Installing Insulation In Your Wall (In 4 Easy Steps)

In our last blog, we had a look at installing ceiling insulation – giving you a comprehensive way to approach the task. Well, for today’s blog we’re going to be doing the same thing but instead concentrating on insulation batts for your walls. We’re going to be going through why it’s important to insulate your walls, what tools you’ll require and how to actually do it. Let’s dive right in.

Why is insulation for your walls important?

Wall insulation is an absolute must for any house. If you’re going to insulate your home then there’s no point just doing the ceiling. It will save you costs on your electrical bill as you won’t be needing to use your heating/cooling system as much and will keep you a lot more comfortable in general. By installing insulation in all parts of your house you’re guaranteeing a protected ecosystem.

1.     Measuring your wall

Measuring your walls is very simple. All you have to do is multiply the height and length of your wall. For example. If your ceiling is 2.7m high and 3.5m long, then it’s just a matter of multiplying 2.7 x 3.5 – which equals 9.45m2. Then if you have any doors or windows in that wall measure the same way (height x length) and deduct this total. The balance that remains is the quantity of coverage you will require in batts, and each pack has a specific coverage amount it will cover depending on which rating you choose.

If you pick a section in the middle of the wall and measure from the outside of one stud to the inside of the next, this will give you the stud centres (usually 450mm or 600mm) and this enables you to confirm what width of batts to purchase as they are typically made either 430mm or 580mm. You must measure first so you know the dimensions for when you purchase your insulation batts.

2.     Selecting your insulation (R-Values)

Insulation comes in differing R-Values – the higher the value the better insulation is offered. Wall insulation batts are available in R-Values ranging from R1.5 to R2.7. Ceiling insulation solutions have much larger R-Value ranges since heat rises, so more thermal protection is needed in the ceiling. That being said, wall insulation is crafted to perfectly complement your ceiling insulation and fit into your insulation strategy.

Always purchase a size slightly larger than what your dimensions are, as you really need that snug fit. If it is too snug, then you can cut some off and use them to fill in oddly shaped areas. Also aim to purchase an extra packet or two than what you think you will need as you don’t want to come up short.

You can refer to this guide to find out what region you are in and what the minimum R-Value your property should meet is. Melbourne, for example, is zone six, so the minimum R-Value for wall insulation is R2.8. Please note that this is an overall value for the entire wall and the materials you’ve used for your walls will offer some form of thermal protection – even if it’s a very low R-Value. These should be kept in mind when purchasing insulation for your wall. Double-brick walls, for example, have excellent thermal properties whereas weatherboard home’s do not.

3.     Gathering your equipment

You should already have your measuring tape from the first step. You’ll also need a sharp utility knife – preferably one that can be retracted – and appropriate PPE (personal protective equipment). This includes a long-sleeved top, pants, gloves, goggles and a face mask. This is to ensure you’re protected against any hazards as well as if the insulation you’re working with is a little itchy – such as glasswool.

4.     The installation process

The process itself is quite simple. If there are any live electrical cables in the vicinity then you should start by turning them off. Simply unpack the insulation batts and place them in your wall between joists. Make sure they fit tightly between them and that no gaps are left.

Use your utility knife to cut the batts so they can fit nice and snuggly into the cavities between the joists. You must leave no gaps when installing insulation as this will drastically affect its performance. Once you’re done, you can plaster your wall up – it’s as simple as that.

Are you looking for insulation batts for your wall?

Construction projects are still going ahead through the current pandemic and Insulation Essentials is still up and running – able to supply you with quality insulation solutions at great prices. We offer next working day delivery on our extensive range of insulation products and accessories. Our friendly experts can also help you find what you need if you require any assistance.

If you’re looking for insulation batts for your wall, then please get in contact with us by filling out the form on our website or calling 03 8339 7111.