Installing insulation in a wall

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Insulation acts as a barrier to heat flow, and will therefore help to keep heat inside your home during winter. Insulating the walls, ceilings and under floors can increase the thermal performance of your home, helping to reduce energy bills by up to $450 per year.

Insulating your home is a simple and straightforward process that can be done over the weekend as a DIY project.

Up to 30 of internal air temperature escapes through the ceiling, so this is the best place to begin upgrading insulation levels. You should aim for the highest R-Value your budget will allow, in order to gain the maximum benefits. The higher the R-value, the better the thermal performance of your insulation.

Glasswool insulation provides high thermal and acoustic performance and is one of the most sustainable insulation products available. The Earthwool® range of glasswool insulation offers a super-soft option. Earthwool is easy to cut and handle, and contains no added formaldehyde.

All Earthwool products from Knauf Insulation are made using recycled glass and with ECOSE® Technology, which is based on rapidly renewable materials instead of petro-based chemicals.

Earthwool Ceiling Batts R4.0

Earthwool Ceiling Batts R4.0 are supplied in both 430mm or 580mm widths to suit common ceiling joists. Readily available at Bunnings, they provide a cost-effective thermal and acoustic barrier to help keep the home warm in winter and cool in summer.

Earthwool DIY Multi-Use Insulation Rolls R2.0

Earthwool DIY Multi-Use Insulation Rolls R2.0 are an excellent solution for increasing the thermal performance of your home. The rolls are easily transportable and produced at 90mm thickness to make it easy to use in walls and for top-up insulation in ceilings. The rolls are available in 430mm and 580mm widths from Bunnings.

Earthwool Acoustic Batts R2.5

Earthwool Acoustic Batts R2.5 provide a solution for increasing the acoustic performance of internal walls. The R2.5 wall batts are available in 90mm thickness and at 430mm or 580mm widths, to suit common wall studs. The acoustic batts can help to make a home more peaceful and comfortable by absorbing sound transmission between rooms such as bathrooms, media rooms and play rooms.

Earthwool Acoustic Batts R2.5

Earthwool Underfloor Insulation Rolls R1.7 come with a wind wash barrier that improves the thermal performance of the insulation and your home. The wind wash barrier provides protection from air movement under the floor to ensure the thermal performance of the insulation is not compromised. The rolls are suitable for timber floors and can be stapled in place.

How to install ceiling insulation


How to install wall insulation

Insulating your home doesn’t have to be a chore. A home with insulation is much more comfortable than one without, plus it can help slash your heating bill in winter.

Click here for more information on the Earthwool range of products, click here.