Bettering Ground Sound Insulation Efficiency5062829

De BISAWiki

As talked about in the title, two essential locations need to be seemed at when strengthening a floor construction: the airborne facet (tv set noise, songs, speech and so on.) is normally dealt with by implementing ceiling treatment options and mass to the program and the effect (footfall etc.) functionality is increased by the employed of resilience and isolation of layers.

Let's appear at how to offer with airborne seem insulation in the 1st occasion and then detail the steps to enhance the absorption of effect noise (despite the fact that, as you will see, there is an overlap between the two subjects).

Airborne sound soundproofing

In current dwellings (taking the normal instance of a residence converted into two flats, floor and first ground), the separating flooring building generally consists, izolacja akustyczna of the pursuing levels, from leading to base:

o Existing floorboards

o Timber joists

o Plasterboard ceiling immediately mounted to the joists

As you can probably picture, this nominal construction is not sufficient to individual two dwellings, becoming an inner partition at first. This technique would usually obtain a seem insulation overall performance of 35dB Dntw Ctr, way below the 43dB minimum need (see sound tests explained for far more particulars).

So, what remedies are needed to achieve satisfactory airborne functionality?

Several simple and not very onerous additions should be created to drastically enhance the soundproofing of this typical ground.

1st and foremost, any debris accrued among the joists should be taken off. For 150mm (six inch) or thicker joists, we would recommend the insertion of medium to large density (all around 40kg/m3) mineral wool among the joists. This will assist in absorbing medium to high frequencies, changing the sound power into warmth.