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Knauf Earthwool Insulation Perth

The Ultimate Insulation Product For Ceilings, Walls, And Underfloors. 

Trusted by over 10,000 Aussie Home Owners


Insulation Extact Reviews

Earthwool Batts - The Feel Good Insulation


We are a supplier and installer of Knauf Earthwool batts for ceilings and walls for Perth homes. Though our extensive experience in the insulation industry, this product is by far the most cost effective, sustainable, long lasting, and high quality insulation material.

We have put together an extensive summary, an ultimate product guide as such, for Knauf Earthwool ceiling insulation!


If you're looking to make your Perth home more energy-efficient, comfortable, and eco-friendly, keep reading.


In this comprehensive guide, we'll explore how Knauf Earthwool insulation batts can transform your space and provide you with the ideal solution for your insulation needs in Perth.


Why Choose Knauf Earthwool Insulation?

Knauf Earthwool insulation is a game-changer when it comes to ceiling insulation in Perth. Here's why you should consider it:

  1. Exceptional Thermal Performance: With its unique structure, Knauf Earthwool effectively traps air and provides excellent thermal insulation. It keeps your home cool during hot Perth summers and cozy during chilly winters.

  2. Energy Efficiency: By reducing heat transfer, Knauf Earthwool helps lower your energy consumption, leading to potential cost savings on heating and cooling bills.

  3. Sustainable Choice: Earthwool insulation is made from 80% recycled materials and requires less energy to manufacture, making it an eco-friendly option for environmentally-conscious homeowners.

  4. Improved Acoustic Performance: In addition to thermal benefits, Knauf Earthwool also acts as an excellent sound absorber, reducing noise transmission and enhancing your indoor comfort.

  5. No Formaldehyde in the binder!

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The Earthwool® Ceiling batt range includes a selection of R-Values to provide builders, designers, installers and DIYers the opportunity to choose the best thermal performance for their project.


Earthwool®Ceiling batt will improve the thermal comfort and energy efficiency of the building in which it has been installed thus keeping it cool in summer and warm in winter.


Super-soft to handle and install, Earthwool® Ceiling batt is made using up to 80% recycled glass and with ECOSE® Technology, a sustainable, bio-based binder that contains no added formaldehyde.

Installing Knauf Earthwool Insulation Batts:

We will share how Insulation Extract treats every project when Installing Knauf Earthwool insulation batts. While it is a fairly straightforward process, we ensure the insulation is installed to AS3999 Insulation Standards. This is the regulatory requirement when installing insulation. 

Here's a step-by-step guide to help you understand what we go through with the installation works at your Perth Home:

Step 1: Measure and Plan

Before we start, we either via google maps measure the ceiling area accurately, or have a team member from Insulation Extract come out for a free site and measure to determine the quantity of insulation batts needed. We also measure the width of the joist spaces to ensure the installation has complete coverage without compression, or gaps.

Step 2: Safety First

While there is no harm in handling the eco friendly insulation our team still wear appropriate protective gear, such as gloves, goggles, and a mask, to avoid irritation from debris inside your ceiling space.

Step 3: Prepare the Area

We need to ensure the area is clear from dust, debris, so we can complete a clean install. Check out Removing Insulation or Ceiling Vacuum services we offer to prep the area to maximise your return on investment.

Step 4: Unroll the Batts

We carefully unroll the Knauf Earthwool insulation batts and lay them evenly between the ceiling joists, ensuring a snug fit without leaving gaps. They can be laid over a certain rated ICD LED downlight.

Step 5: Cut and Fit

We usually use a sharp utility knife to cut the batts to fit around obstacles like wiring or vents. making sure we avoid compressing the insulation to maintain its effectiveness.

Step 6: Cover the Entire Area

We continue installing the batts until the entire ceiling area is covered, maintaining a consistent layer of insulation throughout the ceiling space.

Step 7: Seal Air Leaks

We do a final inspect for any gaps or openings and seal them with appropriate materials to prevent air leakage.

Where to Get Knauf Earthwool Insulation in Perth.

We work directly with Knauf to get you the Earthwool insulation range. We are the few in Perth, that buy in container loads weekly, passing on wholesale pricing to you.


Earthwool Specifications 


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Why Choose Us to Install your New Earthwool Insulation?


We are the only WA company to gain Knauf Insulation accreditation as a Approved Installer of Knauf Insulation blow in products. All our installers are regularly assessed and tested to ensure all installations meet the highest standards set out by our company goals and Knauf Insulation.

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All the products we supply & install are CodeMark™ approved & tested. CodeMark™ is the highest level of product compliance in Australia, which is your assurance of the product’s suitability for use in your home and that it will perform as it should. CodeMark™ certification will also provide a smooth compliance pathway with local building authorities


Insulation Extract is both a HIA & Master builders member in WA. We are more likely to be up to date with the latest regulations and techniques and are committed to the sustainability of the industry as a whole. Members are also subject to a Code of Conduct, which contains ethical standards ensuring the highest quality of workmanship is achieved.

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All our staff are fully insured. We have $20 Mil public liability and full workers compensation giving you peace of mind that you are dealing with professionals.

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