Internal Walls
Internal Walls

New Project (35) (1) (1).png

APPLICATION OVERVIEW

Acoustic performance is the principle requirement for internal walls, with both sound insulation and sound absorption being important considerations. The sound absorption characteristics of our mineral wool insulation solutions make them ideal for use in internal wall build-ups.

In certain buildings there may also be specific fire performance requirements for partitions separating specific room types making our non-combustible solutions an ideal choice for this application.

Icons_0.png

RECOMMENDED PRODUCTS

Why Mineral Wool?

  • Friction fitting absorbent mineral wool between studs closes joints, reducing the potential for unwanted gaps ensuring high levels of sound insulation.

  • Proven test results with all major brands of plasterboard provides assured compliance with sound related building regulations.

Download our Solutions Guide      Download our Internal/Partition Walls PDF

Sound Insulation Performance
Timber Stud Partitions

Stud Size (mm)FacingInfillSound Insulation (RwdB)
63x3812.5mm standard plasterboard each sideNone35
63x3812.5mm standard plasterboard each side50mm Earthwool Acoustic Roll40
63x3812.5mm Knauf Sounshield each side50mm Earthwool Acoustic Roll44

Sound Insulation Performance
Staggered Metal Stud Partitions

Stud TypeChannel sizeFacingInfillSound insulation (RwdB)Fire resistance (hours)
60mm I stud72mm2 layers of 12.5mm Knauf Soundshield each side50mm Earthwool Acoustic Roll571
90mm I stud148mm2 layers of 15mm Knauf Soundshield each side50mm Earthwool Acoustic Roll6211/2

Independent laboratory tested for proven use
with major plasterboard brands.

  •  Knauf

  •  Siniat

  • British Gypsum

Contact us for details on technical.uk@knaufinsulation.com

Sound Insulation Performance
Metal Stud Partitions

Stud TypeStud Spacing (mm)FacingInfillSound insulation (RwdB)Fire resistance (hours)
50mm C stud600 c/s12.5mm plasterboard Wallboard each side25mm Earthwool Acoustic Roll431/2
70mm C stud600 c/s15mm Knauf Fireshield each side25mm Earthwool Acoustic Roll491
50mm C stud600 c/s2 layers of 12.5mm Knauf Soundshield each side25mm Earthwool Acoustic Roll541
70mm C stud600 c/s2 layers of 12.5mm Knauf Fireshield each side25mm Earthwool Acoustic Roll542

Sound Insulation Performance
Twin Metal Stud Partitions

Stud TypeFacingThickness of insulation (mm)Sound insulation (RwdB)Fire resistance (hours)
92mm C stud19mm Knauf Plank and two layers of 12.5mm Wallboard each side100mm Earthwool Acoustic Roll692
146mm C stud19mm Knauf Plank and two layers of 12.5mm Wallboard each side100mm Earthwool Acoustic Roll742
COMPETENT-PERSON-CS-1001-1.png
For any U-value calculations for alternative construction build-ups, please contact our Technical Support Team on 01744 766 666.
For written U-value calculations, please email details of your full through construction build-up to technical.uk@knaufinsulation.com and we will respond accordingly to meet your requirements
We are a fully accredited member of the industry leading British Board of Agrément (BBA) U-value and Condensation Calculation Competency Scheme which promotes and assists accurate, objective and consistent calculations of U-values and condensation calculations within the UK construction industry. As part of our ongoing participation in the scheme, we are required to maintain written records for audit trail purposes.