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.