PLUS... that stuff isn't a soundproof material...AND if it is made up of paper, that would mean it's not fireproof. Why not just use Roxul Safe N' Sound for the soundproofing? And it's fireproof.
ugggh! look it up cellulose is very fire proof
WRONG
it is fireproof and has the highest STC rating of all insulations
Because this video was sponsored by paper mill lobbyists? LOL Hilarious to see how many crackpots in the comment sections are desperately trying to convince the public having dry shredded paper in your walls is a great idea. Just ask yourself if you want to risk the lives of your family with whatever chemicals they treated that shredded paper with to make it "fire resistant." Guess it's a choice between burning alive, dying of cancer or.... I know... ROXUL!!! Lol
I'd use Roxul safe n sou nd instead.
@MattRisinger Would you do this on BOTH sides of the wall with this method if space/budget permits? Where do you reach the law of diminishing return? Also, If you were doing just ONE side, would you do the "noisy" or the "quite" side of the wall? Can you recommend a good "soundproof" type door or door treatment for for an in-home workspace. Thanks, Ed
holy moly, cameraman is having a seizure!!
Lol
If in Europe we do an electrical installation like this, they put the operator and builder in jail. 😱
@lastusertosignup Excellent question. I've not heard of that method. My only concern would be moisture sensitivity of that assembly and would it be able to withstand point loads (i.e. piano legs). I'm probably not qualified to comment however. MR
@nmjm31 Those areas are tougher to soundproof. Check the GreenGlue website they have some great information on how to deal with those types of sound issues. Matt
I've not heard of this product. Is this a paint product? Matt
Matt, why didn't you use isolation slips + metal resilient channels? Becasue, from what I can tell, the drywall is still mechanically coupled to the frame and isn't 'floating'.
Thanks for the breakdown. My concern with Greenglue regardless of the cost differential is that the installer has to take care to ensure the glue pattern is correct to get the intended results. If QuietRock is the same cost I would go with that. Matt
what do u use in heating ducts to prevent noise tranistion
I think the insulated flexible ducts do a better job of this than the old metal ducts.
I am trying to order the Acoustical Caulk in the orange & white tube. Are the two products shown in the video the same or different? The tubes shown in your video appear to be different. One green & black and the other one orange & white.
The companies I am ordering from say they are the same product even though their website list two different product descriptions and images that match your video. However, they only send the 'greenglue noise proofing sealant' then say it's the same. Help!
The installer said he was using a little over 2 tubes per sheet but covered less than a 1/4 sheet with the first tube so that information is not accurate. Also based on Green Glue's website it looks like this applicator was light on the amount of Green Glue used.
In my opinion labor will eat you alive with this application.
@waterdoor I can image the shipping was really pricy. That's one reason I like the Green Glue application, you're only shipping a case of caulking rather than hundreds of pounds of special sheetrock. Just using two sheets of cheap drywall and this special sandwich of Green Glue seems like a much easier way logistically to achieve sound proofing. -Matt
Ah yes, let's fill up the walls of our home with dry shredded paper! What could go wrong... 🤔🔥🔥🔥
Here is one person that has not did any research.
It's the best fireproofing insulation you can get.
@@seanlavery6477 Says the guy working for the paper mill... 😂
@@AA-zq1sx your crazy. Good luck
@@seanlavery6477 You stuffed your house walls with shredded kindling, but I'm the crazy one. LOL Keep the luck, you'll need it!
@@AA-zq1sx ua-cam.com/video/8NC79e0oztM/v-deo.html
You really are not smart.
IMG_0726.JPG I don’t know exactly how to get that picture to transfer to these comments. But a piece of advice if you’re doing it after construction you’re probably going have to rewire your plugs. There’s always something you didn’t think of.
Does this application cost effective ($) enough for lower DB performance?
Versus a resilient wall steel studs w/ sound isolation clips + foam core/insulation to walls + sealing all seams.
Is that USG standard drywall and not green board in a wet area?
Looks to be a nightmare for any repipe/rewire work if needed for reaching engineering lifespan change overs.
Cool idea.
We have lath and plaster, can we put the dry wall & green glue on top of the plaster, will this work? Or do we need another layer of dry wall on the plaster and then the green glue and another piece of dry wall? The tenants can't stand hearing their neighbor thru the walls. Does it have to be 5/8" dry wall, does thinner work? Thanks for the help.
At 1:00, whats with all the extra electrical cable? Loops between each wall cavity?
I meant to say higher end 5/8 gyp board...
Can you use green glue with cement board on floors? I am trying to insulate an existing floor in a second floor condo without pulling up the sub floor. Pulling the sub floor requires HOA approval. Work done above the sub-floor can be done "on my own." -- I'm looking at layers: #1. cleaned & smoothed subfloor with cracks between boards and around the edges where the floor meets the drywall sealed with noiseproofing sealant. #2 green glue on bottom side of cement board using the green glue instead of thinset. #3 EXTRA THICK carpet padding #4 carpet -- I'll replace the existing hollow core bedroom door with a solid core door adjusted for the added few mm of height added to the floor
Consider Homasote 440 or ScreedBoard 28
You can...in fact one of the ways they market this product is by doing exactly that. With the only exception that they use it between subfloor plywood and studs. Would use less tubes too. Probably more to reduce squeaky floors but if sound reduction is your only goal ...go for it
Thanks for the video Matt. I am finishing my basement and I'm trying to figure out the best way to soundproof the ceiling so I won't hear noise through the floors. First I'm going to insulate really well. Then I don't know what to do from there
Option one-RC channel or Sound clips and regular 5/8 inch sheet rock.
Option two-1/2 inch sheet rock, green glu, another sheet of 1/2 sheet rock.
Option three- sound clips and 5/8 quiet rock.
There are unlimited options. What should I do?
There is so much conflicting information out there and products that are expensive. There is no way of knowing what is worth the money and what is not. Please Help!
Emily Rubalcava I would pickup the latest issue of Journal of Light Construction (January). Great article on this issue. Of those three options I would pick one with RC Channel and double SR with Green Glue. Check out that article. Great advice from a pro. Best, Matt
I forgot to mention the plaster has paint on it. I have one wall that we put dry wall over the plaster and it didn't help the sound proofing, can I add another thinner layers of dry wall to that with the green glue on it, the dry wall was painted, would that work? I am confused about whether I need two layers of 5/8" over the plaster, need help asap. thanks.
2x5/8" or more is great
Are you driving the screws all the way on the 2nd layer or just to the next sheet? I presume not all the way. Then what is the screw off pattern for the top sheet? Standard?
Sheetrock won't hold a screw so you'll need to use longer screws on the second sheet to secure it to the studs. Standard screw pattern. Thanks, Matt
Matt Risinger I would have thought that the screws transmit sound so I was thinking the green glue had adhesive qualities.
+Curtiss Harris they do transmit sound but the green glue layer helps absorb a lot of it. The only way to completely eliminate vibration is with resilient channels
Resilient channels are what should be used for sound proofing, screws through both sheets transmit the sound waves and couple the panels.... like shooting yourself in the foot after all the rest of that expensive work.
any issues with plugging the screw holes in the outlet boxes with the sealant? seems like it would be a headache for the electrician
No, you'll only be using the putty pad on the back side of the box. You are covering the box/wires and sealing it to the sheetrock. The front face is untouched. The electrician will never know you've used a putty pad on this box from the front side.
Best, Matt
Matt Risinger
what i meant is when i saw an image of cauling material over the front of the electrical box, i just saw the screw holes being clogged up with caulking
+Bicycle Yoda acoustical sealant does not harden or set like caulk. Only electrician who's going to be bitching will be the one who has to go back in there to make a repair in the future.
If I lived next to this guy I would need soundproofing
Im glad I see hardworking Latinos aways doing the actual work on these construction 🔨 videos and I wonder why our leaders say that we are gang members and whatnot. This guy is probably just trying to earn a honest living.