The experts at Dahlsens can recommend and supply a huge range of high quality thermal and acoustic insulation products at competitive prices. Improve the energy efficiency and comfort of your new build or renovation project with Dahlsens insulation supplies.

Our ceiling batt and insulation suppliers

Dahlsens partners with Australia’s leading insulation suppliers such as CSR Bradford, Kingspan Thermakraft, GI Sciences, Foilboard, Fletchers, Pro Clima®, Foamex, Slabmate and Ametalia.

Types of insulation Dahlsens supplies

  • Wall and ceiling batts
  • Builders wrap, reflective wrap and vapour permeable membrane wrap
  • Sarking
  • Underfloor insulation
  • Rigid insulation
  • Reflective Foil Insulation Panels

Wall, ceiling and underfloor batts

CSR Bradford Gold

Dahlsens can provide builders with high quality ceiling and wall insulation supplies from trusted manufacturer, CSR Bradford. Low allergen and made from up to 80% recycled glass, Bradford Gold insulation provides enhanced comfort for homeowners. With a 70 year performance warranty, Bradford Gold batts can reduce heating and cooling energy costs by up to 20%.

Standard CSR Bradford Gold Batts

Keep your clients’ homes warmer in winter and cooler in summer with Bradford Gold ceiling batts available in R-Values ranging from 2.5 to 4.1 and thicknesses from 140 to 215mm. Bradford Gold is also available in wall batts with R-Values from 2.0 – 2.2.

CSR Bradford Gold hi-performance range

For builders seeking an R-Value from 5.0 to 7.0, Dahlsens offers Bradford Gold Hi-Performance insulation supplies. The Gold Hi-Performance range is available in thicknesses from 240 to 290mm with R-Values from 2.0 – 4.0.

CSR Bradford Optimo underfloor insulation batts

Protect your clients’ home from draughts and help to retain indoor heat with Optimo underfoot insulation from CSR. Benefits of underfloor insulation include:

  • Easy to fit and install to new or existing homes
  • Traps heat indoors, resulting in reduced heating and cooling costs
  • Reduces reverberation in suspended timber flooring

CSR Bradford SoundScreen acoustic insulation

Your customer’s home is their sanctuary. Protect their peace with Dahlsens supplied SoundScreen acoustic insulation. Acoustic insulation significantly reduces unwanted noise by filling cavities present in internal walls with high density mineral wool.

Suitable for both residential and commercial insulation applications, SoundScreen products are also approved by the National Asthma Council’s ‘Sensitive Choice’ program.

CSR Bradford Polymax Wall Batts

If you’re looking for polyester insulation which is versatile, easy to install and delivers on performance, look no further than Bradford Polymax premium polyester insulation.

CSR Bradford Fireseal

The Bradford Fireseal range is made from non-combustible Rockwool, an insulation material specially formulated to provide fire protection. It is manufactured by spinning a molten mixture of natural rock and recycled blast furnace waste products into fibres which are bonded with a thermosetting resin.

The Bradford Fireseal range includes products that meet fire regulations for specific applications, such as:

  • Party walls
  • Curtain walls
  • BAL – 12.5 to BAL – 40 and BAL – FZ rated

Insulation blankets

Kingspan AIR-CELL

Kingspan AIR-CELL is a versatile range of fibre-free flexible reflective insulation for roofs, walls and floors. The reflective foil reflects up to 97% of radiant heat away from its surface. The small amount of heat absorbed is then further reduced by the conductional resistance of the polymer air cell structure, keeping you cool in summer and warm in winter. Kingspan AIR-CELL‘s resistance to all forms of heat flow translates into energy cost savings of up to 50% for the building occupier and reduced greenhouse gas emissions for the environment.

Bradford Anticon

Bradford Anticon combines two very effective forms of insulation into a single product to provide these benefits.

The reflective foil acts as a barrier, which reduces the radiant heat entering the roof space by up to 97% and also controls condensation, while the insulation blanket absorbs outside noise and dramatically slows the transfer of heat into and out of a home.

CSR Polyair Insulation

Bradford Polyair™ is a range of thermo reflective insulation products that reduce radiant heat gain in roofs and walls. The products can be used in a range of residential and shed applications.

Multitel BAL 12.5-40 Blanket

Bradford Multitel™ BAL 12.5-40 is used to seal off areas from potential ember ingress in bushfire prone areas.

Bradford Multitel™ is manufactured from an engineered glasswool insulation blanket. The blanket is manufactured by spinning molten glass, containing up to 80% recycled content, into fine wool like fibres.

These are bonded together using a thermosetting resin. The product can be identified by its golden appearance.

Builders wraps, membranes and air barriers

Whatever the building membrane you require for your next build, Dahlsens has a solution. Our team are here to support you with a range of options including Class 4 vapour permeable building wrap, reflective wrap, breather wrap and air barriers.

Kingspan Thermakraft

Kingspan Thermakraft is a range of vapour-permeable wraps that protect buildings, and help in condensation management. The range includes synthetic roof underlay and wall wraps which are fire retardant*, water resistant and vapour permeable. Kingspan also offer custom-printed wraps of Kingspan Thermakraft Watergate Plus. You can get your logo printed on the wrap easily and quickly, providing a great way to advertise your business.

*Kingspan Thermakraft Watergate Plus

Pro Clima® Solitex Extasana and Solitex Extasana Adhero®

Pro Clima® are the building envelope experts. Their weather resistant and airtight systems create healthy, durable and energy efficient buildings.

Solitex Extasana® Wall Weather Resistive Barrier

Solitex Extasana® wall underlay provides weather protection layer for your walls, under all conditions. It protects the building from wind, driving rain, and other external sources of water, whilst allowing any internal moisture to escape through the vapour permeable, non-porous TEEE* layer.

  • 180-day UV resistance & long-term durability
  • Highly vapour permeable (Class 4)
  • Weathertight & airtight weather resistive barrier (WRB)
  • Next generation non-porous monolithic technology

Solitex Extasana Adhero® Self-Adhesive Weather Resistive Barrier

Solitex Extasana Adhero® provides the ultimate weather protection layer for your walls and roofs under all conditions. Fully adhered to rigid substrates, Solitex Extasana Adhero® provides ultimate protection to the building from wind, driving rain and other external sources of water, whilst allowing any internal moisture to escape through the vapour permeable, non-porous TEEE layer.

  • Fully self-adhered membrane
  • Superior UV resistance (180 days exposure)
  • Isolates any leaks caused by penetrations or accidental damage
  • Outstanding long-term durability
  • Ideal solution for pre-fab systems

Pro Clima® INTELLO® PLUS and INTELLO® conneX Air Barriers

Pro Clima® are the building envelope experts. Their weather resistant and airtight systems create healthy, durable and energy efficient buildings.

INTELLO® PLUS Intelligent Air Barrier

INTELLO® PLUS is a market leading intelligent air barrier for all construction types, providing superior energy and moisture control. INTELLO® PLUS maximises the performance of your thermal insulation, whilst restricting internal moisture entering the building envelope. INTELLO® PLUS is reinforced for strength and durability, utilising HydrosafeTM technology. This intelligent air barrier provides optimal protection against structural damage and mould, even in the event of unexpected moisture intrusion.

  • Promotes superior drying capacity with HydrosafeTM technology
  • Intelligent airtightness system (IAS) for warm, dry, healthy buildings
  • Maximises the performance of thermal insulation
  • Highly diffusion-resistant in winter
  • Superior back-diffusion capacity in summer

INTELLO®conneX Connection Strip for INTELLO® IAB System

INTELLO® conneX is a specially formulated UV-stabilised humidity-variable strip. It is the missing link for your Intelligent Air Barrier (IAB) system. INTELLO® conneX is designed to ensure the continuity of the INTELLO® and INTELLO® PLUS Intelligent Air Barrier (IAB) systems at difficult junctions. Intended for use at intermediate floor junctions and internal to external wall junctions. It’s strong and durable allowing up to 90 days of UV exposure prior to being covered by internal linings or external cladding. With humidity-variable functionality and UV stability of up to 90 days, INTELLO® conneX enables the IAB system to perform for the life of the building.

  • Promotes superior drying capacity with Hydrosafe® technology
  • UV exposure stability of up to 90 days on both sides of the membrane
  • Highly diffusion-resistant in winter climate
  • Superior back-diffusion capacity in summer
  • Available in multiple widths for differing applications

Roof sarking

Acting as a protective second skin under your roof, roof sarking provides benefits such as:

  • Protecting against mould and ceiling damage caused by roof leaks
  • Limiting the amount of dust that can enter a home

Roof sarking is available in a range of insulation types with additional capabilities such as improving a homes thermal performance or providing a secondary form of ember protection for BAL regions ranging from 12.5 to 40.

Roof sarking regulations

According to the Building Code of Australia (BCA), it is mandatory to sark all tiled, residential roofs with a rafter length over 6 metres. This regulation applies regardless of roof pitch. The BCA has other requirements relating to how a building is protected from external moisture, so it is considered best practice in the building industry to sark all tiled and metal roofs during the initial build.

Ask Dahlsens about our competitive pricing for roof sarking installation services. Roof sarking is installed under tiles and helps to minimise water damage caused from weather events such as wind-driven rain.

Ametalin Logo

Trade Select Sarking HVB

Trade Select™ Sarking HVB is designed for use where water barrier and Class 1 Vapour Barrier properties are required for use as a roof sarking and wall wrap in residential and commercial buildings in BCA climate zone 1 and regions north of the Tropic of Capricorn in Climate Zone 2.

  • Extra Heavy Duty
  • Class 1 Vapour Barrier
  • Air and Water Barrier
  • Superior strength, puncture resistant
  • Low Flammability, suitable for all BALs in bushfire-prone areas
  • Can also be used for tile and metal roofs


SOLITEX MENTO® PLUS provides superior weather and condensation protection for your roof, under all weather conditions. With a medium duty classification (AS/NZS 4200.1), it is suitable to be used in tile, metal and slate roof applications*. SOLITEX MENTO® PLUS protects your roof and building envelope from the elements during construction, whilst allowing any internal moisture to escape through the vapour permeable, non-porous TEEE† layer.

  • Excellent UV resistance (180 days exposure)
  • Highly vapour permeable (Class 4)
  • Long-term durability and strength
  • Weathertight & airtight weather resistive barrier (WRB)
  • Helps protect building from condensation

Rigid Insulation

Kingspan Kooltherm

Kingspan Kooltherm is an extensive range of rigid thermoset phenolic insulation for roofs, wall and floors. Easy to handle and install, it is the thinnest commonly used insulation board for any specific R-value. This means that you can benefit from reduced heating or cooling demand or use thinner boards to gain more space in your building. Kingspan rigid boards are becoming increasingly popular in residential buildings, helping to achieve a 7 Star energy efficiency rating and providing a more comfortable environment by minimising thermal bridging.

Kingspan GreenGuard

Kingspan GreenGuard is a fibre-free, extruded polystyrene rigid board suitable as slab edge insulation in residential projects.

Foamex Logo

Expol Underfloor Insulation

Expol Underfloor Insulation by Foamex is easily fitted to new and existing homes, including pole houses with suspended floors. Expol will ensure your client’s home is protected year-round from extreme temperatures.

Manufactured using the highest quality, Australian made expanded polystyrene, Expol features flame retardant properties and contains no CFC’s. Designed to fit snugly between timber floor joists, with concertina cuts on both sides of the panel that allow for compression of up to 20mm.

Foamex Logo


StyroTherm is a proven insulation product, ideal for slab edge and under slab insulation.

Manufactured in Australia from Styroboard XPS – the highest quality extruded polystyrene – StyroTherm is a highly compressive and durable product. Versatile and easy to install in any weather, StyroTherm extruded polystyrene sheets can be used to deliver a robust slab edge insulation system, helping prevent thermal bridging around the perimeter of a home, as well as under residential or commercial concrete slabs to provide additional insulation benefits. StyroTherm sheets are suitable for use in moist environments with no loss in thermal resistance, and they will retain their dimensional stability.

Foamex Logo


Ideal for insulating walls, floors and garage doors, StyroSheet is manufactured in Australia from the industry leading Styroboard EPS expanded polystyrene.

As an insulation material, StyroSheet can be used for both external and internal insulation requirements across commercial and residential building applications. Suitable for use on steel stud, timber stud, concrete and masonry structures, StyroSheet provides an efficient and economical insulation solution.

Foamex Logo


StyroPod is an engineered waffle pod void former system for concrete slabs.

Designed specifically for use in residential building applications, StyroPod waffle pods provide under slab insulation and support, working in unison with natural soil movements, and lowering the amount of concrete required for a build. With the StyroPod system, construction is quicker and more cost effective compared to traditional concrete pours. A higher level of insulation is achieved through the natural air pockets in the expanded polystyrene and the moulded cells within the waffle pod design. StyroPod waffle pods can be used with any bracket and steel reinforcing mesh systems.

Insulation, supplied and installed

No time or team members to install insulation? Dahlsens can arrange insulation supplied and installed on your next project. Speak with your local Dahlsens team to access this service in Melbourne and Sydney.

Step 1

Request a quote

Step 2

Order your supplies

Step 3

Confirm your installation date

Step 4

Sign off on completed works

What R rating should ceiling installation be?

There are a range of insulation R rating requirements depending on the climate zone the project is being built in.

Insulation warranties

Here at Dahlsens, we only partner with suppliers who provide high quality products and exceptional after sales support. In the unlikely event that there is an issue with your product, we are your single point of contact for all warranty enquiries. Simply contact us with your concern and Dahlsens will coordinate a resolution with the supplier on your behalf.

Want to learn more? Get in touch today