For multi-storey buildings and apartment living, insulation between floors is a must. Insulating joists between floors can provide improved comfort and privacy by minimising sound transfer, and enhanced energy efficiency by helping maintain stable indoor temperatures. Shop our range of premium mid-floor insulation today.

Different Types of Between Floors Insulation

While all insulation will improve acoustic performance to some extent, purpose-designed acoustic insulation between floors is more effective for serious noise control. Another option is to install ceiling insulation between floors. Although typically used for ceilings, these products can also work well between floors, enhancing both acoustic and thermal comfort. Whether you choose acoustic or ceiling insulation for your mid-floor section, both will help improve energy efficiency, create distinct zones in your home and reduce noise transfer.

Thermal Insulation Options for Between Floors

Thermal insulation between floors helps regulate temperature across the space and improves energy efficiency.

Fibreglass Batts: Affordable and a popular choice. They are widely used for their thermal performance.
Polyester Batts: Perform well, are soft, easy-to-handle and are often made from recycled materials, making them ideal for eco-conscious builders.
Foam Boards: Offer high R-values in slim profiles, making them great for tight spaces or extreme climates.

How Acoustic Insulation Reduces Noise Between Floors

Acoustic insulation between floors reduces noise transmission between levels, enhancing comfort and privacy.

Glasswool: Great for absorbing airborne noise.
Polyester: A soft, easy to handle option with noise-reducing properties.
Mineral Wool/Rockwool: Excellent for both acoustic and thermal control.
Acoustic Foam Panels: Often used as an additional treatment in media rooms or home cinemas for targeted surface sound control. However, they are typically installed alongside bulk insulation, not as a substitute for it within mid-floor cavities.

Understanding R-Value for Insulation Between Floors

An R-value measures how well insulation resists heat flow, the higher the R-value, the better the thermal performance. For insulation between floors in Australia (for a general home), R2.5-R3.5 is typically recommended. You are required to use at least the minimum R-v

Choose Quality with Pricewise Insulation

Insulation between floors can make a noticeable difference to your overall comfort level and energy efficiency of your home. Pricewise offers a range of quality insulation brands and products backed by practical advice and friendly service.

Frequently Asked Questions:

Insulation between floors is insulation that is placed between the levels of a building. It helps to reduce heat transfer and sound transmission between levels, and improves energy efficiency.

While it’s not required for all buildings, insulation between floors is highly beneficial for multi-storey homes and apartments. It’s particularly useful for enhancing privacy by minimising noise transfer and improving comfort by maintaining consistent indoor temperatures.

During construction or renovation, insulation batts, panels or even ceiling insulation for between floors are placed between the joists. The space should be filled without a

Glasswool or polyester batts are the best choice for mid-floor insulation. We recommend the Knauf Earthwool Sound Shield, Bradford Sound Screen or the Pink Sound Break insulation batts. Ceiling insulation can also be repurposed for use between floors if suitable.

High quality insulation between floors can last up to 50 years depending on the material type and environmental conditions.

For internal floors, particularly where reducing sound transfer is the priority, an R-value of 2.5 is usually sufficient.