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[DSJOHN NH]

Jay---that one was good!!!!!

[betterdrywall]

Originally Posted by TSJHD1

Lol! No man, I hope you're right. Or even close! Then carpenters might be able to hand with the pro's. (Get it? "He said... hang")

Tom

Ha Ha LOL how silly can I really be????? surly they wouldn't make a board lighter! ,,,, I think I am just too stupid to post here

[Ted White]

Originally Posted by SteveH

Yep and it's made from cork instead of gypsum for soundproofing.

I'm sure this was a joke, but this is a good opportunity to point out that lighter drywall = worse for sound isolation. Heavy drywall isolates *much* better.

[betterdrywall]

Originally Posted by Ted White

I'm sure this was a joke, but this is a good opportunity to point out that lighter drywall = worse for sound isolation. Heavy drywall isolates *much* better.

Ted thanks for this post,, I have not taken the time to check out the New Board yet, I am sure the cost will be higher, I only have sound issues with one room on my current remodel project. And that is due to the windows. I think I can reduce alot of the outside noise by adding on, and using a much better grade of windows.

[Ted White]

Hey BD. You can also install a soundproof window over the original one from the inside. THis way all the exterior window surfaces still match.

[betterdrywall]

Ted I do Have alot of working room for this area. and I may go ahead and remove the main window which is a large picture frame., old style single pane. Its nice when you have working room and can decide on your own .. Still doing Layout , and working on my Master bath design right now.

[SteveH]

Originally Posted by Ted White

I'm sure this was a joke, but this is a good opportunity to point out that lighter drywall = worse for sound isolation. Heavy drywall isolates *much* better.

Then why does insulation (SAB) which is very light deaden sound? would not air pockets in the board deaden the sound?

[Ted White]

Good point. The air alone works but not as efficiently as an insulation filled air cavity. The reason is we want resistance but not reflection. We want the sound wave to meet with resistance as it moves through the lower density insulation. This resistance expends the energy traveling as a wave into heat.

A rigid board will simply reflect sound, and not interact with it. Much less energy is lost with a reflection and the sound wave / resonance remains.

SAB (sound attenuation board?) is too dense, and provides far too little surface area for wave interraction. Frankly, it's use is limited in high performance sound isolating construction.

[SteveH]

Originally Posted by Ted White

SAB (sound attenuation board?) is too dense, and provides far too little surface area for wave interraction. Frankly, it's use is limited in high performance sound isolating construction.

Does not the 2nd sentence contradict the 1st sentence?

[Ted White]

It's use is limited "in", not limited "to." In other words, it's not used and recommended.