sound travel through shared floors and ceiling

lildrum-aboy · Post by **lildrum-aboy** » Tue Nov 22, 2005 8:25 am

maybe this is obvious:

I have a live and control room that share the same concrete floor and roof(basement)

Does it make sense to still do every isolation technique possible such as double wall, double window and RC etc. due to flanking that will inevitably occur? (these walls tie in at the ceiling)
I can't completly have room inside room constuction.

Is there a way to help this?
What would you do to create isolation and high STC levels in this environment?

thanks!!

JohnGardner · Post by **JohnGardner** » Tue Nov 22, 2005 8:45 am

Sounds like my room.

Here's what I have done.

(1) Build new walls with rubber top and bottom.
(2) Attach a hat channel to existing ceiling with two layers of 5/8th board and 25mm gap stuffed with rigid insulation
(3) Lay rubber matt on the floor and then screw down two new layers of one inch particle board flooring.
(4) Build new wall on control room side.

I am almost done and think, for my purposes the room will be fine. My guess at an overall STC is 50-55 and any flanking will be tolerable.

Check out my thread in the forum for some progress pictures.

JG

lildrum-aboy · Post by **lildrum-aboy** » Tue Nov 22, 2005 8:55 am

what do you mean by a 25mm gap, and 2 different thicknesses of board would'nt be better?

Post by **sharward** » Tue Nov 22, 2005 9:23 am

lildrum-aboy, I repeat:

Study the forum like you're preparing for a critically important exam... It will be a test of your project, your budget, and your sanity.

Don't miss my "Stages of Soundproofing Enlightenment" thread.

If you're skimming the forum for information, you're going too fast. You need to slow down and let all the richness of this resource sink in so that it saturates your brain.

There will be a pop quiz, so study hard!

If you're not familiar with the "gap" to which John refers, then you're apparently not familiar with the "air" part of "mass-air-mass," and that means...

You need to stop and return to studying the threads on this forum.

Read the stickies/announcements. All of them. And follow the links!

We're happy to help, but you need to get your brain dirty first.

lildrum-aboy · Post by **lildrum-aboy** » Tue Nov 22, 2005 9:35 am

sorry, i didnt realize that he was referring to a hat channel.

giles117 · Post by **giles117** » Tue Nov 22, 2005 2:05 pm

a floated floor will help isolate/reduce/eliminate flanking transmission noise. I;d float the control room. What is your basement height.

You can seriously reduce the noise more than you realize, just requires doing all the techniques...

what limits you from a room in a room (the basement is a big room..so your studio would be the room inside that basement room