Sound insulation to achieve Part E and improving sound insulation

[platforminc]

Hi everyone,

I'm currently working on a small project, although we don't need to meet Part E of the building regulations for sound insulation, I'd like to achieve a similar standard. My goal is to provide comfortable living environment with minimal sound transfer.

What steps should I take to improve the sound insulation for the stud walls (100mm timber stud walls) separating rooms and the ceilings (200mm ceiling joists) between floors? The joists and stud walls are made of timber.

From what I have also researched, it appears that its not a good idea to have spot lights as this would compromise the sound insulation ?
Any advice would be greatly appreciated.

The proposed floor finish is laminate flooring.

What composition of plasterboard to use ?

What type of sound insulation between stud walls and in between ceilings ? I have read about Rockwool RW3 and RW45 100mm thick, not sure here.
Are there any other steps that one can take to improve the acoustic insulation levels.

Thanks in advance!

 

[Deluks]

How much space are you prepared to lose?

 

[platforminc]

As much space as it takes to achieve Part E sound insulation.

 

[Deluks]

So many ways to skin this cat, but you'd be looking at resilient channel and 2 layers of plasterboard - staggered joins and tightly butted, acoustic caulk on the perimeter.
Rockwool to fill the voids, openings don't just mean downlights, but also electrical outlets, acoustic putty can be used on drylining back boxes.
YMMV

You can also use the channel on ceilings.

You can spend extra money on dense acoustic matting, specialist clips and fancy glues, but no-one can tell you definitively what will work to your satisfaction. The above suggestion will certainly lend some improvement.