Installing Wall Insulation Polyester ecoMaster scaled EcoMaster

Are you looking to install wall insulation batts in your home or building? Adding insulation to your walls is a great way to save energy and make your home more comfortable. Insulation batts come pre-cut, so they’re easy to work with. With some patience and the right supplies, you can insulate your walls in a few steps! 

Old or New?

When considering how to go about fitting wall insulation there are two schools of thought; Retrofit or new build. For the most part, the actual installation  process is the same. In this blog we focus on fitting insulation in new homes or a new addition to your home. For the process for retrofitting insulation, please check out this blog on how to retrofit wall insulation in an existing home.

For a new build, the hardest part of the process may be in deciding what type of insulation to use. 

Please check out this blog on the different types of insulation and why they would suit your home’s needs. 

Measure your Walls. Step 1:

Measure your walls you wish to insulate to determine the amount of insulation you need. To learn more about how to calculate this please check out our blog on How to measure up for wall insulation

Create a still air gap. Step 2:

If you are opting for a still air gap insulation method follow this step, otherwise go to step 3. Install your sarking/vapour barrier to the external side of your wall substructure. Lay the sarking flat on the wall and staple to the timber structure, ensuring to overlap and tape where two sections join. The sarking must be fitted in place thoroughly to ensure it is not moving around and is sealed off sufficiently to create the required still air gap and create a barrier between your external wall lining and your internal wall lining. The external wall lining can now be installed. 

Install your insulation. Step 3:

If required, cut the insulation batt to size with a knife or an angle grinder with a metal cutting disk. Install it from the inside against the external wall lining or the newly installed vapour barrier. The insulation should be installed snuggly between the timbers of the wall cavity that you are insulating.

Most likely the structure of the wall will be suitable to use the standard width of the insulation batt, meaning you will only have to cut your insulation to suit the height of your wall. 

Be sure to not compress or force insulation in place as this will reduce the effectiveness Cut insulation around power cables or plumbing running throughout and penetrating your walls and insulate around these services as best as possible; It is important that insulation does not stick out past the extent of the timber because it will hinder the installation of your plaster wall linings. 

Installing Wall Insulation Around Powerpoints EcoMaster

Repeat this process until each wall cavity is filled with insulation and hold it firmly in place with staples or tape if necessary. 

Install insulation into the gaps throughout the wall, most often found around the structure of windows and doors.

Installing Wall Insulation Tearing Polyester ecoMaster EcoMaster
Installing Wall Insulation Short Lengths ecoMaster EcoMaster
Installing Wall Insulation Short Length ecoMaster EcoMaster

Lining the walls. Step 4:

Now you can line your walls internally, being careful not to pinch insulation between the wall lining and the stud structure of your walls. Measure and mark out your wall lin.

Start enjoying the benefits

By following the steps in this article, anyone can successfully install wall insulation batts in their home quickly and efficiently and reap the rewards for years to come.

People Also Ask:

⇒ What R-value do I need for walls?

We recommend installing the highest rated insulation in your wall. R2.5 is the highest rated polyester wall insulation batt available and offers great insulation properties over a very long timespan.

⇒ What kind of insulation is rodent proof?

Polyester wall insulation batts are practically Rodent Proof. resistant. Rats do not like polyester insulation because it is heat bonded and has long fibres. That means:

⇒ What’s the difference between wall and ceiling insulation?

The main difference between Polyester Wall Insulation and Ceiling insulation is the available rating and size. Polyester wall insulation batts are available in R2.5 rating and in standard wall and partition sizes, 90mm thick and 75mm thick respectively. Ceiling insulation is available in Higher R values, and as such is thicker than wall batts.

What’s Next?

We hope this article has helped you learn how to use simple ways to save on your utility bill. This in turn will help you on your energy and thermal efficiency retrofit journey to make your home more comfortable all year round, and reduce your costs and carbon emissions.   

Next, explore why overstuffing your wall is a mistake.

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Insulate your walls

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for greater comfort and smaller bills.