I am sorry but I think this is total BS, there is no way that lines of Green Glue sandwiched between two layers of drywall are going to be better than 4 layers of drywall. How thick was the drywall, 1/8" and the green glues was 2" thick?
I just received an email from Rod Gervais saying he no longer recommends Green Glue. He states the following: "I'm going to let you know "just for the record" that I no longer recommend the use of that product........ My reason for this is due to the fact that I was contacted by the inventor and informed that after he sold the company the new owners modified the chemical composition of the product. Seeing as it is chemically, no longer the product I tested, I have no way of knowing if it has exactly the same properties as the original. As such i no longer recommend its use." - Rod Gervais If Rod doesn't recommend Green Glue then I also agree with him and say that we cannot "trust" something that has been altered and not lab tested. Best to stick to the physics and tried and true best practices.
@@eliashdez I couldn't confirm that any of this is true, so for now I am sticking with GG if you can afford it. I do think it helps and until anyone can prove the data wrong it is better than not having anything.
Great video, very informative and well researched. Definitly get right into content as I think you'd have a lot more engagement. You have the content and have to remember videos like this aren't a conversation where you need foreplay. Just get into it.
I used both green glue and mlv. I used mlv different than most. I put it directly on studs and Rockwool safe n sound ( room within a room ) Sealed it with tape pvc tape. Then Used resilient channel for air gap , then drywall ( soundbreak xP ) green glue then another layer of the same drywall. I was thinking limp mass behind the wall with diaphragmatic effect. With the wall itself on resiliency channels getting some of that effect as well.
@@soundproofyourstudio It ls a room within a room and not touching the structure of the house. It added reduction to the walls before entering the Rockwool cavity that has another air gap behind that to the exterior walls with drywall and more insulation behind that. It added mass , another air seal and additional diaphragmatic effect.
@@soundproofyourstudio well I haven’t done it yet, but I seen a RU-vid vid where a guy tested it against green glue and it actually outperformed the gg. It actually has almost the same consistency as gg and it never hardens so it stays kind of spongy like gg. I’ll put a link to the video.
@@PearlLaneTV ah yes I have seen the Jack of All Ministeries videos. I mean you can always give it a shot. I wonder how he calculated his STC ratings and how that compares to lab tests. At the end of the day it is your money and your studio, so do what you like. I like to stick to the hard science since there are a million ways to discount every aspect of soundproofing.
@@soundproofyourstudio my build is actually in one of those sheds like the video u posted a couple weeks ago. Being that I’m only recording vocals and in a fairly quiet neighborhood, do u think the 2 layers of 5/8 no gg will be good enough isolation? And maybe even without the extra 2 layers of 5/8 in the cavities between the wall studs like u recommended? Do u think this would be a good idea?
Are there other damping compounds in the market? There’s someone online suggesting Roberts carpet adhesive, but of course that completely lacks any acoustic data and who knows if it hardens up after five years so…
A little off topic but I'm wondering, with the whole double wall system in the studio you built what is the total thickness of the walls? What is the external footprint vs internal? Thanks!
I opted for using carpet glue instead of Green Glue. Literally 1/10 or less the cost, and a few independent tests I saw demonstrated the TL values to be reasonably similar. Green Glue has become absurdly expensive, at least here.
I wouldn’t recommend carpet glue. No lab tests. Independent tests are not the same, besides glue does just the opposite. Green glue is not a glue. I don’t recommend green glue anymore.
@@soundproofyourstudio True, the lack of lab tests is a shortcoming, but the particular type of carpet glue in question isn't exactly a "glue" either in that it doesn't harden over time. Gearspace had an interesting thread on it where IIRC it was tested in an isolated environment over a period of months.
