acoustic solutions

ISOVER have developed a range of high performance products to offer excellent acoustic results. This range has been tested to ensure the highest possible decibel reduction, providing excellent acoustic comfort.

Find out about ISOVER acoustic solutions

Noise affects everyone

It is everywhere... in the street, on work-sites, in stations and airports but also in our houses. We are all sensitive to noise, whether at work or at home, alone or socially.

This well-known urban phenomenon causes numerous problems such as sleep disorders, stress or loss of concentration. Acoustic comfort is an essential element of the quality of life.

ISOVER has been conducting extensive research and development to achieve this goal for many years. It is constantly improving its products in order to enhance their acoustic performance. As a result, they provide the best available response to acoustic issues.

Silence is the feature of places where we feel comfortable.

Noise Sources

There are four noise sources in the building acoustics domain:

  1. Airborne noise from external sources: road, rail or aircraft noise, voices in the street, etc.
  2. Airborne noise from internal sources: conversations, Hi-Fi, television, etc.
  3. Impact noise: movements of people or furniture, falling objects, etc.
  4. Equipment noise: elevators, valves, ventilation fans, etc.

44%EU population exposed

44% of the EUs population is exposed to a harmful level of traffic noise according to WHO guidelines (Lday > 55 dB)

Choosing the right sound insulation solution

Before beginning any project, certain simple questions must be considered in the case of both new and renovation sound insulation project.

Timber Frame Masonry

New buildings

  1. Check the regulations applicable to the rooms to be treated.
  2. Aim for performance levels that exceed the actual requirements in order to take into account lateral losses and ensure occupant comfort.
  3. Choose the construction principles according to the required performance levels and building structure.
  4. Define the most suitable system for each wall.

Renovated buildings

  1. Identify the nature of the noise (airborne noise coming from within 
or outside the building, impact noise or equipment noise)
  2. Identify the walls to treat for noise transmission.
  3. Identify their nature: which material, and which joints with adjoining walls,
  4. Choose the insulation solution best suited to the objectives by referring to the regulations for new buildings and choosing systems whose attenuation index Rw exceeds the desired insulation level by 5 dB in order to take lateral losses into account and ensure occupant comfort.

Our products are independently lab tested in application to ensure performance

Recommended Timber Frame Solution

Twin leaf construction

70db reduction
  1. Two frameworks of timberstud
  2. ISOVER insulation
    (fully filled for zero U-value)
  3. Vario membrane + tapes
  4. 2 x Gyproc plasterboard
50mm ISOVER Acoustic Roll & 100mm ISOVER Spacesaver Plus
(Compressed to fit in stud cavities)
Gyproc Plasterboard
19mm Gyproc Plank + 12.5mm Gyproc Fireline
Lab sound insulation 100 - 3150Hz, Rw dB
Fire Resistance (mins.)
Overall thickness (mm)
Isover insulation used in conjunction with Gyproc plasters & plasterboards meet the requirements of the guidance for Separating Wall Type 4 as per examples given in Northern Ireland Building Regulations Technical Booklet G 2012. Pre-Completion Testing is required when specifying Building Regulations Technical Booklet G Guidance Constructions.

Recommended Masonry Solution

Single leaf construction

59db reduction

215mm block on flat

  1. 215mm solid block
  2. Gyproc Compound dabbed
  3. ISOVER Calibel Board
42.5mm Calibel Board both sides + additional 8mm to 12mm base coat of sand and cement
Wall type
215 dense concrete block
Db reduction
Although the above figures are based on site tests, design and sit conditions may vary. In addition testing is still mandatory under the regulations.

ISOVER Products



Understanding Sound and Noise

Find out more on how sound affects our everyday lives, such as the difference between airborne noise and impact noise


Acoustic Regulations

Acoustic regulations vary according to building type and location. Here is a useful summary of the regulations that are in place for residential building for both Republic of Ireland and Northern Ireland

Acoustic Video

Need more information?

For further information on all our sustainable insulation solutions please visit our main site.