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  • Sku: KIR5043

Knauf Earthwool R5.0 Ceiling Batts 210 x 430 x 1160mm (2437543)

Delivery cost calculated at checkout.

Product Description

  • Thermal performance - keeps a building cool in summer and warm in winter
  • Acoustic performance - reduced the transmission of noise
  • No added formaldehyde
  • Non-combustible - AS 1530.1
  • 50 year warranty

Earthwool® Ceiling insulation batt offers superior performance, with the ultimate in energy saving properties, enabling you to keep your home cool in summer and warm in winter. It’s super-soft to handle and install. As well as providing a superior result, this product is extremely durable and comes with a 50-year warranty, so will stand the test of time.

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


R-Value Width
3.0 430 145 11.5
3.0 580 145 15.5
3.5 430 175 8.5
3.5 580 175 11.4
4.0 430 195 7.5
4.0 580 195 10.1
5.0 430 210 5.5
5.0 580 210 7.4
6.0 430 275 5.5
6.0 580 275 7.4

Delivery Options

Wall Ceiling is delighted to offer plasterboard supply service throughout Australia.

For orders outside of Sydney, please email us at with the items and quantities you require from our website, and we will promptly provide a manual quote.

Standard Delivery (7am - 4pm, Monday to Friday).

Standard orders are delivered within 1-3 business days in metro areas and 5-10 days in regional areas. Some products have a longer lead time as indicated on the product page.

Our office will call you before heading to your site. Please ensure adequate labour on site to help with unloading.

Please note:

Only select items are available for pickup.

Please give us a call before visiting. Our friendly staff may be out for delivery, and the warehouse might be unattended during your visit.

Delivery Information

Where does Wall Ceiling deliver to?

Wall Ceiling is delighted to offer plasterboard supply services throughout Australia.

For orders outside of Sydney, please email us at with the items and quantities you need from our website, and we will promptly provide a manual quote.

How much do you charge for delivery?

Customer will receive an accurate delivery charge during checkout.

What are the delivery options?

Standard orders are delivered within 1-3 business days in metro areas and 5-10 days in regional areas. Some products have a longer lead time as indicated on the product page.

Bulk orders with weight greater than 1.5T may need longer lead time.

Who is responsible for unloading the materials off the truck?

Our delivery driver will assist with unloading materials adjacent to the truck. However, it is the customer's responsibility to move the materials beyond that point.

What time will truck arrive during the delivery day?

It's difficult to predict precise delivery time due to factors such as traffic and weather conditions; however we will make every effort to deliver within the expected time frame.

Our delivery driver will contact you in advance, ensuring you are ready for the delivery.

Do I need to be on-site to receive my delivery?

Yes, if you are not available, please kindly arrange another person to accept and unload the materials on your behalf.

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How Insulation Works

When it comes to maintaining a comfortable living environment, insulation plays a pivotal role. But what exactly is insulation, and how does it function to regulate temperature in our homes and buildings? This comprehensive guide will delve into the science behind insulation, explaining its importance and how it effectively reduces energy costs and enhances living comfort.

The Basics of Insulation

At its core, insulation is a material designed to prevent the transfer of heat. Heat can move in three ways - conduction, convection, and radiation. Insulation materials are crafted to minimize all three forms of heat transfer, thus maintaining a consistent internal temperature regardless of external conditions.

How does insulation work

Conduction and Insulation

Conduction is the process by which heat moves through materials. Think of touching a hot metal object; the heat is conducted from the object to your hand. Insulation materials, such as fiberglass, foam, or cellulose, are structured to be poor conductors of heat. They contain tiny air pockets which drastically slow down the transfer of heat through conduction.

Convection in Insulation

Convection refers to heat transfer through fluids (liquids and gases). In buildings, this usually occurs when warm air rises and cool air falls, creating a circulating pattern. Insulation disrupts this air movement. Materials like wool or foam with a lot of air pockets limit the movement of air within them, thereby reducing the loss or gain of heat via convection.

Radiation and Reflective Insulation

Radiation is heat transfer in the form of electromagnetic waves. Radiant barriers, often made from reflective materials like aluminum foil, are used in insulation to reflect radiant heat away, rather than absorbing it. This is especially effective against heat from the sun. Foilboard is one of popular rigid insulate panel product which is manufacture and sell in Australia.

The Role of R-Value in Insulation

The effectiveness of insulation is often measured in R-values. The R-value indicates a material's resistance to heat flow. The higher the R-value, the better the material insulates. When choosing insulation, it's crucial to consider the recommended R-values for your area and the specific part of the building you're insulating.


Types of Insulation Materials

There are various insulation materials available, each with unique properties and applications:

  • Fiberglass Insulation: Made from fine glass fibers, it's commonly used in both residential and commercial buildings. Earthwool insulation is a type of fibreglass/glasswool insulation, however it is manufactured with a revolutionary ECOSE binder. This sets Earthwool insulation apart from their other competitors as it uses no formaldehyde which means its super soft, low itch and easy to handle.
  • Cellulose Insulation: Consisting of recycled paper products, cellulose is an eco-friendly option.
  • Foam Insulation: This includes materials like spray foam which expands to fill gaps, providing an airtight seal.

Insulation's Impact on Energy Efficiency and Comfort

By reducing the unwanted flow of heat, insulation plays a crucial role in energy efficiency. Well-insulated homes require less energy for heating and cooling, leading to lower utility bills and a reduced carbon footprint. Additionally, insulation contributes to a more comfortable living environment by maintaining a consistent internal temperature.

Get in touch

Insulation is an essential component in the construction and maintenance of buildings. Understanding how it works helps homeowners and builders make informed decisions, leading to more energy-efficient and comfortable living spaces. With various materials and technologies available, there's an insulation solution for almost every need and climate. Please contact Wall Ceiling for more information about Insulation products.