In danish building regulation, there is a specific requirement for the sound insulation of the door connecting a stairwell/hallway and a Living room.Often times danish acoustic consultants will refer to the sound insulation classification of the door when defining the …
We can run into Orthotropic plates, and unlike Isotropic plates, Orthotropic plates will have different characteristics in different directions. An example of an Orthotropic plate is wood, that have a vastly different bending stiffness parallel with the fibres if compared …
Will a resilient channel bar help with improving the Sound Reduction of a partition? While a resilient material for breaking up resonances and dampening vibrations, is a good idea, it usually comes with a bit more planning than usual. A …
Resilient Channel Bar for Sound Reduction – Good or Bad? Read more »
The weighted sound reduction index is derived with the help from a standardized curve In the frequency range 100 – 3150 Hz. The reference curve comes from the International Standard 717-1. The reference curve is shifted up or Down on …
Be aware of acoustic weakness and help avoid poor Sound reduction performance! In walls we often find electrical outlets. If these outlets are placed right up against eachother as shown below, they may result in a weakness in the wall …
Quick tip: Facades – When designing for optimal noise reduction and sufficient acoustic quality, remember to look for the weakest link in facades. Especially if the facade is towards a noisy Road.The weakest link, typically being the windows, will very …
The mass for predicting Sound Insulation. Looking into sound insulation prediction, you Will most definitely be met with the Mass Law. While the Mass Law may not offer great accuracy on its own (as sketched below for an acoustically thick …
Preventing Flanking Sound Transmission through lightweight constructions. In the sketch below, we’re exploring the issue of blocking the sound path within the inner wall of the facade. Think of it as installing a Block for unwanted noise. By ‘fortifying’ the …
Flanking Sound Transmission Issues – Lightweight Structures Read more »
What are floating floors?A quick breakdown of a typical solution for good sound insulation and low impact noise. Floating floors can provide exceptional soundproofing qualities, making them a favorable choice for residential and commercial spaces alike. Not only do they …
There are many ways to model the Sound insulation of constructions. A simple model of a single construction (usually thin single leafs) can be seen below. In the frequency range below the critical frequency the Sound insulation is mass controlled. …
