Skip to main content

Underfloor Insulation for New Zealand Homes

Blown Floor Insulation
For high thermal & Acoustic performance

Introducing a better way to insulate Floors

Warmafloor Insulation Logo

Warmafloor blown floor insulation is the ideal solution for insulating the floors and mid floors of new and existing homes. Because of its versatility, Installers can work efficiently because blown-in insulation fills spaces around joists, wires, pipes and irregular-shaped cavities creating a complete thermal and acoustic barrier for the floors and mid-floors of your house.

Insulation can be blown at different densities, which means Warmafloor is the perfect solution for applications where you’re looking for high-performance insulation combined with a wind-wash barrier at an affordable installed price.

Warmafloor has been installed since 2002 and is tested to NZS4859 standards. Because it is blown into place, it fills the space between the joists without cutting or tearing to fit, even in a tight sub-floor space.

What matters in underfloor insulation

  • Easy to install
  • Resistant to moisture
  • Held securely in place
  • A proven track record
  • Meets H1 requirements
  • Installed in line with NZS4246
Warmafloor Underfloor insulation

Underfloor Insulation

Perfect for insulating the wooden floors of existing homes

Warmafloor provides a superior solution by combining high-performance blown insulation with a wind-wash barrier, significantly improving thermal efficiency, delivering year-round comfort.

Warmafloor Loft Ceiling Insulation

Mid Floor Insulation

The perfect acoustic and thermal solution for floors and mid-floors in multi-story homes
Warmafloor Insulation is ideal for adding thermal and acoustic insulation to midfloors without the need to remove the internal linings.
Warmafloor New Build Floor Insulation

New
Builds

High performance floor insulation for new builds
Warmafloor is part of the Trufill Insulation system for new builds and is easily installed. It is CodeMark certified and available through Masterspec, ensuring compliance and quality.

See how Warmafloor blown insulation is used in underfloor, mid-floor and new build applications to create warmer, quieter, and more energy-efficient homes.

Try our Floor Insulation Calculator

Calculate the cost to insulate your floors with high performance blown insulation.

Blown Floor Insulation Cost Calculator

Enter the total floor area of your home in square metres to calculate an estimated cost for blown floor insulation.

This estimate assumes product installed at a 140mm depth at a 19kg density, delivering an installed R-Value of R3.6.

Warmafloor Benefits

Warmafloor Insulation is an unbonded, Glasswool insulation designed with optimal thermal properties and excellent coverage as well as blowing characteristics. Moreover, Warmafloor can be installed into both new build and existing floors as well as midfloors.

It can be used to form the total thermal solution or as an additional thermal layer to existing insulation. Warmafloor can only be installed by approved installers to ensure the highest quality and installed performance.

Our Insulation can be used for both retrofit and new build applications. The product is specifically designed to fill all gaps and voids, thereby creating a complete thermal barrier against heat loss or gain. The product can be installed in most floors and midfloors.

Additionally, the product also has excellent acoustic performance and is made with up to 80% recycled post-consumer glass.

Warmafloor Insulation is capable of achieving very high installed R-Values. This makes it the perfect insulation product for ensuring compliance with the new H1 insulation standards. Click here to view further technical information on Warmafloor.

High Thermal Performance

Blown insulation makes it simple to achieve high thermal performance.

Reduces
Noise Transfer

Warmafloor Insulation helps absorb sound waves and reduces noise transfer in the home.

Fast Installation

Warmafloor is fast and easy to install by accredited installers and available nationwide.

Good for the environment

Warmafloor is manufactured from up to to 80 percent recycled glass content.

Why Choose Warmafloor

The question is more why wouldn’t you choose Warmafloor?

Warmafloor Blown Insulation is ideal for both retrofit and new build applications. Not only does Warmafloor Insulation provide consistent thermal performance against outdoor temperatures, but it also helps maintain comfortable indoor temperatures. In addition, it can be installed at high densities alongside a windwash barrier to further enhance thermal performance and achieve high R-Values year-round. It’s made with recycled glass and can be quickly and efficiently installed into most homes.

Learn more about Warmafloor Insulation by clicking the link below.

Warmafloor Healthier Homes

Healthier Homes

Warmafloor helps create warm, dry homes. On top of this it is completly safe and poses no health risks to your family.
High Performance

High Performance

Warmafloor insulation, combined with a wind-wash barrier, delivers higher thermal performance exactly where it’s needed
Warmafloor 50 Year Durability

50 Year Durability

You can depend on Warmafloor Insulation. It’s a robust and durable product that will last the life of your building.
Warmafloor Energy Savings

Energy Savings

Insulating with Warmafloor Insulation will make your house more energy efficient making it easier to heat and cool your home.
Warmafloor Insulation Logo

Request a Quote 

Interested in a quote for your property? Fill out the form and one of our team members will be in touch shortly.

Your Details

How can we help?

How we use your details. Safe-R Insulation (NZ) Limited collects these details so we can answer your enquiry and pass it to the Safe-R network installer for your region, who is a separate company and who will contact you to quote and do the work. Giving us your details is voluntary, but we cannot respond or arrange a quote without them. You can ask us for a copy of what we hold about you and ask us to correct it. Our Privacy Policy explains all of this, including how we use cookies and advertising tags.

Underfloor Insulation for Wooden and Timber Floors

Cutaway showing Warmafloor insulation installed between the joists beneath a warm timber floor

Most New Zealand homes built before the 1990s sit on a timber floor over an open sub floor space. The floorboards are usually the only thing between your living room and cold air and moisture under your home, and timber floors are not an effective thermal barrier. This is why wooden floors feel so cold in the winter, regardless of how long the heater has been running for. It's also why so much of a home's heat loss happens straight through the floor.

Warmafloor is blown in underneath the floorboards, between the floor joists, and held up against the underside of the floor with a special membrane barrier called a BIB. Because it is blown rather than cut and fitted, it fills the full width of every joist bay and packs in around pipes, wiring and the irregular framing you find under an older house. Warmafloor provides a complete and effective thermal barrier to the underside of your home.

It also prevents air and moisture moving up through the gaps between floorboards, which is often the first thing people notice in any home with polished timber floors.

Underfloor insulation options for a timber floor

Until recently, insulating an existing wooden floor meant fitting a segment or blanket product up between the joists and holding it there. This was often paired with the installation of a vapour barrier pinned to the ground. Those products work, but they have to be cut around every pipe and cable, and the joints and gaps left behind are exactly where heat loss occurs.

Blown insulation is a loose glasswool material, held in place with a membrane that replaces the need for a ground vapour barrier. The nature of blown insulation means that when it's installed, it takes the shape of the cavity instead of you having to make the cavity take the shape of the product. This provides an effective and consistent thermal barrier across the entire floor.

Unlike other forms of insulation, it can also be installed at different densities, which is how Warmafloor reaches higher installed R-values under a timber floor than most other insulation products.

Insulating an existing wooden floor

Warmafloor Insulation can be easily installed in both existing timber floors and new builds by authorised Safe-R installers. If you want to know what it costs to insulate the floors in your own home, put your floor area into the calculator above and you will have an estimate in a few seconds.

For A
Green
Future

Warmafloor Insulation is made with up to 80% post-consumer recycled glass!

We are committed to sustainable manufacturing – and that’s why Warmafloor Insulation is made from recycled glass. In doing so, our products save energy and cut emissions, while also being designed to make sure buildings are good for the environment and keep people healthy, safe, and well.

FAQ

Is Warmafloor Insulation completely safe for the family?

Warmafloor is made from up to 80% recycled glass as well as inert materials that are non-combustible and therefore can help inhibit the spread of fire. The most critical factor for safe, long-term performance is a correct installation system. Warmafloor is a proven performer since 2002.

Warmafloor Insulation is extremely durable and has a life expectancy of over 50 years!

Why should you insulate your floors with Warmafloor?

Quite simply, floor insulation works to keep the outside temperature out and the inside temperature in! In other words, think of it like a chilly bin or vacuum flask — if you put hot food in, it stays warm, and if you put cold food in, it stays cold. Since heating and cooling account for 50 to 70% of the energy used in the average home, it’s easy to see why insulation matters. Without it, inadequate insulation and air leakage waste a significant amount of energy in most homes.

Correctly designed & fitted insulation:

1. Saves money and our nation’s limited energy resources
2. Makes your house more comfortable by helping to maintain a uniform temperature
3. Keeps your house drier and healthier.

On the other hand, poorly insulated homes often feel cold and damp in bedrooms and service areas, leaving occupants crowded around a single heater to stay warm. By contrast, homes insulated with the full proven Warmafloor system use similar amounts of energy to keep the entire house at a healthy, comfortable temperature. Therefore, that’s why the Warmafloor insulation system is a smart investment for your home.

If you’d like to know more about Warmafloor floor insulation give our friendly customer service team a call on 0800 267 992 or send us a message!

What makes Warmafloor different from other floor insulation products?

Until recently, the only way to retrofit insulation to your floors was to use a segment or batt product. However, these products typically have lower thermal resistance values, and the installation process can often leave gaps or voids when fitting around pipework or cables.

By contrast, Warmafloor Insulation is a blown insulation product. It’s installed under the floorboards or within your mid-floors, in between the floor joists, using a specialised installation process that ensures consistent coverage.

Blown insulation can be installed at different densities so is the perfect insulation where you’re looking for a high performance thermal and acoustic insulation product. The installation process is quick and easy, and the product fills up all the gaps and voids typically left by other products.

How good is Warmafloor Insulation?

Warmafloor is a premium insulation product, and one of the best insulation products available allowing you to keep the outside temperature out, and the inside temperature in!

In addition, the total installed thermal floor insulation effectiveness of Warmafloor is superior to batting or blanket insulation, because it fills the entire floor cavity without joints, gaps, thermal bridging, or vented cavities that are commonly found between linings and traditional materials. As a result, it provides premier insulation values.

By comparison, batting insulation or blanket materials require at least two layers to achieve the same installed thermal effectiveness as Warmafloor insulation.

So why wait? Talk to us today about installing Warmafloor insulation in your floor or midfloor.

How much will it cost?
Use our insulation calculator to get an estimate of how much it would cost to improve the comfort of your home.

Still Have Some Questions?

If you still have some questions about Warmafloor Insulation or would like to have a chat to one of our customer service representatives feel free to give us a call.

Looking for your local installers?

Our Other Products

CosyWall Insulation Background Logo

Learn more about CosyWall Insulation

Trufill Logo

Learn more about Trufill Insulation