is floating floor a must......?

knightfly · Post by **knightfly** » Fri Aug 27, 2004 7:58 pm

What original plans? All I see is a basic line drawing with little detail anywhere.

Pretend you're a sound that's trying to escape each area of your plan - you (the sound, that is) should have to make your way through a couple of layers of mass (known collectively as a LEAF) of some kind (like two layers of drywall), then a fairly wide air space with insulation in it, then a second leaf preferable of at least two layers of mass, and THAT'S IT!! Anything more is going to cost you more and give you less isolation.

If you "frame up" a concrete wall and add wallboard, odds are you've already reached the 2-leaf limit for effective sound isolation - if you then add another wall, you will weaken the isolation you have, especially at lower frequencies.

If this isn't clear, you should STOP the framing til you understand the rules of physics and have us look at a wall detail - otherwise, you'll be pretty unhappy with the results... Steve

itsapleasure · Post by **itsapleasure** » Sat Aug 28, 2004 12:20 am

word up on the 2 leaf limit steve!

Sorta what i was thinking (although more cuz of the $$). I've got the office wall framed roughly and I'm gonna leave it that way for now.

I don't have any copies of the real drawings to post, so I linked to that ghetto drawing I did for a layout reference (so you know what I'm talking about when i refer to "office").

I'm gonna have a meeting of the minds and make sure this next stage is done right. I've accumulated a wealth of knowledge from this place since the original design, so this is the stage where I have to put it to the test (and trust my instincts).

thanks for getting back to me so fast.

T

knightfly · Post by **knightfly** » Sat Aug 28, 2004 5:58 am

No problem - for your "mind meld" session, you may want to print out the concept drawing I did here -

http://www.johnlsayers.com/phpBB2/viewt ... 5478#15478

That pretty well explains the basics... Steve