John Sayers' Recording Studio Design Forum Archive

Hey everyone, I'm working on the final design for my studio, and had a quick question about flanking paths.

I've got the room within the room set up, but on the outer leaf wall, can I tie this into the floor trusses above? The reason I ask is I'd like to be able to use this outer wall to support the inner wall via a neoprene brace (since the interior room will be independent). All the other walls are next to the foundation, so it's not a problem, but one wall is shared with what will be a living room.

If I screw this outer wall directly into the trusses above, will I see a dramatic degradation in flanking path transmission, or will the flanking path be eliminated via the interior wall of the double wall construction?

Thanks for the help!

Bryan

I'm no expert here, but if you have Rod's book, then look on page 298 fig. 12.5 Floor truss with improper wall below If not, get it. The flanking path won't be as much of a problem than the ceiling falling on your head. GULP!

"but on the outer leaf wall, can I tie this into the floor trusses above?"

Well, think about what you just said. The floor trusses on an existing building >should< be on the exterior/outer leaf.

But if it is a situation where you are installing a wall directly underneath floor trusses, then you do not want to directly attache the wall to the trusses. As a matter of fact, you would be better off locating the deflection of the truss per your paperwork if possible, and making certain that you build your wall with a clearance equal to that.

"will I see a dramatic degradation in flanking path transmission, or will the flanking path be eliminated via the interior wall of the double wall construction?"

No and hell no