Wall Insulation - External Walls

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R2.0-R4.0
Knauf Insulation

Knauf Earthwool Sound Shield Insulation Batts

75-140 mm | Glasswool
4.91 (11)
  • Available from R2 to R3.1 to suit different climates
  • Softer to handle than standard glasswool, thanks to the ECOSE bio-based binder
from$9.33/m²
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R0.26-R1.3
Foilboard

Foilboard Green Rigid Insulation Panels

10-50 mm | Foil / Reflective
5.0 (13)
  • Wall options from R0.26 to R1.3 to match your comfort target
  • Combined thermal break, vapour barrier and reflective insulation in one
from$11.09/m²
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Bestseller
James Hardie

James HardieFire Rockwool Insulation

85 mm | Rockwool
  • Non-combustible mineral wool that will not add fuel to a fire
  • Strong acoustic performance that cuts noise transfer
from$46.92/m²
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R2.0-R2.7
Bradford

Bradford Gold Batts Hi-Performance Wall Insulation

75-90 mm | Glasswool
  • Wall options from R2 to R2.7 to match your comfort target
  • Australian made, to Australian standards
from$9.21/m²
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R1.05-R4.3

MetecnoTherm PIR Insulated Board

25-100 mm | PIR
  • R1.05 to R4.30 in thicknesses from 25mm to 100mm
  • Group 2 material to AS 5637.1, Australian made
from$28.84/m²
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Pricewise Insulation DIY Install Kits

Glasswool
  • Makes cutting and fitting faster and cleaner
  • Matched accessory for a complete, airtight install
from$35.00/kit
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Ametalin

Trade Select QuickTape - Brane VHP Joining Tape

Foil / Reflective
  • Weathertight air barrier that still lets the structure breathe, controlling moisture and draughts
  • Intelligent vapour control that protects the build-up from condensation
from$32.42/roll
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Ametalin

Trade Select Insulation Tape

Foil / Reflective
  • Intelligent vapour control that protects the build-up from condensation
  • Seals joins and laps to stop air and vapour leaks
from$15.55/roll
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Ametalin

Trade Select Reinforced Silver Foil Tape

Foil / Reflective
  • Seals joins and laps to stop air and vapour leaks
  • Matched accessory for a complete, airtight install
from$28.55/roll
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Bradford

Bradford High Tack Tape

  • Australian made, to Australian standards
  • Seals joins and laps to stop air and vapour leaks
from$69.00/roll
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Bestseller
Bradford

Bradford Enviroseal Aero (RW)

  • Weathertight air barrier that still lets the structure breathe, controlling moisture and draughts
  • Australian made, to Australian standards
from$2.96/m²
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Ametalin

Trade Select by Ametalin XR Vapour Permeable Wall Wrap

Foil / Reflective
  • Weathertight air barrier that still lets the structure breathe, controlling moisture and draughts
  • Intelligent vapour control that protects the build-up from condensation
from$2.85/m²
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Ametalin

Trade Select by Ametalin Brane VHP Vapour Permeable Wall Wrap

Foil / Reflective
  • Weathertight air barrier that still lets the structure breathe, controlling moisture and draughts
  • Intelligent vapour control that protects the build-up from condensation
from$1.92/m²
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Ametalin

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
from$11.27/m²
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Ametalin

Trade Select by Ametalin ThermalBrane 4 Foil Insulation

Foil / Reflective
  • Combined thermal break, vapour barrier and reflective insulation in one
  • Designed for wall insulation
$12.65/m²
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R2.0
Bradford

Bradford Polymax Wall Insulation Batts

90 mm | Polyester
5.0 (1)
  • Wall options from R1.5 to R2 to match your comfort target
  • Australian made, to Australian standards
from$21.81/m²
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Kingspan

Kingspan Air-Cell Insuliner Insulation

Foil / Reflective
  • Australian made, from Melbourne
  • Combined thermal break, vapour barrier and reflective insulation in one
from$12.74/m²
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R1.1-R1.75
Kingspan

Kingspan Kooltherm K8 Cavity Board

25-40 mm | Phenolic
5.0 (1)
  • Australian made, from Melbourne
  • Matched accessory for a complete, airtight install
from$50.50/m²
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Kingspan

Kingspan Air-Cell Insulbreak 90 Insulation

9 mm | Foil / Reflective
  • Combined thermal break, vapour barrier and reflective insulation in one
  • Australian made, from Melbourne
from$18.97/m²
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Kingspan

Kingspan Air-Cell Insulshed 50 Shed Insulation

Foil / Reflective
  • Australian made, from Melbourne
  • Combined thermal break, vapour barrier and reflective insulation in one
from$10.72/m²
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Kingspan

Kingspan Air-Cell Permishield XV 70 Insulation

Foil / Reflective
  • Weathertight air barrier that still lets the structure breathe, controlling moisture and draughts
  • Australian made, from Melbourne
from$17.83/m²
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Kingspan

Kingspan Air-Cell Permicav XV Insulation

Foil / Reflective
  • Combined thermal break, vapour barrier and reflective insulation in one
  • Australian made, from Melbourne
from$14.07/m²
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Kingspan

Kingspan Air-Cell Insulbreak 70 Insulation

Foil / Reflective
  • Combined thermal break, vapour barrier and reflective insulation in one
  • Australian made, from Melbourne
from$13.17/m²
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R2.0-R3.1
Fletcher Insulation

Pink Soundbreak Insulation Batts

70-110 mm | Glasswool
  • Wall options from R2 to R3.1 to match your comfort target
  • Australian made, from up to 80% recycled glass
from$14.40/m²
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Fletcher Insulation

Fletcher Pink Partition Acoustic Wall Insulation

50-100 mm | Glasswool
  • Strong acoustic performance that cuts noise transfer
  • Australian made, from up to 80% recycled glass
from$5.90/m²
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Bestseller
R2.0-R3.1
Bradford

Bradford SoundScreen Acoustic Insulation Batts

70-110 mm | Glasswool
5.0 (1)
  • Wall options from R2 to R3.1 to match your comfort target
  • Australian made, to Australian standards
from$15.63/m²
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R2.0-R2.5
Fletcher Insulation

Pink Batts Glasswool Wall Insulation

70-90 mm | Glasswool
  • Wall options from R1.5 to R2.5 to match your comfort target
  • Australian made, from up to 80% recycled glass
from$5.89/m²
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Bestseller
R2.0
Bradford

Bradford Gold Batts Wall Insulation

90 mm | Glasswool
  • R2 wall rating that lifts everyday thermal and acoustic comfort
  • Australian made, to Australian standards
from$6.41/m²
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External wall insulation creates a thermal barrier between your indoor living spaces and the outdoor environment. This means you can regulate your indoor temperature more effectively, keeping it warmer in winter and cooler in summer. The perfect time to install external wall insulation is during building or renovation. Shop our extensive range of external wall insulation today to enhance the long-term comfort and health of your home.


Why Install External Wall Insulation?

External wall insulation dramatically increases your home’s energy efficiency. Not only does it reduce the load on your heating and cooling systems by regulating your indoor temperatures, but it also helps reduce your energy bills long-term. Good external insulation also supports a healthier home by limiting moisture buildup and condensation issues.

Types of External Wall Insulation

There’s no one-size-fits-all when it comes to insulating your external walls. The right product for you will depend on the unique needs of your home. Whether you need premium thermal performance for extreme temperatures, acoustic control for enhanced privacy, moisture protection to keep your home healthy, or a combination of all three, you can choose the right external wall insulation materials for your needs.

Thermal Exterior Wall Insulation

Thermal exterior wall insulation materials are designed to reduce heat transfer through your walls. It's ideal for maintaining consistent indoor temperatures and improving the overall energy efficiency of your home. You can find a wide range of thermal insulation materials for your needs.

Acoustic Exterior Wall Insulation

Acoustic insulation is a practical choice for anyone wanting a quieter, more peaceful indoor environment. If noise is a concern where you live, whether it's from noisy neighbours or traffic, this insulation adds an extra buffer from the outside world. You can find a range of acoustic insulation options for your home.

Wall Wrap Exterior Insulation

Wall wraps help protect your home from the elements. Reflective wraps like Aircell or products from the Ametalin range can help manage radiant heat by reflecting it away from the structure. Breathable wall wraps such as the Wall Wrap and the Pro Clima range offer excellent weatherproofing and air barrier properties and should always be used in combination with insulation materials for maximum thermal performance.

Rigid Board Insulation

Rigid boards offer high thermal resistance in compact form. They offer long-term durability and excellent thermal performance.

How to Install External Wall Insulation

External wall insulation installation is best done before the plasterboard goes in. DIY installation is possible for straightforward projects, but for more complex homes, professional installation is the best way to ensure correct installation and optimum results. If you’re going to DIY:

  • Measure and cut the insulation.
  • Clean and prepare the wall surface.
  • Install wall wrap or a moisture barrier.
  • Fit insulation snugly with no gaps.
  • Seal insulation and check that it is airtight and secure.

External Wall Insulation Products for Your Home

We offer an extensive range of high-performance products for external wall insulation, including thermal, acoustic, and rigid boards.

Pro Clima

These breathable, reflective barriers sit behind wall cladding to protect your home. Pro Clima offers a range of industry-leading breathable membranes designed to enhance air-tightness, moisture control, and protect your home from dust.

Foilboard Wall Insulation

Offering exceptional thermal resistance, Foilboard insulation panels are a favourite for external walls and garages. Compact, durable, efficient, and easy to install, Foilboard wall insulation will help create a high-performance external wall system.

Why Choose External Wall Insulation from Pricewise Insulation?

With trusted brands, competitive pricing, and fast delivery, Pricewise has built a solid reputation for insulation excellence. Whether you’re looking to increase energy efficiency, reduce intrusive noise, or simply create a more comfortable indoor space, our extensive range of high-quality products and practical advice will help you find the right external wall insulation materials for your project.

Frequently Asked Questions About External Wall Insulation

External wall insulation is installed by fixing insulation boards to the outside of your home, then applying a weather-proof render or cladding. While it is possible to DIY, it’s often best left to professional installers to make sure insulation is properly sealed for performance, moisture control, and durability.

When professionally installed and well maintained, external wall insulation can last anywhere between 25 and 40 years. The exact lifespan depends on the type of insulation it is, the local climate, and how well the surface is protected from the elements.

Yes, external wall insulation significantly enhances a home’s thermal performance and energy efficiency. This can lead to lower energy bills, improved indoor comfort year-round, and better noise control.

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