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  • Sku: KIR4043

Knauf Earthwool R4.0 Ceiling Batts 195 x 430 x 1160mm (731832)

Included GST.
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.

Delivery Information

Can I Pick-up from your warehouse?

Yes, pick-up service is available from our Kingsgrove warehouse.

What is the pick-up hours?

Please plan to collect your ordered items from our warehouse during our designated pick-up hours, from 10am - 2pm Monday to Friday. This ensures a smooth and efficient retrieval of your products.

Pick-up on other time by appointment only.

Do you do delivery?

Yes, we offer delivery service.

Where does Wall Ceiling deliver to?

Wall Ceiling is pleased to offer delivery services to a wide range of suburbs throughout Greater Sydney, NSW.

      How much do you charge for delivery?

      • Delivery charge of $125 for deliveries within 20km radius from Kingsgrove warehouse;
      • Delivery charge of $195 for deliveries within 30km radius from Kingsgrove warehouse;
      • Delivery charge of $245 for deliveries within 40km radius from Kingsgrove warehouse;

      Our website will provide an accurate estimate of delivery charge during checkout process.

            When would you deliver the order?

              Items that are in stock are typically delivered on the following business day or prefer date selected by customer.

                Who is responsible for unloading the materials off the truck?

                Please note, it is customer's responsibility to unload the materials off the truck, either manually by hand or with assistance of a forklift on site. Please arrange adequate help to unload the materials.

                  What time will truck arrive during the delivery day?

                  We cannot specify an exact delivery time due to factors like 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.

                      What's your return and refund policy?

                      Returns must be made within 7 days of purchase and a restocking fee of 30% of the value of the goods returned will be applied. Some custom made products cannot be returned.

                      Following items are excluded from above policy and thus return or refund is not accepted:

                      • All sheet products including Plasterboard, Villaboard and other fibre cement  products.
                      • All ceiling tiles products.

                      For further information, please read our Returns Policy.

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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.