Green Glue Calculator

Customers Questions and Answers

1) Royce L: How would you reduce the sound of a wall fans. Would I de couple the main wall then use this product?

Trademark Soundproofing Reply: Hi Royce, If the sound is vibrating to the other side of the wall. Then yes.

2) Steve S: In the case where you want the "best" solution and apply 3 tubes/4x8 sheets of drywall and the calculator says you need 4 cases of the tubes to do 435 sq.ft., how many buckets would you need for the same "best" coverage?

Trademark Soundproofing Reply:

You would need 2 green glue buckets.

3) Matthew M: I am designing a multifamily new construction project and need to specify a floor assembly that meets both STC and IIC ratings of 50+. Are there rated systems that use Green Glue between subfloor layers? I would like to avoid using gypcrete on the project, which seems to be the most prevalent approach. Thanks for your help! Matthew M M S Development

Trademark Soundproofing Reply: Hi Matthew. We have asked our tech dept to email you an STC floor test utilizing Green Glue.

4) Krishna : Hi.good morning. Do you have distributor in India for your products. Kind regards. Swamy.

Trademark Soundproofing Reply: Hi. Sorry we do not. We do ship internationally for orders over $1,000.00 if that is an option for you.

5) Doug Ga: I am renovating a basement and plan on a double, 5/8 type X drywall ceiling on joists 16" O/C. What would the STC rating increase be if I apply one, two, and three tubes of your product per sheet? The area is approximately 800 square feet. Thanks, Doug Galloway

Trademark Soundproofing Reply: 2 tubes will add 9 STC points. 1 Tube about 5 STC points and 3 Tubes about 10. 2 Tubes is the way to go.

6) Peter: I have a 300 square foot basement with the plan to use quietrock as the lid component. Unfortunately, I was not advised by the insulation contractor that the spray in foam insulation we applied is not good for sound even though I specifically mentioned it many times over. I am trying to solve the problem now before drywall. My construction is 2 x 12 and we have 9 inches of sprayed foam insulation in the floor I was considering after reading many posts to install five eights drywall and then the quiet rock. Would it be a prudent practice to apply the green glue between the two layers of drywall? Right now with no drywall in place I get almost 100% sound transfer through the phone which has become very disappointing. Please help. Ceiling height is a mere 7 ft so the footsteps are very close to ear level when you are in the space.

Trademark Soundproofing Reply: It would help with about an extra 4 STC points. For footstep noise you would really need to decouple the ceiling and/or add a rubber underlayment on the floor above.

7) Bryan: I am trying to figure out the first of two layers of wall board I want to install in soundproofing a large bedroom. I know I want to have 2 layers so I can decouple with the Green Compound. I was going to use the "soundboard" option that Home Depot carries as my first layer on the studs. It is a light weight almost insulative kind of board. Can the Green Compound work on that substrate when using dry wall as the second layer or must it be primed? And lastly, instead of using the soundboard would it be more advantageous just to use the 2 layers of drywall and forget the soundboard altogether? Thank you for your consideration.

Trademark Soundproofing Reply: The Green Glue can be used between soundboard and drywall however 2 layers of drywall will be better and you can eliminate the soundboard.

8) Russ: Hello, I am sound proofing a room that’s 300 sq and using double 5/8 drywall. How much Green Glue should I purchase? Thanks

Trademark Soundproofing Reply:

Depends on how many walls you are doing in addition to the ceiling. You need 1 tube per every 16 square feet. So take the total square footage you will be using Green Glue on and divide by 16 (if it is on 300 sf, it would be 19 tubes).