7 Eco-Friendly Insulation Options For Your Home

September 29, 2021

Insulation is a crucial step during the renovation or construction process of a house. Unfortunately, environmental and health and safety issues have been a concern in the industry for many years. For this reason, many companies have tried their best to produce eco-friendly insulation materials to ensure the thermal comfort of homes while saving more energy and preserving the environment.

Proper insulation serves as your shield from the outside elements, keeping you more relaxed and comfortable inside your home. However, to make the most out of the insulation, make sure to let professionals or service providers like knaufinsulation.com.au do the job for you.

If you want to insulate your home using eco-friendly insulation solutions, below are some of the options you can choose from:

1. Fiberglass

When it comes to the insulation market, fiberglass is known for its lightness and durability. It keeps every space thermally regulated by trapping air pockets and screening your home against sound transmission between walls or floors.

Malleable, fire-resistant, and lightweight, fiberglass has been used for insulation for many years. With the proper equipment, this insulation material is easy to install and cost-effective.

2. Spray Foam

This is one of the common insulation materials used in properties and is considered eco-friendly due to its high resistance value. With its high thermal insulating properties, you can save more energy from using spray foam insulation. The reason behind it is that it preserves the heat inside your home, making it easier to control your indoor temperature and reduce your energy bills.

Recent developments have made it possible to create a more eco-friendly version of spray foam insulation from vegetable oil or soy to help lessen its adverse effects on the environment.

3. Sheep’s Wool

Another eco-friendly home insulation is sheep’s wool. The wool fibers offer a thermal barrier and trap air. They also work well to regulate humidity. The best part about sheep’s wool insulation is that it doesn’t burn or itch easily when exposed to heat. The material may even absorb harmful substances in the surroundings.

4. Cotton

Similar to fiberglass insulation, cotton insulation is more eco-friendly as it’s often manufactured using recycled cotton scraps. One of the best things about using cotton insulation is that it works great in humid climates as the material is excellent in absorbing moisture.

Some kinds of cotton insulation are flame retardant, and the majority of them are insect repellants, which are highly desirable qualities. Even if there are many benefits to using cotton, its high price can be a downside. If you’re willing to spend more on cotton insulation, then don't think twice about doing so since its quality is truly worth the price.

5. Cork Insulation

This type of insulation has a negative carbon footprint since it’s biodegradable, recyclable, renewable, and natural. It has no added chemicals, and the materials used to manufacture it include water and cork. Cork won’t off-gas, and its surface doesn’t attract pollutants and dust. It’s naturally antimicrobial and anti-fungal.

When it comes to benefits, cork insulation has countless to offer. It has a high and stable resistance value compared to other insulation materials. The high vapor permeability of cork also means it can breathe, which is an excellent attribute for insulation, enabling the wall to dry out.

So, if you’re looking for an eco-friendly alternative to synthetic foams, cork insulation is a good choice, regardless of your budget. With its benefits and long-life service, you can be sure that you’ll get the best value for your investment.

6. Cellulose

Cellulose insulation is a type of eco-friendly insulation that’s composed of recycled materials and plant fibers. In fact, some companies offer cellulose insulation that’s composed of recycled newspapers, which makes it more eco-friendly. It’s also composed of boric acid-like cotton insulation. Moreover, it helps prevent noise pollution in your home.

7. Aerogel

Developed in the late 1920s, aerogel is highly recognized as one of the most useful and unique eco-friendly substances found on the planet. It is made by getting rid of the liquid from silica in a hot and high-pressure environment.

When the liquid is removed, the light material left is mostly air. Even if it’s an airy and lightweight material, it prevents and blocks heat from passing through your home’s wall. Other than being fireproof, it can also absorb water and oil.

Unlike other eco-friendly insulation options, aerogel has a high resistance value, making it more effective for insulation. However, it’s expensive, and you may need to end up spending more on your home insulation needs. But, if you have the budget, your investment won’t go to waste as aerogel insulation can help slash your heating bills this winter.


Eco-friendly insulation options aren’t only beneficial for your home but also benefit the environment. However, since every home is unique, it’s crucial to consider some factors when deciding which material is best suited for your home. While there’s no right or wrong choice when it comes to insulation, it should be installed by professionals to work efficiently.



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