Sustainable slab Insulation - Cupolex

Insulating your home is an essential step of the building process to ensure you live in a warm, dry house that meets the New Zealand building standards. The first step of home insulation starts with the concrete slab. Polystyrene blocks are often the first go-to product to meet these needs, but little thought is put into the environmental impacts that they have. These blocks use a considerable amount of waste in both the manufacturing and building processes. And in addition to waste, they are also a hazard to the environment. When not disposed of correctly, the offcuts are slow to degrade, they can leach into the ground and get into our waterways, harming wildlife and causing many years of damage.

For these reasons, Rangitahi has recently banned the use of polystyrene blocks in foundations. We encourage the use of sustainable and eco-friendly materials whenever possible. Another alternative to polystyrene blocks is Cupolex. Cupolex is a recycled insulation system made in New Zealand that exceeds the NZ building standards and is a zero-waste product. We caught up with Malcolm Cottle, the national accounts & operations manager of Cupolex to tell us more about this great product.

Can you give us a quick overview of Cupolex, what is it used for, and the benefits?

‍Cupolex is essentially a sacrificial permanent formwork that is used for residential and commercial foundations. Invented in 1995 in Italy, Cupolex utilises the strength created from the arch combined with the concrete and reinforcing to create a honeycomb effect for your foundation. The advantage of this approach is not only the strength but also because the foundation is all connected, it makes for a naturally warmer floor. Globally they have been building structures like bridges and cathedrals using this technology for thousands of years and still to this day, many of them remain. It also means that there is no cutting of product to suit the foundation layout. Which makes it extremely efficient to construct with zero-waste eliminating the need for a skip bin at the very beginning of your new build.

‍

Rangitahi backs this product as an alternative for polystyrene bocks. Can you tell us why Cupolex is a better alternative?

Cupolex is manufactured using 100% recycled plastic created from waste in NZ. This means that not only are we able to reduce landfill, but also create a product that can be recycled at the end of the building's life. Cupolex as previously mentioned, requires no cutting of its components, as opposed to polystyrene, where you need to cut it to fit. This creates a very problematic situation as the small beads then become airborne or blow along the ground and settle into nearby environments like waterways, farmland and reserves. The animals, fish and birds that live in these environments then mistakenly see the beads as food and ingest it, which is not good news for them!Cupolex is compactly packed onto pallets (52m2 per pallet) this not only reduces transport costs but also minimises site traffic for existing residents in the community and cuts down on the carbon footprint from delivery vehicles.

Rangitahi focuses on sustainability and creating energy-efficient housing. How does Cupolex help with these initiatives?

‍To create insulation you need to trap air in an enclosed space. Because of the "void" that is formed from the Cupolex, which traps air beneath the concrete slab and the DPM (damp proof membrane), the foundation maintains a consistent mass within the remaining envelope of the building to heat or cool. As manufacturers continue to use plastics for packaging, electronics, toys and fixings and fittings, to name just a few, there will always be a waste product. We take this manufacturer's and consumer's waste and create the Cupolex product that can also be recycled at the end of life.

‍

New building codes are coming in from October. Does Cupolex meet the new government's requirements for insulation?

‍Yes we do. Cupolex has had independent testing carried out in New Zealand to determine that we meet the new H1 regulations for the NZ Building code, and we exceed them. How long has Cupolex been around for in NZ, and is it widely used? Cupolex has been available in NZ since 1995. However, the full product range that is now available in NZ only started being manufactured here in 2017 by the current owner. Cupolex is widely used throughout NZ, with projects ranging from Schools, gyms, chicken farming sheds, early child care centres, lifestyle villages, as well as the work that we do with both individual and group home builders.

‍

‍How would someone find out more about Cupolex and consider it for their build?

‍We can be contacted via:
Website: www.cupolex.co.nz
‍Phone: 0800 CUPOLEX 2876539
Email: enquriy@cupolex.co.nz

Keep Reading

Back to all posts

Building Your Dream Home with Hoult Construction: A Guide to Getting Started

Building a home is an exciting journey, and partnering with a trusted local builder like Hoult Construction makes all the difference. With their expert knowledge of the Raglan area and commitment to high-quality craftsmanship, they guide you every step of the way, from initial design to the final touches.

Art and Architecture Unite in West Village: A Unique Collaboration

West Village, the final chapter in Stage 1 of the Rangitahi Peninsula development, presents a rare opportunity to own a home which blends luxury living with artistic inspiration.

Why not live where others come to holiday?

Embrace the relaxed lifestyle which we live and breathe here in Raglan. The ideal place for young families, parents with kids who have left home, or anyone looking to live a slower pace and take in the beautiful natural surroundings of our piece of paradise, here on the west coast of New Zealand's North Island.

Commercial Office Tenancies Available

Have you been dreaming up a plan for your business? We are looking for inspired, self-motivated entrepreneurs who are keen to approach us with ideas for our commercial spaces.

Enhancing Your Home with Raglan Curtain Tracks and Blinds

Rangitahi is not just a place to build a house; it's a community where creativity and craftsmanship come together to create beautiful, functional homes. One of the local businesses contributing to this transformation is Raglan Curtain Tracks and Blinds. We sat down with owner Lucie to learn more about her journey, her expertise, and the factors to consider for window dressings in New Zealand homes.

Sheltered Outdoor Living for this Young Family

If you have visited Rangitahi you will know that the outlook changes as you move around the peninsula. Tom and Carmel’s home faces east, bringing beautiful sunrises over the estuary...

Designing a Family Home with Rubix Architecture

We recently chatted with Alice Gironella from Rubix Architecture and her clients about one of the latest houses she has designed at Rangitahi.

Making It Work

Meet Sophia, the owner of So Floral. Creator of earthy, unique and creative floral pieces. We love the supportive, creative community of Raglan and we are always interested in meeting people who are making their businesses and lifestyles work to suit our small-town living.

All Settled In

We have revisited the Boer family to hear all about their home and lifestyle now that they are well and truly settled into their beautiful house with water views, in Stage One: The Village.

Ideal family location

"Our kids get to live their best life going door to door gathering their mates for adventures in the nearby reserves - this place is truly special."

Join our team

Do you love the Rangitahi Project? We are looking for a passionate creative to join our team.

Who knew paint could be this good?

Made from plant oils, tree resins and earthen clay, our paint is beautifully made from Mother Nature herself. Invite colour into your home and watch inspiration bloom with Natural Paint Co.

What to do in Raglan this summer?

While you are in Raglan this summer, here are some 'sandy bucket-list' items for you to tick off.

Tony Sly on living the 'country to city' lifestyle

"The Waikato expressway now means we can be door to door in 1 hour 45 mins! That compares favourably with catching the ferry to Waiheke or driving north to Matakana and is less congested."

Beauty by the coast, three local businesses to look out for

Reason #287 for moving to Raglan. Meet these latest additions to the Raglan wellness scene.

Front yard gardening and maintenance

Planting and landscaping on Rangitahi, here are some helpful pointers and visual reference. Along with our Rangitahi Design Guidelines.

Spring cleaning tips

Spring cleaning tips and resources for a successful start into your Raglan summer

Rangitahi Farmers Market

The Rangitahi Farmers Market season is about to start! Join us on Saturday, Dec 16th for the first market of the season. Shop local Raglan produce, fresh flowers and artisan products while enjoying breakfast on the peninsula.

Why this young couple, Jack and Paige made the move from Auckland to the quieter pace of life in Raglan

When we first started looking at moving to Raglan, buying into a new urban sustainable neighbourhood really appealed to us and we like that the Rangitahi developers are encouraging interesting buildings that steer away from the ‘norm’ to fit with Raglan’s ideal.

The Weston House

"Raglan quickly became a place that felt like somewhere we could call home". The couple behind, Weston Builders have allowed us a peek into their own home here on Rangitahi. The look? A mix that might be described as Scandinavian design intertwining with contemporary farmhouse aesthetics.

North Point Residences is Best Design Awards finalist

We are proud to see this incredible Red Architecture design being recognised by the Designers Institute of New Zealand, Best Design Awards. Just another Rangitahi gem!

Meet Fuegos, the perfect wood fire bbq for the new grilling season

Up-level your outdoor entertaining area! Wood fire bbq made with high-quality materials such as thick steel plates, stainless steel grills and cast iron cooking surfaces. These materials are known for their durability and ability to withstand high temperatures, making them perfect for outdoor grilling.

Things to consider before choosing your outdoor fireplace

We've compiled a little list of things to consider when choosing an outdoor fireplace...

Building Sustainably

We prioritise high-performing products, including non-toxic, breathable linings, plasters and paints, thermally treated timber cladding & exothermic sheep wool insulation. Our windows and doors use thermally broken aluminium and argon gas glazing, which exceeds the new H1 standards. - Dylan, Back to Nature Carpentry

Moving Houses | And why it is worth considering

While there is a romanticism about watching your house being built on site, there is an undeniable advantage to building off-site in a dry workspace and away from weather impact! Explore transportable homes on Rangitahi, Raglan.

Work remotely from Raglan

Thanks to the improved motorway, we can now be in Auckland CBD in just two hours, which is perfect for a part-time commute or - weekend staycation on the west coast for those wanting to stay in the city during the week. Live in Raglan and work from home.

Generational living

Here at Rangitahi, we are committed to providing our community with a place that encourages and fosters self-sufficiency and sustainability. This includes looking at alternative ways of living and building with the next generations in mind.

Come stay a while at Sisters Sanctuary

There are several small and full-family home Airbnb's on the Rangitahi Peninsula, spoiled for choice, you simply need to decide between water views or rolling hills.

The Rangitahi Affordable Housing Project

Inspired by Nightingale Housing in Melbourne, we wanted to provide an opportunity for five Raglan families to purchase their first home at cost price. The project is covenanted to protect the lower purchase price and provide benefits to families over a longer period of time. This is one response to the current housing challenges here in Raglan.

Pro Tips with Calla Landscapes

We sat down with Jordan from Calla Landscapes to talk all things, plants and planning for a successful outdoor retreat area. Made for living not trimming.

Rangitahi, a family heaven

"The relaxed way of life here in Raglan quickly made me fall for this place, and now I can't imagine having my girls growing up elsewhere!" - Anne Paar

Why Solar?

Pre-wire your home to hide the conduit and ensure everything is seamlessly installed. So it’s ready to generate and store solar energy from the day you move in.

Coolhouse | A compact and efficient design

They didn’t want to start designing from scratch but knew they wanted to work with a registered Architect, be able to modify where necessary and have a home with quality specifications. Being very busy people, they liked that there was a straightforward process to follow.

Lot #505 Living by the Reserve

You can pull your kayak or paddle-board into the harbour and explore the waterways at any time of the year. And come summer, it will make an excellent high tide swimming spot for the whole family to enjoy.

The Landing, stage 5 is now selling

Just add your Kayak and you are set with one of these incredible waterfront sections on Raglan's Rangitahi peninsula. Come and be part of New Zealand's most unique lifestyle development.

3 Tips to stay on track with your design and building process

Photographer and mother to four, Mel Vink is sharing 3 design tips to stay on track with the building process of their dream family home here on Rangitahi, Raglan. How she brings the Bali / Byron vibe to New Zealand and local companies she sourced in the process.

What do the Rangitahi street names mean?

A strong connection to the land and earth has been a key value for the family since day one of bringing the Rangitahi project to life. Here are two ways that are currently supporting this vision and intention. One being the Rangitahi street names and the other is our protected and researched archeological sites within the Rangitahi peninsula in Raglan - Whaingaroa.

Meet the Locals - Coaster Coffee

The Hut here in Rangitahi is always being asked about their delicious locally roasted coffee - Coaster Coffee. So we thought it was about time that we found out more about Malcolm, who is the one-man band behind Coaster Coffee.

Raglan based bespoke kitchens & living design

Sustainably crafted furniture and holistic living design, all in a one-stop-shop experience can be found right here in Raglan NZ. Meet the German cabinet maker and designer couple behind Motide.

Modern Mediterranean in Rangitahi Peninsula

Casa del Sol is one of the most unique homes in Rangitahi would have to be the modern Mediterranean home in The Village precinct just after you enter the Rangitahi community.

Hay Property wins gold in house of the year awards

Local builders Hay Property recently won a regional gold award at the Master Builders house of the year awards for this stunning home, designed by Red Architecture.

Raglan Artisan Goods

Buying locally in Raglan couldn't be any easier with the number of delicious artisan products that are available.

Top 5 flooring trends for your new home in 2023

When designing the interior of your new home, flooring is sometimes the last thing you think about, whereas you should start designing from the ground up. Choosing the right flooring for your home...

Raglan Pool Manufacturers - Poolsmart

Did you know that Raglan has our very own innovative pool manufacturing business that creates fully self-contained pools? All you need is a concrete pad, and they can drop it into place, fill it up with water, and it's good to go.

The benefits of solar power for your new build

Here in Rangitahi, we love homes that put sustainability at the forefront of their design, and one of the best ways to do your part in reducing your energy consumption is to install solar power into your new build by our local pros at Stendy Electrical.

Live the kiwi dream with a coastal section in Raglan

Over the last few years, many of us have realised we can work from anywhere without being tied down to a major city – and this realisation has opened the door to endless possibilities for seeking out a simpler, more relaxed lifestyle...

Walking Tracks at Rangitahi

A favourite activity for many of the Rangitahi residents and visitors is to use the coastal walking tracks that circumnavigate the peninsula and crisscross into the residential areas, connecting the different precincts of the development together.

Ben & Jordie's new home in Rangitahi

We caught up with Ben and Jordie, who recently completed their new home in Rangitahi. Ben, an architectural designer for Urban Homes, was born and bred in Hamilton.

West Village, A new way of living in Rangitahi Peninsula

Designed by Red Architecture, inspired by its natural surroundings and colour palette, the West Village is an absolute gem greeting you as you drive over the bridge. Featuring a mixed use of boutique commercial spaces and lifestyle appartments here on the Rangitahi peninsula in Raglan.

Raglan Arts Weekend this Labour Day

With the Raglan Arts Weekend happening this Labour weekend, there is no better time to visit! A showcase of all the hidden artis studios in Raglan, grab a friend and come out west for a stroll around.

The Sanctuary is now complete!

The Sanctuary is the fourth stage of Rangitahi and is located on the western side of the Peninsula, providing beautiful views of the Raglan harbour, Mount Karioi and the golf course.

How to minimise new build budget risks

When entering the design phase of your new build, work with the architect to ensure you have included all of your must-haves at the beginning; any last-minute changes or product alterations can be costly and instantly blow the budget.

Designer Feature Series: Nixon Homes

Nixon Homes is a family-owned building company run by brothers Mike and Cameron Holmes, co-founded in 2018. Having grown up in Hamilton, the brothers spent a lot of time in Raglan and loving the coastal lifestyle.

Weed Identification

When working on the grounds around your home and walking around the peninsula, keep your eye out for some of the nasty weeds that are common in our area.

Rangitahi Café plans are underway

We are excited to share some of the first glimpses of the Rangitahi Café plans with you!

Retire to Raglan

There comes a time to start thinking about downsizing a larger family home and buying somewhere smaller that suits a quieter pace of life. Here is why we think Rangitahi, Raglan is one of the top places to retire in New Zealand.

A Rangitahi Residents Feature in Homestyle Magazine

We were thrilled to see that a recently completed home in The Rangitahi Village was featured in the Homestyle Magazine. Rangitahi has several outstanding home designs not to be overlooked.

New Beginnings from Afar

From Australia to Raglan and it went like this...

A new sand pit for the local school

Recently Rangitahi had the privilege of sponsoring a project at the local school, Raglan Area School.

Predator free Rangitahi

Rangitahi has a vision of protecting the ecological values of the land by undertaking extensive native regenerative planting and by being predator-free to help the wildlife flourish and increase the ecological connection between Karioi,

Wainui Construction

When you're moving around Rangitahi, you will undoubtedly see a Wainui Construction vehicle or signage in the area; they are a busy team closely connected to the Rangitahi project through their construction company and environmental business.

The Landing - Sales update May 22

In The Landing you will find your dream coastal section. In close proximity to all living essentials as well as all the fun! Come and explore the Rangitahi peninsula.

Meet the Locals: Crafted Concrete

There is nothing better than adding your personal touch to your home, and having a one-of-a-kind bespoke piece to create the exact look your after is a great way to add your flair to what could be an ordinary area.

Interior Design for your new build

Building a new home is an exciting journey, and along with creating a great exterior look comes the interior. For some this is a joyful experience, for others, it can be quite daunting.

Sustainable slab Insulation - Cupolex

Insulating your home is an essential step of the building process to ensure you live in a warm, dry house that meets the New Zealand building standards. ‍Cupolex is manufactured using 100% recycled plastic created from waste in NZ.

Rangitahi Build Update

A summary of the latest buildings going up. Beautiful coastal designs that blend in with nature

Regenerative Planting

When looking at New Zealand landscapes, you can often spot a lot of non-native growth, some of which is out of control and hinders New Zealand native plantings from growing and reproducing in their own natural habitat.

5 Raglan outdoor activities to do in Autumn

Raglan is well known for its natural beauty, with long stretches of black sand beaches to discover, stunning views looking out over the surfing points to take in, endless ocean activities and thriving flora and fauna..

Sales update + new section release coming soon!

The Peninsula is really beginning to take shape with so many great-looking homes starting to pop up and fill in the community. We are getting so many comments on how modern and stylish the Rangitahi is, with many people wanting to be a part of the Rangitahi crew. We have a few lingering sections from The Sanctuary remaining that are still up for grabs and only seven coastal sections left in the latest release at The Plateau.

New Release - The Landing

The Landing is the fifth stage of Rangitahi and will have 64 sections in total. The landing is nicely tucked away in a secluded basin with northeast views over the water and towards farmland.

Design Feature Series: White Wood Homes

As you drive through the peninsula, you may notice quite a few White Wood Homes signs, with five projects confirmed in Rangitahi - these local legends are making their mark with beautifully crafted homes for generations to enjoy.

Preparing for Lending

There has been a lot of talk in the media about tightening lending restrictions and higher interest rates, making things more difficult for buyers.

Abodo Cladding - A sustainable choice

Timber Cladding is timeless and a favourite material for many kiwis builds. There are various timbers that are on offer to provide different aesthetics. Meet Abodo...

Prime waterfront section available in the Sanctuary

Rangitahi is located near the Raglan township and is one of the most unique developments in New Zealand with a focus on building a sustainable neighbourhood and protecting the native flora and fauna.

Summertime in Raglan

Rangitahi is close to the Raglan town centre, so put on your walking shoes or grab some wheels and head into the unique township to enjoy the goodness of the local community.

Outdoor Heating Solutions

One way of expanding the use of your patio, deck or alfresco area is to install outdoor heating so you can extend the usability of this space throughout the different seasons.

The Rangitahi Peninsula – A Beautiful Neighbourhood

The Plateau is closely connected to the water’s edge and other stages via our open space network of walking tracks and footpaths.

Building a New Future

We teamed up with Xtreme Zero Waste who produced a handy guide for any businesses in the construction industry, and homeowners to help reduce their construction waste.

Rangitahi Build Update

Some of the latest new builds going up on Rangithai.

New Release of Sections: Register your Interest!

Our latest section news

Raglan - Things to do this Spring + Summer!

Spring is finally here in Raglan and the sun has been shining, people are back out in the surf, swimming in the low tide pools, and enjoying the daily coastal lifestyle.

Designer Feature Series: Andrea Velasquez of Signature Homes

We had a chat with Andrea Velasquez, an architectural designer for design and build company Signature Homes based here in the Waikato. Andrea lives locally and has a really good sense of the Raglan coastal vibe and we can see that reflected in her designs.

Design Guideline Series: Fence Design + Inspiration

There are certain requirements that each property needs to achieve with regards to fencing at Rangitahi.

Small + Architectural: Our top 5 picks in New Zealand

Small homes can be designed and built onsite but many of them are transportable or prefabricated and trucked or shipped into place. The prefabricated versions are often constructed much quicker and arrive ready to be connected to the land.

Rangitahi Designer Series: Huis Design

We recently chatted to Mount Maunganui based design duo Marcus Bonk and Diego Marangoni of Huis Design studio about their holistic approach to architecture and how they have enjoyed designing for the Rangitahi Peninsula.

Rangitahi update: A Growing Community

The Sanctuary is closely connected to walking tracks on the harbour’s edge linking to the Rangitahi village where there will be a cafe, and a Saturday morning farmers market!

Design Guidelines Series: Designing for the Contour

There is very little flat land in Raglan or on the Rangitahi Peninsula. Accordingly an important principle in the design and layout of the houses is that they should describe and support the topography, not fight against it.

Meet Sam, Soph, Margot and Frank

Meet Sam and his family who are in charge of the sales and marketing on Rangitahi.

New Release: Ruruhi Lane

Ruruhi Lane is located on the eastern most point of the Rangitahi Peninsula. With beautiful harbour views, rural views of Maungatawhiri and of course the established native bush on the peninsula these sections are not to be missed.

Meet the Locals: Westcoast Stoneware

We recently met with Beach from Westcoast Stoneware here in Raglan to chat about some of the new things they have been working on. Its awesome to see a new business start in Raglan and grow at such a rapid rate!

Design Guideline Series: The art of the entranceway

There is an art to creating a successful entranceway to a home. We have gathered some ideas to create an entrance, that is friendly..

Women in Architecture

Although the architecture and construction industries are typically male dominated, women contribute significantly to our built environment with many female designers and architects are making waves in the industry in NZ and abroad.

The Design Review Process: What's Involved?

The Rangitahi Design Guidelines control the architectural and development quality, including the landscape design for all lots on the peninsula. The advice and ideas as a result of this process are really valuable and contribute to developing each lot successfully.

Design Guideline Series: Cladding Sets the Tone

Cladding sets the tone for your house as well as protecting it from the elements. We’ve rounded up the top options to consider before you dive in.

What's on your coffee table?

What’s currently on your coffee table and why is that important in your home? Your coffee table generally takes pride of place in the heart of your living room

The 5 best indoor plants to have in your home

Mini trees for your home, low-maintenance succulents or a trail of heart shaped leaves, take your pick with our top 5 best indoor plants and how to keep them alive!

Explore the Rangitahi lifestyle

With 14km of walking tracks planned around the peninsula, you'll be taken from the bush to the sea just footsteps from your home. The perfect addition Raglan walkways

Rangitahi Designer series: Architecture Bureau

We believe the key to making any house a home is meeting the needs of the home’s occupants as people are at the heart of any design, no matter what the building type or function.

Rangitahi Designer Series: Kirstie Hunter of Sentinel Homes

We recently chatted to Kirstie Hunter of Sentinel Homes. Kirstie is a design consultant who works closely with her clients to create their dream design. We thought we'd get to know her a bit better and hear about some of the designs we'll be seeing on Rangitahi.

Get inspired to create a functional and stylish outdoor living space this summer!

Make your home your happy place this summer with beautiful outdoor living spaces! If spending time outdoors is high on your agenda for the coming months or you are planning for your new home build.