High-Performance Underfloor Insulation for Timber Floors
Expol’s foam underfloor insulation is easy to install, making it ideal for DIY enthusiasts. Lightweight yet tough and rigid, it won’t sag over time as many other products do. Backed by a 50-year product guarantee, it will ensure your floors remain well-insulated for decades to come, giving you lasting peace of mind.
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Expol Insulation Products
Expol Black R1.8 – 410MM
Black Expol polystyrene underfloor insulation is infused with graphite, which makes it 30% more thermally efficient than Expol White. It is also flame retardant, vermin resistant and helps reduce noise from timber floors. Designed to be used in extreme environments, it is an excellent choice for enhancing energy efficiency and comfort in your home. The current size is made to fit 410mm joists and it is available to buy online in Victoria and South Australia only.
Expol White R1.4 - 410MM, 470MM & 560MM
White Expol floor insulation is perfect for existing timber floors and new floors. Available in an EPS polystyrene sheet form, it is specifically created to be placed between the joists beneath a suspended timber floor to improve the overall insulation rating of your home. Rigid polystyrene is flame resistant, doesn’t attract rodents, and will help reduce noise. It is available in three joist widths (410mm, 470mm, 560mm) to suit a variety of residential settings.
Why Choose Expol Underfloor Insulation Boards?
Sustainability
98% of EXPOL insulation product is actually trapped air. As well as ensuring excellent thermal insulation properties this means the amount of EPS material required is minimal.
Promoting Healthy, Energy Efficient Homes
EXPOL insulation products are designed to create warm, dry, healthy environments with reduced heating requirements.
Committed to Industry Best Practice
EXPOL is a long-standing member of the leading industry association, Asian Manufacturers of Expanded Polystyrene (AMEPS).
State-of-the-art Production Equipment
All EXPOL products are tested and meet industry standards and EXPOL underfloor insulation products are appraised by BRANZ.
Expol Underfloor Insulation Accessories
Floor Insulation FAQS
What Are the Benefits of Underfloor Insulation Foam?
Foam underfloor insulation stops heat from escaping through new gaps and cracks, which ensures consistent indoor home temperatures. They are highly durable and come with a 50-year warranty, so they won’t need to be replaced for years to come. They are also moisture and water-resistant, pest-resistant, fire-retardant, and non-allergenic.
What Does the R-Value of Under Timber Floor Insulation Mean?
An R-value is a measurement given to insulations’ thermal resistance or the flow of heat transfer. As R values increase, the rate at which heat flows decreases or slows down, thereby increasing the insulation’s effectiveness. This means, the higher the R-value, the higher the thermal performance and energy savings.
Can You Retrofit Underfloor Insulation in an Existing Home?
Yes, you can put underfloor insulation under existing floorboards. Retrofitting involves adding insulation to the underside of your floors without significantly modifying the structure. This upgrade can significantly improve your home’s energy efficiency, reduce heating and cooling costs, and make your living spaces more comfortable year-round.
Is Expol DIY Underfloor Insulation?
Our panels are DIY-friendly, as they are lightweight and easy to handle. They are straightforward to install, requiring only basic tools and an accessible subfloor. However, if your subfloor is difficult to access or you’re unsure about installation, it’s always best to consult a professional to ensure the job is done safely and effectively.
