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Internal Walls - Separating

Every residential flat and apartment needs robust walls which block noise from the adjoining units.

To achieve proper acoustic protection between apartments, a separating wall needs to be designed with particular attention to the resistance to sound transmission, particularly to flanking transmission through the building elements adjoining the separating wall. Glasswool insulation is vital in framed walls.

Advantages

Separating walls are required to provide protection from noise by reducing airborne sound transmission between adjoining properties. The factors that influence the potential performance of a wall are its mass, the width of the wall and the sound absorption properties of materials that are installed in cavities in the wall. Glasswool products have excellent sound absorption properties and are used widely in separating walls to enhance their ability to reduce airborne sound transmission. They have the further advantage of providing thermal insulation which will be of particular benefit if there are different occupancy patterns between the joined dwellings, or if a dwelling is attached to an unoccupied dwelling.

Knauf Insulation Products

  • Premium - TP 138 is a high density faced glasswool product for lining masonry walls to maximise acoustic resistance.
  • Excellent - Thermolan TP116  is a medium density batt of glasswool with excellent sound absorption properties. This is suitable for framed wall construction.
  • Good – Thermolan Classic 040 is a lower density roll of glasswool with good sound absorption properties.
    This is suitable for framed wall construction


Knauf Insulation provide products that can be used as absorbent layers for the control of airborne sound transmission in separating walls.

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