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Green Glue

post #1 of 1298
Thread Starter 
Is Green Glue available for sale yet anywhere? I'm almost to the drywalling stage for my home theater. Thanks much.
post #2 of 1298
Alan is posting a Power buy on Green Glue this evening.
post #3 of 1298
Thread Starter 
Quote:


Originally posted by Ted White
Alan is posting a Power buy on Green Glue this evening.

Great!
post #4 of 1298
post #5 of 1298
Those are some pretty impressive plots Ted. Looks like a great product.

Good Luck!
post #6 of 1298
Thank you and I won't call you Shirley.
post #7 of 1298
Ted,

I am in the process of building a HT.
I am doing room within a room and don't know if I would benefit from this product enough to make it worth while but I along with everyone else would like to know more.


Craig
post #8 of 1298
The product is worth it even for room within room type of construction.

We've not only used the product; but, have a pretty interesting demo in the store.

We have a transducer ... one of those items designed to be attached to a wall or ceiling to create a PA or background music source. We place the transducer on our 4' x 22' x 3cm marble counter top. We get music (rather loud at that). We then place two pieces of 5/8" stacked drywall on the counter and the transducer on the stack. Still get loud music. We then lay two 5/8" pieces on the counter (laminated with green glue between them). No sound. No music. Technically, this is impact noise, but the demonstration effectively illustrates dampening.
post #9 of 1298
Can Green Glue only be used between two sheets of drywall?
post #10 of 1298
No...
"two sheets of _______ " fill in the blank.
post #11 of 1298
This is one of those rare times that my lack of ambition has paid off. I have been on the framing portion of my "DE" designed theater for some time now. The original plan was to decouple the room from the rest of the house using the RSIC clips and hat channel. The Green Glue product has come out and, after many e-mails back and forth with Ted White and one with Dennis to get the wink and nod, I will be using the Green Glue rather than the RSIC/hat channel.

It is not cheap but the power buy helps greatly and I have all assurances that I will be thrilled with the results of the treatment. I am building a room that is 14'x9'x26'. You start adding up the sq feet involved in walls ceiling, stage, riser the numbers get big. I will get the added benefit of getting a bit of interior room back, as I am using dual 5/8 rock (Green Glue between) rather than the clips, channel, and 1/2 over 5/8 (clips remove a bit over 1 3/4 of interior space per side). I was tight in my isles so every inch counts!

I am even considering using this product in my office/guitar/hide from the world/spare bed room room, along side the theater.

At 50.00 off a 5 gallon order, there is money to be saved. I am very hopeful that I can be one of the testimonials of how stellar this product is, in the very near future.

Now I have to get off my butt adn start working on the basement again!
post #12 of 1298
I was in a pinch so Ted let me pre order some. Let me just say that Audio Alloy has great customer service. Ted was very informative through the whole order/questions process, let me purchase some ahead of time, and he said it would arrive Tuesday. Bam, I got home tonight (Tuesday) and it's sitting on the doorstep!

Can't attest to the actual sound proofing characteristics yet but the company certainly seems top notch!
post #13 of 1298
I have a quick question for Ted. What is the best way to utilize this product over a plywood subfloor on the first floor? Similar, to the acoustimat with 3/4" t&g plywood. Replacing the acoustimat with green glue or some other method. Possibly two thinner layers of plywood with green glue between each layer. How thick a layer does one apply of the green glue?

Thanks for any info
post #14 of 1298
Quote:


Originally posted by E. Martin
This is one of those rare times that my lack of ambition has paid off. I have been on the framing portion of my "DE" designed theater for some time now. The original plan was to decouple the room from the rest of the house using the RSIC clips and hat channel. The Green Glue product has come out and, after many e-mails back and forth with Ted White and one with Dennis to get the wink and nod, I will be using the Green Glue rather than the RSIC/hat channel.

Wow! The product is that good? I would love to save the ceiling height when I drywall by forgoing RSIC and hat channel, even if it costs a little bit more for the GG. I certainly cannot afford both as I will need at least 2 5-gallon buckets of GG to complete the ceiling and the walls.

Dennis, are they really that comparable in sound absorbing quality (assuming 2x 5/8 drywall connected drywall->GG->drywall->GG->joist)? Or would I not want to use GG between the inner sheet of drywall and the ceiling joists (and/or stud wall)?
post #15 of 1298
Justin...use the Green Glue.

Audio Alloy's Green Glue is a Design Cinema Privee "Approved Product".
post #16 of 1298
I am in the planning stage of my home theater and I have read many posts regarding Green Glue. I am interested to learn more about the product. Are the manufacturer's installation instructions available to view?

Ted, I am over near you from time to time. Is the product available to be picked up as opposed to being shipped?

Mark
post #17 of 1298
Quote:


Originally posted by Dennis Erskine
Justin...use the Green Glue.

Audio Alloy's Green Glue is a Design Cinema Privee "Approved Product".

Thanks Dennis.

Just to confirm, GG would go between the drywall and stud/joist as well?
post #18 of 1298
Quote:


We've not only used the product; but, have a pretty interesting demo in the store.

We have a transducer ... one of those items designed to be attached to a wall or ceiling to create a PA or background music source. We place the transducer on our 4' x 22' x 3cm marble counter top. We get music (rather loud at that). We then place two pieces of 5/8" stacked drywall on the counter and the transducer on the stack. Still get loud music. We then lay two 5/8" pieces on the counter (laminated with green glue between them). No sound. No music. Technically, this is impact noise, but the demonstration effectively illustrates dampening.


Dennis,

Might you have had a chance to make a similar stack of drywall using a conventional adhesive, and then compare to the Green Glue stack?

Thank you.

Regards,

DG
post #19 of 1298
Quote:


Might you have had a chance to make a similar stack of drywall using a conventional adhesive, and then compare to the Green Glue stack?

The drywall glued with liquid nails had no discerable differences to non-glued (just stacked) drywall pieces. I'm certain we could have measured differences but that was not the point of the exercise. Liquid Nails (construction adhesive) would not be considered a dampening agent in any case.
post #20 of 1298
When asking Dennis about what of 4 different options I could/should use (including the combo of GG AND RSIC clips) his response, CONCERNING MY ROOM, was to use the fallowing building materials in the following order.

Stud > Green Glue > 5/8 drywall > Green Glue > 5/8 drywall.

Again I do not know if this is the "universal recommendation or the answer to my needs. I do know that it appears to be much easier to deal with and allows me to keep more headroom and width.
post #21 of 1298
I've read many posts suggesting 2 layers of drywall. Many suggest 5/8" and 1/2" and others suggest 2 layers of 5/8". Obviously, for the purpose of more mass, 2 layers of 5/8" would be the answer. What about 5/8" firecode which is even more dense? What is the preferred? Is there a preference of hanging the drywall vertically or horizontally and on what layer is each direction preferred, if any?

Also, when using 2 layers of drywall and GOM to cover, does each layer of drywell need to be finished (mud and tape)?
post #22 of 1298
The recommendation for 2 different sizes is that they have different masses and thereby theoretically different resonances that will help to cancel each other out.

If doing 2 layers, you should caulk the seams at a minimum. The mud and tape doesn't need to be anything fancy, just something to cover the seam and add some mass to the joint where there is potential air leakage and a weak spot. Make sure to also seal the intersection where the bottom wall plate meets the floor.

You can go the same direction or different directions - really up to you. If you are going to go different ways, I personally go horizontal on the inital layer and vertical on the visible layer. This way, you have no 'butt joints' to deal with when taping and mudding to get an easier smooth flat finish. Also plan ahead and 'double up' some studs at where the seams will be (it will make your life much easier for a few extra bucks) and make sure that the seams from 1 layer don't line up with seams from the other layer.

When you put the drywall up, make sure to overlap the seams from the 3 surfaces:

Layer of ceiling
Layer of wall
Layer of intersecting wall
continue around the room
Layer of ceiling
Layer of 1st wall
Layer of intersecting wall
continue around the room



Make sure to caulk all of the joints and seams. The alternating pattern provides less of a straight path for sound to move through and provides nice places to thoroughly caulk and seal the joints. Also make sure to glue the layers together thoroughly with Liquid Nails to avoid rattling UNLESS you are going with some sort of CLD (vinyl, Green Glue, etc.)
post #23 of 1298
Chaz,

Green Glue, as Dennis mentioned, is designed for use between panels and can be utilized between any surfaces so long as one is porous (to allow the material to dry). An additional benefit in floors is reduced impact noise.

A tool is supplied with each order, application is the same for floors as walls, and coverage/gallon is ~60 square feet.

Regarding Drywall Adhesive acoustic performance (or lack thereof) please refer to the second graph here:

http://audioalloy.com/green_vs_other...ng_systems.htm

Just curious, how are we getting cost calculations that RSIC might be less than Green system?
post #24 of 1298
mleineke,

You are more than welcome to stop by anytime and look at my theater, however Green is manufactured in the far away land of Fargo.
post #25 of 1298
Best of luck on Green Glue, Audio Alloy guys! I'm looking forward to seeing the certified lab Transmission Loss Reports.

Regards,
Terry
post #26 of 1298
Ted,

Where did you see something about RSIC being cheaper than Green Glue? I must be blind.
post #27 of 1298
Quote:


The drywall glued with liquid nails had no discerable differences to non-glued (just stacked) drywall pieces.

Thanks.

DG
post #28 of 1298
bpape,

That was in reference to a previous comment in a post. With the Power Buy, Green is quite a bit less obviously.
post #29 of 1298
Ted

Is there an expiration date on the power buy? What is the shelf life of Green Glue in an unopened container? I am just in the planning stage of finishing my basement which will include a theater so I would not need to use it for at least 4 months but it would be nice to take advantage of the power buy price.

Thanks.

Mark
post #30 of 1298
Hi Mark,

We haven't set an ending date quite yet. When we do we'll announce it and you can decide then. It has great shelf life, but you may as well buy it closer to when you need it.
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