How To Install Acoustic Barriers To Solid Floors

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Sound Proofing System and acoustic membranes

As part of our launch of our acoustic barrier range this article will explore how to provide an acoustic barrier to a solid floor.

When we talk about solid floors we generally mean concrete floors covered by screed. These floors can be found in and above basements, in residential to domestic conversions and in purpose built apartment blocks.

More detailed guidance for the design and install of acoustic barrier systems is laid out in the British Standard BS 8233.

Build Up – Solid Floors and Preparation.

To damp substrates an appropriate waterproofing system is installed, this could include the use of a Slimline Membrane system like Delta FM Membrane or a tanking slurry such as Koster NB1

Where thermal insulation is required, this is installed first. This could be a system such as Danopren TR100, we can help advise on the suitable thickness to meet your required U Values.

Uninsulated floors can benefit from levelling before application – Koster SL Premium is a great way of levelling damp or problem floor slab.

Installation of the acoustic membrane.

We supply two thicknesses of the Danosa Impactodan system, both provide great performance with minimal build up.

Impactodan 5 – a super low profile 5mm acoustic membrane which provides protection up to DnTA >50dBA

Impactodan 10 – a higher performance 10mm acoustic membrane which provides protection up to DnTA >55dBA

Joints between the membrane sheets are sealed using Danosa Acoustic Tape 70

The Impactodan Acoustic Membrane is terminated at solid internal walls using Danosa Acoustic Tape 200 

A screed topping can then be installed over the acoustic membrane to provide a finished surface.

You can watch a useful installation video of the Impactodan system here.