Ceiling Soundproofing

When soundproofing a Ceiling, it is necessary to improve three basic components.

1 – The mass of the ceiling- This is normally achieved by adding acoustic plasterboard and high density products.

2 – The Resilience of the ceiling- This is the springiness of the ceiling. Without this, the addition of the mass will have very little impact. The Genie clips are the best form of resilience we know of. 

3) The sound “absorbency” of the ceiling. By adding different components the sound gets trapped more easily within the ceiling; here we prescribe the easfit slab.

Remember that every 10dB of performance uplift corresponds to roughly a 50% improvement in the perceived performance of the wall. So 20dB would indicate a 75% Improvement over and above the original wall.

Good - Resilient bar Ceiling system

Where you are constrained by height issues the choice of a resilient bar ceiling maybe your only practical choice when soundproofing a ceiling. With this solution will lose just over an inch (35mm) from your original ceiling height. 

The resilient bar, or sound breaker bar works by decoupling the new suspended ceiling from the joists. The new ceiling is in effect floating off the joists via lightweight corrugated steel bars. The sound is absorbed as it travels through the corrugated flange of the resilient bar.

Better - Genie Clip Soundproofing

The Genie clip ceiling is the best performing suspended ceiling system available from both an airborne and impact sound perspective.

A suspended ceiling is where you are attaching the sound proof system to the existing joists.
In performance terms it is far superior to a resilient bar system and second only to a full independent ceiling.

This extra performance derives from the much higher level of resilience that is manifest within the Genie clip structure, the vibration of sound transmission being absorbed better with rubber than with the metal of resilient bars. In effect the mass of the new soundproofing surface that you are adding is much better isolated than is the case with resilient bars.

The Genie clip ceiling can be fitted either by retaining the original ceiling, or removing the existing ceiling plasterboards.

Best - Independent Ceiling Soundproofing

Where the impact sound from above is very bad, this is a ceiling soundproofing choice worth considering. Typically hanger systems and resilient bars are not able to cope with heavy vibration, the type that you might experience with young children thundering around in rooms above you.

If you are able to lose ceiling height, which, depending on the span of your room could be up to 225mm (7-9 inches) then this will be the best performing system