Skip to main content
Back to articles

Should Partition Walls Be Insulated?

A question we have come across from some of our customers is whether a partition wall should be insulated or not.

In short, yes it should! But why should they be insulated? What are the benefits? And what insulation can you use?

We’ll answer those questions for you and provide you with more insights into the reasoning.

Why Should You Insulate a Partition Wall?

There are two main reasons why you should insulate a partition wall.

The first reason is to enhance its acoustic properties. If you have ever been in an office where the partitions between meeting rooms are not insulated, you will know how loud it can be! Partition walls that are not insulated allow sound to travel through them very easily, meaning that everyone in the office can hear every little noise. This can be very disruptive and make it difficult to concentrate. By insulating the partition wall, you will significantly reduce the amount of noise that can travel through, making for a much more peaceful working environment. The same principle applies in the home and will reduce the noise transfer between rooms.

The second reason why you should insulate a partition wall is for thermal protection. In the summer, insulated partition walls will help to keep the room cool by preventing the warm air from adjacent rooms from entering. In the winter, they will help to keep the room warm by trapping the heat in.

What are the Benefits?

As we have mentioned, there are two main benefits to insulating a partition wall – to enhance its acoustic properties and to provide thermal protection. These can be achieved by installing soundproof insulation and thermal insulation. But what are the specific benefits of each of these insulation types?

Acoustic insulation:

– Reduces noise levels in the office or home

– Creates a more peaceful working environment/living space

Thermal insulation:

– Keeps rooms cooler in the summer

– Keeps rooms warmer in the winter

What Type of Insulation Should Be Used?

There are many types of insulation that can be used for a partition wall, but we would recommend Rockwool insulation slabs. Rockwool is a type of insulation made from rock mineral wool fibres, which makes it very durable and long-lasting.

These materials are dense and absorb sound so it is harder for the soundwaves to pass between rooms. To give you an idea of the density of Rockwool slabs, Rockwool RWA45 100mm, which is our most popular acoustic insulation slab, has a density of 45kg/m3.

It is also a good thermal insulator – with a thermal conductivity value of 0.035 W/mK – meaning that it will help to keep the room cool in the summer and warm in the winter.


To sum up, we would highly recommend that you insulate your partition wall as it will provide both acoustic and thermal insulation, making for a more peaceful and comfortable working or living space. For best results, we recommend using Rockwool insulation.

If you’re unsure of what type of Rockwool insulation to use or want to find out about partition wall insulation, then contact our sales team and they will be more than happy to help.

Back to articles