There are numerous types of insulation materials, each with their own set of unique features and benefits. Some common types of insulation, used in the Australian built environment, are summarised below.
Glasswool insulation
Glasswool is made from fibres of glass which are arranged using a binder which gives them a texture similar to wool – hence the name.  […]

What is insulation?
Insulation is a general term used to describe products that reduce heat loss or heat gain by providing a barrier between areas that are significantly different in temperature. Insulation also acts as a sound barrier by reducing the level of sound transmitted from one room to another via partition walls or ceiling voids. […]

How does insulation provide acoustic benefits?
The heavier the mass of a layer of plasterboard, and the greater the cavity depth between two partitions, the better the sound isolation provided. Insulation within the cavity will also provide excellent sound isolation.
The “mechanical connection,” in other words the studs used between the two partitions is also important. […]

How is heat transferred?
Although heat can be transferred in a variety of ways, the three most common ways are:

Conduction
Convection
Radiation

In Conduction, heat travels through a solid material such as ceiling tiles, floor tiles, and walls.
In Convection, heat travels through a fluidic medium, such as air or water. […]