Insulation. Homeowners rarely discuss the type of insulation in their homes but it’s just as important as selecting new flooring options or decorating the bathroom. While not as fancy as other areas of home improvement, it’s a vital part that contributes greatly to how comfortable you’ll feel in your home. Insulation provides warmth in the winter and helps your home to stay cool in the summer months. This is why when it comes to selecting insulation for your home, it's important to do some research. With this guide, you’ll be able to purchase the right selection for your home.

Depending on the type of insulation installed, it should last about 15 years. This can change depending on the type of insulation used and other environmental factors, which add to degradation. Here some a few signs that it may be time to replace your insulation:

Your Heating Bill Is Increasing- When your bill starts to gradually increase this is a sign that your insulation needs to be replaced. As more heat leaves your home, it will cost more to keep it warm in winter.

Indoor Drafts and Changing Temperature- The temperature in your home should be stable when all of the doors and windows are closed. When you start to feel a draft or notice that some rooms vary widely in temperature, these are signs that its time to replace your insulation.

Once you’ve established that it’s time to replace your insulation, a decision has to be made about what type of insulation to purchase. This is a brief breakdown of the most common types of insulation.


This is the most common type of insulation and is very affordable. Due to the way it is constructed, fibreglass is used to minimise heat transfer. However, it should be noted that the proper safety equipment needs to be used when handling this material. Glass powder and tiny shards of glass are formed in the fibres causing damage to the eyes, lungs, and skin.


If you care about the environment, this is the way to go. Cellulose comes in a loose form constructed of recycled cardboard, paper, and other materials thus making it very eco-friendly. It also is good for minimising fire damage. While cellulose is a cheap type of insulation, it can be difficult to find someone to install.

Mineral Wool

Mineral wool isn’t commonly used in areas with extreme heat because it is not fire-resistant. With this in mind, it is not combustible. Mineral wool is really good for insulating large areas. Unlike other types of material, it can be purchased as batts or loose material.

Pro Tip: Mineral wool can refer to several types of insulation including fibreglass, rock wool, and slag wool.

Polyurethane Foam

This type of foam is fire resistant and can be used in areas that have no insulation. Not as thick as other types of insulation, it still helps to get the job done. It’s light insulation that is normally sprayed onto the areas.

Still have questions on what type of insulation to purchase, or how much to buy, then give us a ring at (01) 905 9355! We’ll be happy to help!