Super Soundproofing Community Forum

Soundproofing Forum Topics => Acoustical Questions? Ask here about Sound absorbsion, Reflection, ETC => Topic started by: Sam2011 on December 28, 2010, 05:45:50 PM

Title: Wall construction - Float them or Set the base plate
Post by: Sam2011 on December 28, 2010, 05:45:50 PM
Hello,

Soon I plan to start building interior walls within a cinder block building. Since I won't install a floating floor or a ceiling it won't exactly be a complete room within a room.

I really don't want any low frequency sound to transfer to the cinder block. Higher frequencies are not going to be an issue.

My question is, is it better to float (or completely decouple) the new interior walls from the floor AND ceiling or fix the base plate and decouple the wall at the ceiling joists only?

My thinking is that since the building already has fairly massive cinder block walls, it might be better to build interior walls that are completely decoupled from the ceiling and floor. If they have some flex maybe they will absorb the vibrational energy of low frequencies better than rigid walls or walls decoupled only at the ceiling.

Thanks in advance for any advice on this situation!
Title: Re: Wall construction - Float them or Set the base plate
Post by: Randy S on January 03, 2011, 06:48:35 PM
Decouple the entire room is the best option for low frequency. Or you can frame up then decouple off the new frame work with clips and channel and then install a floated floor.