Built-Up Metal Walls

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APPLICATION OVERVIEW

Our mineral wool insulation solutions for built-up metal walls provide very high levels of sound absorption, and can achieve outstanding levels of sound insulation when combined with the separation between internal and external metal sheets.

Built-up metal walls are most commonly installed on non-residential buildings such as offices, shops and warehouses providing very high levels of thermal insulation.

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RECOMMENDED PRODUCTS

Why Mineral Wool?

  • Mineral wool rolls knit together at joints, reducing the potential for unwanted loss of thermal and acoustic performance.

  • Mineral wool can be used as a sound absorbing lining in conjunction with perforated metal liner sheets to control reverberation of internal sound which would otherwise be problematic.

Download our Solutions Guide    

Typical U-values
With rails at 1.20m spacings - using Earthwool FactoryClad Roll 32

Thickness (mm)Rails at 1.20m spacings
160 (2 x 80)0.22


Note: Generic rail and bracket U-value calculations can be provided by our Technical Support Team, however, for proprietary rail and bracket systems and all standing seam systems, the system manufacturer should be consulted for project specific U-value calculations.

Typical U-values
With rails at 1.20m spacings  - using Earthwool FactoryClad Roll 40

Thickness (mm)Rails at 1.20m spacings
1600.27
1400.31

Note: Generic rail and bracket U-value calculations can be provided by
our Technical Support Team, however, for proprietary rail and bracket systems and all standing seam systems, the system manufacturer should be consulted for project specific U-value calculations.

The above table should be used for guidance only.

Due to the complex nature of heat flow through these systems (due to the way they are assembled) it is not possible to calculate U-values using the normal simplified methods.

Our Technical Support Team can calculate the specification of insulation needed to achieve specific U-values (including the effect of thermal bridging for simple rail and bracket systems) but normally one would consult the system manufacturer, which is also the case for standing seam systems.

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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.