Celotex Isover

Insulation for Internal Metal Stud Wall

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The primary purpose of an internal metal stud wall is to provide acoustic separation for airborne sound between two adjacent rooms within a dwelling, thereby improving the acoustic comfort of those within the dwelling.

The minimum permitted acoustic specifications are defined by Approved Document E (England & Wales) and Section 5 (Scotland), although it is often recommended to improve on this where possible.

These walls are typically constructed using metal studs placed at nominal 600mm centres finished with a sheet of plasterboard to each side.

The insulation of choice for internal metal stud walls is typically a glass mineral wool (GMW) roll or slab. Isover Acoustic Roll (APR 1200) can be installed as part of the internal metal stud wall construction between the studs to provide the level of sound reduction required according to Approved Document E (England & Wales) and Section 5 (Scotland).

The building detail is for illustrative purposes only. It does not constitute advice and should not be relied upon.


Insulation products to consider
Product Name Thickness Range Sizes Lambda BBA
ISOVER Acoustic Partition Roll (Apr 1200) 25-100mm Width 2x600mm, Length 9170mm-20000mm NA Tick Icon
ISOVER Acoustic Slab 50-100mm Width 600mm, Length 1200mm NA Tick Icon