Weathertight air barrier that still lets the structure breathe, controlling moisture and draughts
Intelligent vapour control that protects the build-up from condensation

from$2.99/m²

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Ametalin

Trade Select by Ametalin ThermalFloor Foil Insulation

Foil / Reflective

Combined thermal break, vapour barrier and reflective insulation in one
Designed for underfloor insulation

Trade Select by Ametalin ThermalBreak 7 Foil Insulation

Foil / Reflective

Combined thermal break, vapour barrier and reflective insulation in one
Designed for roof, underfloor and wall insulation

Bradford Optimo Saddles

Glasswool

5.0 (1)

Designed for underfloor insulation
Australian made, to Australian standards

Bradford Optimo Straps

Glasswool

5.0 (1)

Purpose-made fixings for a secure, correct installation
Australian made, to Australian standards

Knauf Earthwool FloorShield Insulation Batts

90 mm | Glasswool

Strong acoustic performance that cuts noise transfer
Softer to handle than standard glasswool, thanks to the ECOSE bio-based binder

Expol Polystyrene Underfloor Insulation

60 mm | XPS Foam

High thermal performance per millimetre, so you get more R-value in a thinner board
Rigid, moisture-resistant board that suits tight spaces

Kingspan Kooltherm K3 Underfloor Insulation

25-50 mm | Phenolic

5.0 (1)

Rigid phenolic board with one of the lowest thermal conductivities available
Australian made, from Melbourne

Kingspan Air-Cell Permifloor Insulation

Foil / Reflective

Combined thermal break, vapour barrier and reflective insulation in one
Australian made, from Melbourne

Kingspan Air-Cell Permifloor 500 Insulation

Foil / Reflective

Combined thermal break, vapour barrier and reflective insulation in one
Australian made, from Melbourne

Autex Greenstuf Polyester Underfloor Insulation

120 mm | Polyester

5.0 (1)

● Out of stock

Non-itch and safe to handle, so no gloves or mask needed and great for DIY
Underfloor options from R2 to R2.5

from$10.78/m²

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Out of stock

Underfloor insulation stops heat (and cooling) being lost through the flooring material. Even a completely sealed floor will allow the heat and cold to escape, and the greater the temperature difference is between outside and inside, the more you’ll notice that there’s something missing – namely underfloor insulation!

Purpose of Underfloor Insulation

Underfloor insulation in Australia makes your home more comfortable to live in and helps to reduce the cost of energy bills. It is not easy to estimate the energy savings of floor insulation in dollar terms, but a 10% reduction in energy use is most likely a conservative estimate. In winter time, you can expect the savings to be significantly higher!

Underfloor Options – Batts or Rolls

Autex Greenstuf Underfloor Insulation Rolls are perfect for homes where the floor has not been laid – but they can also be installed underneath a pre-existing floor. Knauf, Fletcher and Bradford all manufacture underfloor insulation batts to lengths of just under 1.2 m long, making them easy to handle in confined spaces.

Ceiling, Walls, Underfloors

The underfloor is just one of the three main areas of your home which should be insulated. Ceilings, and also walls – in particular external walls – should also be insulated with thermal insulation, with an R-Value to suit the construction type and climate zone of the house. Not sure how much you need? Call us on 1300 729 639.

Immediate Benefits of Underfloor Insulation

Chilly floorboards in winter time, possibly even hints of a draught coming up from beneath the house – these are the typical symptoms of un-insulated flooring, and underfloor insulation batts should be in your sights. The effects can be noticed in summer time also – the air-con's on full, the indoor thermometer shows chilly 22 degrees… but the floor still feels warm? A great thing about under floor insulation for timber floors is that it instantly addresses these issues. From day one, you will notice that the floorboards temperature now corresponds closely to the room air-temperature. When you heat up the room, the floor warms up also. When the room is cooled down, the floor temperature follows. In winter time this can mean the difference between one and three pairs of socks!

Long Term Benefits of Underfloor Insulation

Whether you opt for polyester rolls strapped to the side of the underfloor joists, or glasswool batts slotted up in-between the joists and secured with a few rows of tape or strapping – you can be sure that the benefits of underfloor insulation are long term. Aside from the obvious increase in comfort, thermal underfloor insulation is also proven to deliver significant energy savings, in particular in the warmest and coldest months of the year, where you will now be able to operate your indoor air-con and heating appliances on a lower setting, with the same result. It isn’t always easy to estimate the exact energy savings upfront in dollar terms, but a 10% reduction in energy use from the under floor insulation alone, is most likely a conservative estimate. In winter time, you can expect the savings to be significantly higher. Floor insulation is also an effective solution for warmer and drier Australian homes.

How to Insulate Under Floorboards

Polyester Rolls

The polyester rolls are pulled tightly between the joists to remove air-gaps and then stapled in place. Of all the floor insulation types, polyester is among the most pleasant to work with.

Glasswool Underfloor Insulation Batts

Glasswool floor insulation batts are lightweight and easy to handle in confined spaces, a perfect insulation for under floorboards. This photo shows how glasswool floor batts are strapped in place using polyweave strapping.

Extruded Polystyrene (XPS)

Polystyrene (XPS) insulation panels are laid before the concrete foundation is poured. These underfloor insulation foam boards are suitable for residential and commercial buildings.

Installing Floor Insulation – Safety First

When undertaking any job on a building site, the first thing to consider is safety. While installing floor insulation may not seem like the most dangerous of tasks, it does come with its own set of hazards.

The area beneath the house may often contain leftover rubbish from when the house was built, discarded bricks, protruding nails, pipes and broken glass. Experienced floor insulation installers know that spiders and even snakes are also a real possibility. If there is plenty of space to stand, the risks are greatly reduced. However, if underfloor access is very low, you may find yourself crawling or even lying on your back in order to install your insulation, and extra care needs to be taken to avoid injury.

Use a torch, headlamp or otherwise light up the area you will be working in; this will help you to avoid any potential hazards before you come in contact with them. Take care during the installation process and don’t rush when moving around. Safety glasses are strongly recommended to avoid dust and debris from falling down into your eyes.

Cheap Underfloor Insulation At Pricewise Insulation

Buy cheap underfloor insulation at Pricewise Insulation and choose from a range of floor insulation products available in multiple brands! For your convenience we deliver in Melbourne, Sydney and most other cities and regional centres in Australia. The underfloor is just one of the three main areas of your home which should be insulated this includes ceilings, and walls – in particular external walls. Select from a range of thermal and acoustic insulations and ensure the required R-value is installed for your construction type and climate zone. If you are not sure how much you need, feel free to give us a call on 1300 729 639.

Floor Insulation for Concrete Slabs

Installing concrete slab insulation can add extra comfort and warmth to your home and allow you to save on energy usage and bills. Up to 25% of a building’s heat loss, occurs as it escapes through uninsulated areas below ground such as foundations and concrete slabs. As insulation below-grade is often exposed to moist soil, it is necessary to choose insulation that is water and moisture resistant and able to dry quickly. As ground level temperatures fluctuate in most populated parts of Australia, slab insulation can sustain stable slab temperatures and reduces heat loss to the ground and minimize heat gain from the ground.