Accoya Color® awarded Cradle to Cradle certification at the prestigious ‘Gold’ level


Accoya Color® has been awarded Cradle to Cradle certification at the prestigious ‘Gold’ level, as well as being awarded ‘Platinum’ level (the highest level) for both ‘Material Health’ and ‘Water Stewardship’.

This certification demonstrates that Accoya Color (alongside the Accoya parent brand) is a product that adheres to very high standards of sustainability, alongside the recognized high performance and durability credentials of the brand.

Accoya Color product scorecard for each level:

Products are reassessed by the C2C Products Innovation Institute every two years, and Accoya Color has now been successfully certified until May 2024. Visit here for more information on the Cradle to Cradle Products Innovation Institute.


What is the Most Sustainable Decking Material?

We’re exploring the critical issue of what is the most sustainable decking material on the market. This topic is now front and center for everyone when they choose their building materials and we’ll talk about the most sustainable decking timber choice of all, the natural Accoya® Color wood.


Everyone loves the look and feel of a real wooden deck on their property.

Let’s face it, when talking real estate, nothing beats a beautiful outdoor deck in your yard. A professionally installed and properly maintained wooden deck can add real emotional and financial value to your property. The same is true of the wooden decks that are found in corporate settings, where ‘biophilic designs’ bring nature into our working lives, improving our wellbeing and (it’s claimed) our productivity.

Learn more about biophilic designs.

Once upon a time…

Decks throughout the US come in many forms, backyard, front porch, docks leading down to the river and so on. Redwood, Cedar and Ipe have been the traditional woods used in deck construction for hundreds of years. But, the first two require periodic treatment to seal and protect against moisture and of course the use of Ipe is now frowned upon due to potential illegal logging practices.  Until recently, there was little thought given as to what we now call the ‘provenance’ or source of the timber and also the long-term sustainability of this precious decking material.

The devastation of deforestation

Without getting too pessimistic, it’s worth noting that the clearing of tropical rainforests is still happening at an alarming rate, despite the best endeavors of governments around the world. The Food and Agriculture Organization of the UN estimates that the world has lost a billion acres of forest since 1990, mostly in Africa and South America. The Amazon Conservation group reports that destruction rose by 21 percent in 2020.  Much of this unregulated illegal activity may find its way into the back yards of innocent consumers.

Read more here on deforestation.

So, what is the most sustainable timber for decking?

So, what is the most sustainable timber for decking?

Thankfully, we live in different and more enlightened times and these days virtually all construction materials come under the eco-spotlight from regulators, architects, installers and of course domestic dwellers who pay the bills.  Talking of consumers, it’s people like you who are taking the lead in interrogating the eco-credentials of building materials (especially when thinking of selling your property in the future).  Sustainable decking material is the way to go.

We’re discounting wood-plastic composite decking materials here because, as their name implies, they contain plastic elements and so our focus is on real wood. Many of the hardwoods that have been used in decking for so long take decades to grow slowly in tropical climes (sometimes eighty or ninety years) and it’s very difficult for them to be replaced; when they are cut down there is a huge corresponding loss in biodiversity in the forest around them. Most, if not all softwoods are not suitable on their own as they’re not durable enough, they require treatment to prevent premature rot and decay.

Ideally, consumers and timber installers in the US need a beautiful, natural timber that grows very fast and quickly in managed sustainable plantations. This needs to be an eco-friendly timber with impeccable credentials that is both legal and ethical. Oh, and it helps if it comes with a 25-year warranty against rot and decay, even in water, and is grey-colored all the way through to the core!

Accoya Color to the rescue

Accoya Color to the rescue

Accoya Color is ideal for timber decking projects in the US. Unlike slow-grown hardwoods it is sourced from sustainably sourced softwood that is FSC® certified with 100% proof of provenance. This natural softwood is then modified using our famous patented acetylation process that results in Accoya wood – in this decking product it is also now colored a beautiful grey through to the core…Accoya® Color. To achieve this, after acetylation, the newly modified timber goes through an extra dyeing process in a purpose-built facility using organic non-toxic color pigment.

Important elements for wooden decking are the durability of the material and the degree of maintenance required after installation, most of which involve chemical treatments of some kind or other. Accoya Color is just like its traditional Accoya stablemate in that it’s very low maintenance. There is no need for additional coatings (although it coats very well) and its grey color anticipates the natural silvering of wood when exposed to weathering over the years.

As Accoya Color comes with a warranty against rot and decay, even when installed in ground (a unique feature), it results in an eco-friendly timber that lasts for decades and consequently locks away carbon too. These wooden decks are 100% recyclable too after their decking life, further increasing their sustainable street-cred.

Accoya Color is available to buy in the US from a range of our official lumberyard partners that can be found on the link below.

Where to Buy

You can buy Accoya and Accoya products from our selection of distributors or manufacturers in your region. Use our map search tool to find your nearest Accoya supplier.

Find a supplier

Predictions for Sustainable Building in 2022

What will characterize our sustainable cities of the future?


In 2020, at 149 exajoules (or 149 quintillion joules), energy consumption for the construction and operation of buildings totaled 36 percent of global energy demand. Down from a peak of 150 exajoules in 2019, it is likely that pandemic lockdowns played a part in this reduction. Now, at a time when the world seems to have stood still for so long, we are beginning to allow ourselves to look forward and ponder on the shape of our future, and the general consensus is that this will begin with growth. As economies emerge from the pandemic, most believe that construction output will return to pre-COVID levels over the next year, and we have an opportunity to ensure that growth is sustainable. Below are our four key predictions for how this might look.

Sustainable Building Materials

Sustainable Building Materials

Actively guiding the construction industry towards a more sustainable path will not only ensure compliance with tightening green regulations, but improve brand image in an era where sustainability is king. A key consideration is reduction of waste and a more carefully considered stance on the materials we are using. Given that 11% of the energy and process-related carbon dioxide emissions from the buildings and construction sector in 2018 stemmed from manufacturing materials such as steel, cement, and glass, it makes sense to consider a move towards an altogether more eco-friendly choice: wood.

An inherent part of the natural environment, bringing sustainably sourced wood into our built environment champions nature and its fundamental biodegradability, allowing us to balance the need to provide for a growing population with the need to ensure the climate resilience of its future. In fact, the global green building materials market size is expected to have reached USD 364.6 billion by 2022. Of course, in this we must also step away from treating these materials with toxic paints and finishes, ensuring that they are truly biodegradable, and can safely be returned to nature at the end of their life.

Lifelong Wellbeing

Lifelong Wellbeing

Considering the return of wood to nature leads us on to the next key prediction, lifelong wellbeing. We must now be mindful of the entire lifecycle of the materials and building process and, beyond this, the health and wellbeing of those that work on and live in the buildings we erect. The World Green Building Council’s Six Principles for a Healthy, Sustainable Built Environment underlines the importance of the relationship between sustainable development and human wellbeing, detailing how harmony with nature and climate change action is linked to social values, including the health of construction workers.  Buildings made of wood have seen not only construction time, effort, and waste reduced by as much as 90%, but have had a positive impact on construction workers, whose exposure to the dust and toxic fumes of a regular building site is drastically lowered. Furthermore, wood buildings continue to have a positive impact on people throughout their lives as wood surfaces have been found to lower stress levels, improve attention and focus, and increase creativity. With the difficulty of the preceding two years, a movement towards design that benefits wellbeing is likely to be at the forefront of many minds.

Biophilic Design

Biophilic Design

Fundamental to development that centers itself upon wellbeing, is biophilic design. Biophilia, the human tendency to interact and be close to nature, is increasingly being integrated into architecture as we recognize the health benefits that come from a connectedness with the natural world. In fact, in the World Green Building Council’s principles mentioned above, biophilic design is a key tenet of ‘Harmony with Nature’. Not only can we achieve this through the use of wood, which is seen to bring a number of health benefits in itself, but through expanding this by bringing green in.

Net Zero Is Not Enough – Positive Is The New Neutral

Net Zero Is Not Enough – Positive Is The New Neutral

Our final prediction is that net zero emission targets will no longer cut the mustard. With several governments and large companies committing to net zero targets, reducing emissions is a global target. However, with increasing pressure from those who recognize this may no longer be enough, we believe there will be a push towards climate positivity: removing more greenhouses gases from the atmosphere than are released. In an industry that is responsible for a large portion of global emissions, we think companies have started to notice the scale of the positive impact we could have if we pushed for these more ambitious targets.

How Does Accoya Align With These Predictions?

How Does Accoya Align With These Predictions?

At Accoya, sustainability has always been at the heart of what we do. Our products are made out of FSC certified timber grown in well-managed forests that protect the surrounding natural biodiversity. Modified through a process of acetylation, which does nothing more than alter than existing natural compounds of the wood, it becomes more durable, stable, and better performing without the addition of a single toxic chemical. This ensures that not only is its life lengthened, but when this eventually comes to an end, the timber is completely biodegradable or recyclable. As if this wasn’t enough, by the end of their life Accoya timber windows and doors will have helped to remove CO2 from the atmosphere. That’s right, they’re climate positive. So, while sustainable materials, lifelong wellbeing, biophilic design, and climate positivity are set to be the four new sustainable building trends of 2022, we hope that by fulfilling every one of these, Accoya becomes the fifth.

12 Inspiring Examples of Grand Designs using Accoya sustainable wood

There is no better way to unite sustainability and architecture than through the use of Accoya® in your home. The following examples of sustainable homes achieve grandeur through both design and innovation across a variety of unforgiving climates. Have a look for yourself why Accoya was chosen for each and every single one, and inspire your own design.


Meadows Passive House

Meadows Passive House

The Meadows Haus in Park City, Utah, was designed and built to meet rigorous requirements set by the Passive House Institute (PHI). This voluntary building standard for energy efficiency minimises the ecological footprint of the building by reducing energy usage to ultra-low levels for both heating and cooling, and by maintaining particularly stable internal temperatures, regardless of climate.  

There is no superior cladding option for such tight constraints than sustainability-conscious and climate-resilient Accoya. This Utahan example of sustainable home architecture makes use of Shou Sugi Ban charred cladding to satisfy the needs of a family that was looking for a stylish, but inherently energy-efficient home. Designed by Klima Architecture, an ecosystem-informed firm whose projects are centred around energy-conscious designs and methods, this mountain residence is afforded not only sustainability, but beauty and grandeur also, by its Accoya cladding. 

Portsea Beach House

Portsea Beach House

If you’re looking for sustainable home architecture, Australia is not a bad place to start looking. This beautiful family beach house in Mornington Peninsula, Victoria, uses Accoya wood not only for its cladding, but for the decking, windows, and doors frames, too. The visual effect of this is a seamless example of indoor-outdoor living, that merges the house and the garden in an effortless show of simplicity, practicality, and elegance.  

Accoya naturally weathers to the silver-grey shade seen here, but the wood used on Portsea Beach House was coated with a bespoke stain to give the appearance of weathered Accoya from the off. Not only does this enhance the natural beauty of the materials, but their stability means that the coating will stay looking pristine for longer, extending the life of one of the most striking eco sustainable homes Australia has seen. 

Private Residence in Hamburg, Germany

Private Residence in Hamburg, Germany

Another building whose Passive House credentials mean it is likely one of the most sustainable homes for miles around is this private residence in Hamburg, Germany. The architects on the project specified Accoya for the 80 windows and 20 exterior doors to comply with the demanding requirements of the Passive House Institute. A distinct aesthetic to the projects seen above, these photos go to show how flawlessly Accoya can be integrated into a variety of design preferences, offering long-lasting splendour. 

With Accoya, swelling and shrinkage have found to be reduced by as much as 75%, meaning that there are no concerns over draughty gaps forming, or difficulties opening windows and doors, regardless of the time of year. Even more than this, the superior insulating power of this material reduces heat loss and, with it energy bills, meaning that residents can stay warm, comfortable, and content knowing that they are also saving money. 

Surfer’s Eco House

Surfer’s Eco House

You would be hard pressed to find many eco-friendly sustainable homes with a better view than this. Built for German professional surfer Flo Jung, he wanted an eco-home that would be resilient to the constant exposure to the sun and sea air of the South African coast. Built by Jung himself, he chose Accoya to fulfil these requirements, safe in the knowledge that he could return worry-free to his crack- and splinter-resistant decking from many a barefoot surfing outing. Accoya decking is guaranteed to last for 25 years, and timber siding above ground for 50, so this surfer’s paradise will continue contributing to the beauty and sustainability of this landscape for years to come. 

Casa Na Mata

Casa Na Mata

“Jungle House” overlooking São Paulo’s Guarujá Beach shows so beautifully how modern sustainable homes can be integrated with the natural environment by using Accoya. Our wood was used here not only for the decking and cladding, but also for some internal panelling and furniture, as well as for MUXARABI joineries. This unique joinery acts as a light filter, altering the projection of light into the building depending on the time of day, creating an ethereal beauty sympathetic to this house’s magical surroundings, mimicking the journey of sunlight through the jungle trees.  

It is unsurprising that Accoya was chosen here, as not only does its incredible durability place it perfectly to withstand the sea air and Brazil’s hot and humid climate, but its design flexibility means it is easily reconciled with both nature and a variety of architectural techniques.  

Passive House

Passive House

Grand designs are not only so because of their stature, but some through their integration of new technologies and conformation with cutting edge science. These two Passive Houses in Belgium are one such example of grandeur without the dimensions, proving that sustainable tiny homes are great in significance, if not in size. 

Accoya is used here for the windows and façade, offering enhanced insulation to fully satisfy the energy conservation requirements of the specification. Furthermore, recent carbon footprint research has shown that our windows are carbon negative over their full life cycle, contributing considerably to the fulfilment of Passive House standards and ensuring that these houses are significantly more environmentally friendly than those have uPVC, aluminium, or unsustainably sourced hardwood windows. 

Cabin by the Sea

Cabin by the Sea

When timber sustainable homes look like this, it’s not hard to see why they are becoming more and more popular. The entire exterior of this private residence in Sjursholmen in Søgne, Norway, is made using Accoya, including the façade, roof, outside deck, dock, and windows, and as Accoya wood is 100% non-toxic and contains no biocides or harmful chemicals, the owners can be sure that they are protecting the purity of the land and sea around them. The project’s architect underlined that Accoya’s stability and durability in the face of a tough Norwegian climate allowed him to indulge in “precise and sculptural expression” in the creation of the roof’s sharp edges. It is through Accoya that smart, sustainable homes are both striking and beautiful. 

New Zealand Residence

New Zealand Residence

Much like the Cabin by the Sea, this private residence is a striking example of how the outstanding durability and stability of Accoya can support exciting architecture. The large windows and doors here are raking in places and often meet at obtuse angles, build requirements made possible by the unique qualities of Accoya wood. Tested and trusted not to visibly swell, shrink, or distort, these eye-catching shapes will continue to be both remarkable and functional for lifetimes to come. 

Squirrel Hill Passive House

Squirrel Hill Passive House

The last of the Passives Houses on this list, this Accoya clad residence in Squirrel Hill, Pittsburgh is one to pin to the top of your self-sustaining home ideas board. When planning their ultra-energy efficient passive house, the physicist owners of this impressive abode were drawn not just to Accoya’s durability, but its long warranty and low carbon footprint. Indeed, Accoya comes from fast-growing sustainable forests, helping to reduce carbon emissions for a healthier planet, so these scientists can feel good not only about the stunning aesthetic of their home, but the sustainable foundations it is built upon. 

Luxurious Romanian Home

Luxurious Romanian Home

This ominous backdrop is a stark reminder of the drastic weather conditions Accoya can withstand. It performs so highly in these circumstances, in fact, that both the owner and architect of this property chose to use Accoya not only for the windows and terrace, as originally planned, but additionally for all applications throughout the home, including the façade, interior doors, indoor and outdoor furniture, terrace, garage door and railings. The result is a wonder in Accoya, a construction that persists through whatever Romania’s extreme climate can throw at it, meshing unparalleled structural integrity with sustainable natural beauty. 

Trulli of Alberobello

Trulli of Alberobello

Sustainable home ideas are all the sweeter when they are this beautiful. The Trulli of Alberobellopart of the UNESCO World Heritages sites, are dwellings found in the southern region of Puglia, Italy, made from limestone boulders collected from neighbouring fields. Their historic, distinctive shade is mimicked in the sympathetic use of Accoya in the pool decking of this private residence, made possible by the wide variety of finishes availableSee how the sun catches the boards, mirroring the subtle shades of the limestone, and emphasising the pure blue of the pool and sky. Grand designs don’t get much grander than sites of such historic importance, and with its sustainability credentials and long warranty there is no better choice than Accoya to compliment the longstanding heritage of this house’s surroundings. 

Lakeshore Drive Residence by Resawn Timber Co.

Lakeshore Drive Residence by Resawn Timber Co.

This lake house in Okoboji, Iowa was designed to preserve the existing mature trees in its grounds whilst illuminating expansive views of the lake from the road. The natural look of Accoya allowed for these views to be brought to life, as if they were painted on the side of the house itself, whilst blending effortlessly into the surrounding nature. The NIGIRI Shou Sugi Ban charred Accoya used here is designed and manufactured by reSAWN TIMBER co. and can be used for both interior and exterior wall cladding and, as each and every Accoya cladding panel is made from FSC® certified timber that’s fully sustainable, this house not only blends into the natural aesthetic of the area but also into the ethos of eco-living.  

Accoya Color® awarded Cradle to Cradle certification at the prestigious ‘Gold’ level


Accoya Color® has been awarded Cradle to Cradle certification at the prestigious ‘Gold’ level, as well as being awarded ‘Platinum’ level (the highest level) for both ‘Material Health’ and ‘Water Stewardship’.

This certification demonstrates that Accoya Color (alongside the Accoya parent brand) is a product that adheres to very high standards of sustainability, alongside the recognized high performance and durability credentials of the brand.

Accoya Color product scorecard for each level:

Products are reassessed by the C2C Products Innovation Institute every two years, and Accoya Color has now been successfully certified until May 2024. Visit here for more information on the Cradle to Cradle Products Innovation Institute.


Olympics is here – but which is the most sustainable sporting stadium?


Sustainable Sports Stadiums

The 2020 Olympics are now underway (in 2021), and sustainable buildings and stadiums are playing their own important roles in today’s world – superstars of a sustainable future! Forward-thinking design and building of these centres for human excellence is perhaps the ultimate way to raise awareness of the benefits and assets of future sustainable buildings, and the positive impacts they can bring not only to the environment but also to people.

Every four years usually sees more athletes performing as well as more people attending, and the contributing countries are feeling the pressure to build more sustainably: these are big investments as well as showcases of national policies and performance, and the buildings are almost as important as the sports being played – and last a lot longer than a 100m sprint! The need for more sustainable buildings is leading contractors to specify more sustainable options to promote sport in a sustainable environment. To fully understand why sustainable buildings and stadiums are so important, we need to look at the benefits and the reasoning behind them.

What are the benefits on building a sustainable stadium?

What are the benefits on building a sustainable stadium?

With the help of sustainable construction and the use of non-toxic materials, many future benefits are being realised. And here are just 5 of the great reasons why building sustainable stadiums promotes a healthier environment1:

  1. Water preservation: because a lot of water is needed in stadiums to water and prepare the real grass pitches, clean the venue or for sanitary reasons, water consumption in stadiums are very high. When considering how to reduce water consumption, green initiatives such as rainwater harvesting and recycling can be considered.
  2. Energy preservation: in order to reduce the use of energy, more and more stadiums are being made to conserve energy consumption, and even being equipped with solar and wind power to provide them with an alternative energy source.
  3. Low pollution: nowadays, more and more stadiums are built with healthier, more sustainably-sourced and recycled materials, such as wood, plastic and paper. With the help of using greener building materials that help fight global resource depletion, the amount of waste and pollution in the environment is reduced and the destructive impacts of construction are minimised.
  4. Financial benefits: by choosing greener and longer-lasting materials for stadiums, environmentally-friendly projects will be
    cheaper in the long run when the maintenance and operation of the buildings are taken into account. Moreover, the value of the project can actually increase over time, while the costs of water, energy, maintenance and insurance premiums can decrease.
  5. Reduced health risks to the community: using non-toxic materials can not only reduce health problems within the community, but also safety risks while stadia are constructed and in use for years after!

Sustainability in sports stadiums

So now that we are aware of the benefits of why it is important to focus on sustainable construction, let’s take a look at the current sport stadiums that have made it to the top of the list of most sustainable sports buildings in the world2.

Amsterdam ArenA, Netherlands

The ArenA, home to Ajax Football Club, is powered by more than 4,200 solar panels and even a wind turbine. The main facility of the Arena is equipped with an amazing energy-generating escalator, an energy storage system using recycled batteries and electric vehicles. And to complete the list, the stadium reuses rainwater by collecting it on the roof to water the pitch while reducing water consumption.

Mercedes-Benz Stadium, USA

By receiving platinum Leadership in Energy & Environmental Design (LEED) certification, a global standard for measuring the sustainability of buildings, the Mercedes-Benz professional sports stadium is one of the world’s most sustainable sports venues: it consumes 29% less energy, is equipped with LED lighting and there are around 4,000 solar panels on the roof as a contribution to a more sustainable environment. With its own storm water management system, the stadium can store up to 2 million gallons on site to prevent natural disasters and use 47% less water at the same time. Pedestrian-friendly paths allow supporters to reach the building safely and easily. The stadium even provides a bicycle valet program and electric vehicle charging.

Levi’s Stadium, USA

With not one but two LEED certifications, Levi’s Stadium is one of the most sustainable buildings in the city of San Francisco. The stadium has found a perfect way to highlight innovative sustainability elements by installing more than 1,000 solar elements, solar-powered pedestrian bridges, a solar-paneled terrace and a 27,000-square-metre roof. The stadium has implemented its own materials procurement programme, meeting strict sustainability criteria, and has been able to commit to local food sourcing. In 2018, the stadium promised to fight climate change, which was even recognised by the White House’s Science and Technology Policy Office.

Golden 1 Center, USA

By engaging fans in the message of climate action through their global sports platform and organising “sustainability nights”, the Golden 1 Center has put a lot of pressure on helping to build a more sustainable environment. With the use of 100% solar energy, a water conservation practice to reduce water consumption by 45% and recycling 99% of demolition materials, the stadium has certainly shown its effort to maintain a sustainable stadium. In 2017, the Golden 1 Center was even awarded the world’s greenest and most technologically advanced sports and entertainment facility, and according to Green Project Management, the stadium is among the top 3 percent of high-performance buildings worldwide.

Building a sustainable stadium

Building a sustainable stadium

So now you have been introduced to world’s leading sustainable sporting stadiums, the real question is: How can you contribute to making a sustainable stadium?

As we know, many of the commonly used building materials are made of non-renewable resources, such as PVC or aluminium, which are finite, depleting resources, and often come with heavy energy and emissions costs. Every day, more and more pollution is released and CO2 is added to the surface air. However, our world can also provide us with raw materials that offer a long-term solution to both of these impacts: this material is wood, from well-managed and sustainable forests.

By specifying Accoya wood, you are already one step closer to helping build a more sustainable stadium by selecting it as your material for decking, cladding, windows and doors – frames or any other application. Accoya wood is sourced from fast growing trees and sustainably certified forests and offers many benefits to application-oriented industries around the world! Its high performance, unrivalled durability and sustainable credentials make it the perfect solution; a truly unique combination of qualities.

Thanks to our unique acetylation process, Accoya wood is highly resistant to decay – meaning it lasts and stores carbon for decades, making it a perfect alternative not only to carbon-intensive and resource-depleting materials, but also to slower-growing and unsustainably sourced hardwoods.

Just think about it. Who wouldn’t want beautiful installations from a material that has a longer lifespan while simultaneously increasing global carbon storage and providing us with a climate-proof alternative to concrete, metal and plastic, all for the sake of a more sustainable environment?

And don’t forget; you are opting for a premium product with exceptional stability that can easily last twice as long and require less upkeep than other alternatives – so in the long run the running costs can be much cheaper too.

Accoya wood may not be competing in the Olympics, but it has it’s very own Gold: Cradle to Cradle Certified™ Gold to be precise, marking it as the top performer in the building materials industry.

To give you some inspiration and ideas, let’s look at a couple of the few sustainable projects where Accoya has contributed to a more sustainable world by helping to build a greener sports stadium!



The renovated Omnisport building in the Netherlands, which not only hosts world championships but also local competitions and is a practice track for many future cyclists, was named the world’s first fully sustainable cycling track made of wood: the Velodrome. The Velodrome is the perfect place to watch the world cycling championships with the whole family, as the building has 5,000 seats, giving you the atmosphere as if you were cycling on the track during the race itself!

The building is something to be proud of and will be remembered not only for its exceptional design, performance and unparalleled durability, but also for all the medals it has won. In 2018, the track cycling world championships were held in the Omnisport building, which became the most successful global tournament ever for the Netherlands.

And when you come to think that the indoor Velodrome is breath-taking wait until you see the outdoor Velodrome; adding an extra touch to a cycle track for future cyclists.

Outdoor Velodrome

Outdoor Velodrome


The outdoor velodrome, designed by Sander Douma Architects, was specified with Accoya wood for the 200m cycling track in Assen, the Netherlands, making it the perfect place for cyclists to train for their future cycling races while enjoying some fresh air.

The outdoor velodrome not only gives cyclists a feeling of freedom, but also creates benefits for the cyclists by giving them less resistance and more speed when cycling on the track. This is thanks to our unique modification process, which makes Accoya the perfect material for both internal and external applications of the sports stadium.


  1. Sports And Environment: Green Initiatives In Stadiums, online source: [access June 11, 2019]
  2. The 5 most sustainable sports venues in the world, online source: [access 04 January 2018]

Venlo city hall, Netherlands. Accoya wood decking. Upper floor.

How the products you choose – and the companies behind them – can help the world Build Back Better


How often do you think about where your products come from? We at Accsys are all becoming increasingly aware that the practices behind the brands matter. Environmental and social impacts, both positive and negative, are associated with everything we buy and use. We have got used to looking for ‘Fair trade’ on some things – like chocolate, coffee, and clothing – but don’t these factors affect all the products, materials and services around us?

By examining and understanding the impacts they have on the world, progressive businesses can shape the way they do things to ensure that what they do, what they make, and how they act can be a force for good. They can identify and choose to operate in a way that can benefit all types of stakeholders that they interact with, such as their employees, customers, suppliers, wider communities and the environment. Operating sustainably with an informed approach will ultimately help us all Build Back Better, creating stronger and more resilient businesses and having a positive impact on the world, the environment, and the communities around them.

Sustainability and purpose, integral to responsible business

At Accsys, our purpose is “Changing wood to change the world”, and we understand how the ‘green’ credentials of our product feed into overall business sustainability. Changing wood is what we do, changing the world is why we do it, and every time someone chooses to use our Accoya or Tricoya products they are making a decision with a positive environmental impact.

It’s not all just about the product though – to create the product, we have our business, and how we operate can be impactful too.  In 2020, we looked to formalize our approach to sustainability of the overall business by developing our approach to ‘ESG’, which stands for Environmental, Social and Governance – a way of looking at how what we do affects the world and everyone around us. We did our research and engaged with stakeholders inside and outside our organization, identifying what we call our ten ‘material issues’ for ESG: the ten most pertinent issues to our business.  These issues cover the whole breadth of ESG and they all have a role in delivering on our purpose, act according to our values, and make sure we are doing the right things, in the right ways.

ESG framework for Accoya

Your choice of products contributes to a more sustainable world

If trees are good for the environment, isn’t cutting them down to make products a problem?

Unsustainable wood can have disastrous impacts – from Illegal logging, deforestation, violation of human rights, biodiversity loss and the removal of natural carbon sinks.

Here at Accsys, we only use timber that has been certified to be harvested responsibly from well-managed forests that are continuously replenished, not damaging the surrounding environment or native flora and fauna. 100% of the wood we use to make Accoya and Tricoya is FSC (Forest Stewardship Council certified), the most recognized global standard for assuring sustainable sourcing of wood.

What does Building Back Better mean for health and wellbeing?

In the developed world, it is estimated we spend more than 90% of our time indoors either at home or at work, and the presence of synthetic materials and chemicals in our products and surroundings can actually have a negative impact on our health and wellbeing. It has also been well-researched that, much like having plants in our offices and houses, having wood around us can have positive impacts on creativity, mood and stress. To make sure we contribute to this, we’ve achieved the highest (Platinum) Material Health rating for Accoya from the Cradle to Cradle Certified Product Standard: it is a certified non-toxic product. Our focus on innovation and technology continues to ensure that our wood is non-toxic, meeting high standards for human health.

What happens at the end of its product life? Can the wood also have circular economy benefits?

As well as lasting for decades (and with a warranty for 50 years for above ground use), Accoya doesn’t contain any plastics or new elements that aren’t found naturally in wood: it’s biodegradable and can be handled in the same manner as raw wood at the end of life through recycling, composting or as a bio-based fuel source (as stated in the company’s KOMO product certificate and further evidenced by SHR – Wood Research Foundation Netherlands).  It can even be up-cycled into Tricoya wood chips, which are used to make high performance wood panels that can last decades more!

What about the transition to net zero economy?

At Accsys and through our flagship Accoya wood product, we believe that our actions and those actions of our customers can help contribute to one of the biggest challenges of our time – combatting climate change and the transition to a net zero economy.

Wood sequesters carbon, meaning that it captures carbon dioxide from the atmosphere and locks it in for its useful life, and the more durable and long lasting wood, alongside its use at end of life, can have a positive influence on the environment. Last year, our products locked in and safely stored around 50,000 tons of carbon dioxide. This means that everyone involved in the process to use Accoya, from making and distributing it to the owner living with it, has helped take the equivalent of roughly 120 million miles of car driving emissions out of the atmosphere and store it safely in a useful, beautiful product.

Accountability, reporting and communications is vital

Underpinning everything we do, at Accsys, we are working towards the highest standards through our own internal mechanisms around data management, reporting, collaboration, problem solving and sharing of best practices and employee engagement. Alongside our internal mechanisms, we own accountability for our actions through our focus on external accreditations – both to keep us on the right track and to show how we ‘walk the walk’ as well as ‘talk the talk’. Producing a Cradle to Cradle Certified™ Gold product isn’t just an accreditation, it’s about our ethos as a business, which includes the scope of environmental and social issues running through the whole way through our company, culture, values and purpose. Our environmental assessments and accreditations help us to Build Back Better through our processes and our products, and our customers support us in changing the world by choosing our products.

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Accoya wood at Botanical Gardens, Cambridge

Can your environment affect your mental health?

The impact of our surroundings on our mental health.


Mental health and sustainable building design…

Mental health and sustainable building design…

The past year has been like no other in so many ways, not least because of the little time we have spent in offices, many of us confined instead to our homes. Bedrooms, kitchens and in some cases, bathrooms converted into make-shift workspaces, often competing with flatmates or family members for prime locations or proximity to a Wi-Fi connection. But with restrictions easing and the prospect of spending real face time with colleagues once again a reality, how important are the office spaces we are returning to when it comes to our well-being, and how does your environment affect your mental health?

In the developed world, it is estimated we spend more than 90% of our time indoors either at home or at work. We know how the smallest thing like temperature can affect our comfort in such spaces, and in recent years we have started to become more aware of the other factors that can contribute to more than just our comfort, but our physical health. The biggest break-through in the last decade is probably our understanding of indoor VOCs (Volatile Organic Compounds) and the health risks they can pose. VOCs, are abundant in most indoor areas largely because of their presence in building materials and other products produced by mass industry. The worst offenders here are new buildings that contribute to the highest levels of off-gassing, because of the wide range of new materials emitting VOCs at the same time. This is exacerbated in the winter months when levels of VOCs can be 3-4 times higher than the summer months, due to lower rates of air exchange.

It is now widely documented, that certain materials can contribute to the lowering of VOCs in and around the home or office. It’s probably not a surprise to learn that it’s the man-made materials that serve up the highest levels of these unwelcome compounds into the air. Plastics, adhesives, paint, wood plastic composites (WPC), and resins are all singled out as key villains in the building materials category. Overexposure to VOCs can result in headaches, dizziness or even memory impairment in the short term, but it is the longer-term effects on certain bodily organs and the central nervous system that are still being researched.

Needless to say, not all building materials contribute VOCs, and you don’t have to look far to find a natural and sustainable building material in the form of real wood. A team at the Technical University of Munich recently compiled a report called10 reasons why wood is good for you and the scientific research to back it up’. Looking at the list, what strikes me is the number of reasons relating not just to physical health, but mental health –  a topic and issue that many have experienced and navigated over the last year.

So, with May being officially the month of Mental Health Awareness in the UK, let’s have a look at some of the key benefits from the report that demonstrate how wood can improve our mental health:

1. Less Stress

Perhaps one of the areas with the most comprehensive research is around stress. In short, natural environments and wood in par­ticular help reduce stress and improve wellbeing. Over the past ten years, several studies have come to the same conclusion.

One study8 showed that adding plants or even posters of plants into hospital waiting rooms had the potential to reduce patients’ feelings of stress. Another study9 put 119 students into four different rooms:

  • a room with wood and plants
  • a room with wood and no plants
  • a room with no wood but with plants
  • a room with no wood and no plants

The plants had no influence on the result, but the wood did. Students had lower stress levels in the wooden rooms.

Similarly, the newly refurbished National Oncology Institute waiting room in Bratislava, Slovakia was the location for a 2019 study.10 Visitors were measured for respiration, heart rate, cortisol level and blood pressure before, during and after their stay in the wooden room.

The participants described their emotions as predominantly satisfied or very satisfied and their cortisol levels decreased by 7.5%, implying a stress-reducing effect.

2. Better mood

Most of us feel that wood creates a sense of warmth. The smell, touch and feel of wood are regarded as pleasant and many people have generally positive associations with wood. That’s the result of a 2017 study3 of both building experts and members of the public in five different countries.

In a separate Finnish study6, natural and smooth wooden surfaces were found to be more pleasant than coated ones.


3. Stay focussed – natural environment and mental health

Just a few minutes of looking at a natural environment can have significant benefits. A study5 in 2014 investigated people’s ability to control their own impulses. They were given three minutes to look at a natural environment and then given a variety of tests. The results showed that participants had faster reaction times and lower heart rate variability after looking at a natural environment compared to an urban environment.

Another study4 conducted in 2015 tested people in four different types of interior spaces. Each space was furnished in exactly the same way but the structure and surface itself were made from different materials. The spaces were made from CLT (cross-laminated timber), clay, steel and steel retrofitted with clay elements. Those in the CLT and clay spaces had better attention and better reaction times. Participants also evaluated their wellbeing. The spaces with natural elements performed better than the steel container.

4. Creativity boost

In the past ten years, different research groups have come up with the same conclusion: wood grain as a texture positively influences creativity. The most recent evidence comes from a 2019 Slovakian study1 where people were tested in different simulated living room environments.

The surroundings that had the most positive effect on creativity were the ones using both warm and cold colours as well as natural materials such as wood and textiles. These surroundings also had the most positive effect on problem-solving capability, understanding and thinking ability.

On the other hand, the environment with strong colours, artificial wood imitations and synthetic textiles, triggered stress in the participants. The same study also tested people by putting them in front of three different walls and allowing them to touch the wall. Brain activity increased when looking at the wooden wall compared to looking at walls made from chipboard or white laminate.

Back in 2010, a different study2 examined creative performance in different environments and this also showed how exposed wood or stone surfaces have a higher potential for creativity. This was compared to artificially produced surfaces such as drywall, plastic laminate, glass, carpet or synthetic fibres.

Mental health and Accoya 

So hopefully we’ve made the case for the link between mental health, sustainability, and architecture. With people starting to return to offices around the world, now is the time to consider the materials around us and to understand how they are contributing to our physical and mental wellbeing. Small modifications to your surroundings can make material differences to how we feel, with natural wood being a key example. Accoya wood is the world’s leading ultra-high performance, sustainable wood brand used across a number of applications including windows, doors, decking, cladding and much more. Read more about the unique qualities of Accoya and how you can use it in your home.



  1. Vavrinsky, Kotradyova, Svobodova, Kopani, Donoval, Sedlak, Subjak, Zavodnik 2019: Advanced Wireless Sensors Used to Monitor the Impact of Environment
  2. Design on Human Physiology McCoy and Evans, 2010: The Potential Role of the Physical Environment in Fostering Creativity
  3. Strobel, Nyrud and Bysheim, 2017: Interior wood use: linking user perceptions to physical properties
  4. Bhatta, Tiippana, Vahtikari, Hughes and Kyttä, 2017: Sensory and Emotional Perception of Wooden Surfaces through Fingertip Touch
  5. Beute and de Kort, 2014: Natural resistance: Exposure to nature and self-regulation, mood, and physiology after ego-depletion
  6. Beukeboom et al 2012 Stress-Reducing Effects of Real and Artificial Nature in a Hospital Waiting Room, online source: [access Jul 18 2020]
  7. Fell D., 2010: Wood In the Human Environment: Restorative Properties Of Wood In The Built Indoor Environment. Vancouver: Faculty of Graduate Studies, University of British Columbia
  8. Kotradyova, Vavrinsky, Kalinakova, Petro, Jansakova, Boles und Svobodova, Helena, 2019: Wood and Its Impact on Humans and Environment Quality in Health Care Facilities

Marking 14 years of the Accoya journey

Today, on March 11, 2021, we’re marking 14 years exactly since the first ever batch of Accoya wood was produced: a milestone in our journey that we’re enormously proud of!


Since that inaugural batch back in 2007 the world has changed a lot and our business has evolved and grown, but there are at least two things that we have all been able to rely on: the high quality and lasting appeal of our Accoya wood, and the support of our partners.

Over the last 14 years, Accsys has worked with distributors to bring Accoya to the world. We’ve developed partnerships and relationships in Europe, the USA and Americas, Japan and across Australasia to name just a few. Our distributors and manufacturers really are key to our success. Many have transformed their businesses by using Accoya to make long-lasting products which come without the issues and callbacks experienced with other wood species.  It’s one sign of true confidence in the quality of our wood that distributors who were with us from the very beginning are still actively selling and marketing Accoya today.

So, today we’d like to thank all our friends, colleagues and associates and partners – the distributors, sub-distributors, manufacturers and system partners – who have helped us shape the future for sustainable, long-lasting building materials since 2007.  We also want to thank the architects, specifiers, developers and homeowners for choosing Accoya and making the world a more sustainable place – and it’s always a privilege to see our wood showcased in so many stunning designs and settings around the world!

Unrivaled performance

Unrivaled performance

Accoya is made using sustainable, responsibly grown and harvested FSC® certified wood and is Cradle to Cradle Certified™ Gold overall with a Platinum rating for Material Health. Its unparalleled structural stability, incredible durability and excellent sustainability credentials make it a truly unmatched product for a wide range of applications and situations.

Accoya has been used in projects around the world as a high-performance timber of choice for years, and it all started in Scotland back in 2006. The first worldwide Accoya project took place in Glenrothes in Fife, Scotland, when architectural designer Gordon Aitkin installed Accoya cladding on his own new family home. For him, sustainability and durability were crucial in the harsh Scottish climate.

When we went back to speak to Gordon ten years after installation, he revealed the only maintenance that he had needed to carry out on the siding was a light sand and recoat in a small, exposed area.

It’s due to Accoya’s exceptional dimensional stability, barely shrinking or swelling at all, that coatings will last longer even in tough environmental climates. It’s not just up in Scotland that we’ve been able to see first-hand the exceptional performance of Accoya though – there are projects all over the world, from Antarctica to Asia, beaches to mountaintops, and almost everywhere in between. With our commitment to quality, we also have testing rigs set up in Arnhem in the Netherlands that have monitored the performance of Accoya over the last decade with leading coatings company Remmers. After 14 years of exposure, the tests showed no visible coating degradation even with zero maintenance.

A Sustainable Focus

In recent years, sustainability has become a key global focus and the building industry is no exception. Architects, designers and manufacturers now look to use building materials which not only perform well and look good but come with genuine sustainability credentials.

Accoya wood’s green credentials are wide-ranging and well-established,  with its Cradle to Cradle Certified™ Gold status really standing out amongst other building materials. Cradle to Cradle is a globally recognized measure of safer, more sustainable products made for the circular economy. Brands like Google and M&S, for example, are now adopting Accoya for innovative wooden facades because of our unique combination of sustainability and high-performance advantages.

Looking beyond the product itself, last year we launched the Accsys 2020 Sustainability Report.  This sets out our strategy for and approach and commitment to sustainability across all aspects of our business. It really does underline our purpose at Accsys: changing wood to change the world, with today marking 14 years of doing just that.

What’s next for Accoya

What’s next for Accoya

Since that very first batch in 2007, Accsys has expanded our offering in both availability and scope to give even greater choice and versatility to the construction industry. We’ve constantly refined and developed our Accoya production processes and buying options, and developed Tricoya®, many of the Accoya’s long list of benefits to the world in panel form, unlocking vast creative and functional potential for a more sustainable built environment. We’ll be opening the world’s first Tricoya plant this year, an exciting prospect and quite amazing in the context of Accoya’s 14th ‘birthday’!

As we’re celebrating Accoya today though, we shouldn’t forget to also mention that the new launched recently, with updated branding and a whole new way to see and showcase the product and its uses in stunning detail – as well as simplifying the path to purchase.

So, maybe the question isn’t ‘why is Accoya still a favorite after 14 years’, but ‘why would you want to choose anything else?’

Where to Buy

You can buy Accoya and Accoya products from our selection of distributors or manufacturers in your region. Use our map search tool to find your nearest Accoya supplier.

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Aerial view of the path at the Botanic gardens, Cambridge. A man sits on the bench.

BusinessGreen Technology Awards

Accsys is delighted to have been chosen as winner of the Building Technology of the Year category in the BusinessGreen Technology Awards 2019, for its sustainable, durable and stable Accoya® wood product.


Accoya is a Sustainable Champion

Accoya is a Sustainable Champion

Accsys is delighted to have been chosen as winner of the Building Technology of the Year category in the BusinessGreen Technology Awards 2019, for its sustainable, durable and stable Accoya® wood product.


Accsys combines chemistry, technology and ingenuity to make high-performance wood products that enable new, sustainable choices for developing the built environment. Using fast-growing, sustainably-sourced timber, Accsys creates long-life wood products with properties that can compete with traditional non-sustainable options, such as tropical hardwoods, metal, plastic and concrete.


Accoya® is created through a proprietary acetylation process that boosts the already naturally-occurring acetyl content of wood, and by doing so, reduces the ability of the wood to absorb water. This makes it much more dimensionally stable, and extremely durable, with a 50 year above ground and 25 year in-ground or freshwater warranty. This combined with its cradle-to-cradle credentials makes it one of the best choices of sustainable building materials.


Accoya® is Cradle to Cradle Certified™ at the Gold level, recognising its status as one of the most bio-cycle friendly building materials available: it contains no toxic chemicals, is sourced from renewable, sustainable forests, has a low carbon footprint, and can be recycled like normal wood.


The BusinessGreen Technology Awards are now in their 5th year and recognise some of the most exciting green technology businesses and innovations in the UK.


The Building Technology of the Year category is for the most exciting recent developments in green construction and property, with judges looking for innovative and inspiring green building technologies that are working to cut environmental impacts and improve building performance.

Aerial view of the path at the Botanic gardens, Cambridge. A man sits on the bench.

BusinessGreen Technology Awards

Accsys is delighted to have been chosen as winner of the Building Technology of the Year category in the BusinessGreen Technology Awards 2019, for its sustainable, durable and stable Accoya® wood product.


Accoya® wood has again been Cradle to Cradle Certified TM Gold

The sustainable, stable and durable wood also retains its Platinum level in the Material Health classification.


Accoya® wood, the high performance wood designed for outdoor use and challenging applications, has been recognised once again for its environmental credentials and sustainable long life by the prestigious Cradle to Cradle CertifiedTM Products Program.


The Gold certificate was re-awarded to Accoya wood as it is completely non-toxic, has a sustainable sourcing strategy, and meets strict requirements for renewable energy use in production.


Accoya wood combines this recognised sustainability with equal or better performance than non-renewable, carbon intensive materials from the techno-cycle, such as PVC and aluminium. With sustainable sourcing, long life and easy reusability or recyclability, Accoya wood is a perfect fit for the circular economy and bio-cycle ideals behind the certification.


The Cradle to Cradle Certified™ Product Standard recognises commitment to the circular economy philosophy, and authoritatively highlights the importance of products with a positive impact on the environment.


Products are reassessed every two years, and Accoya wood has now been successfully recertified until August 2021, having been Cradle to Cradle Certified™ at the Gold level since 2010.


A separate classification and certificate has also be issued in the category of Material Health. The Material Health Certificate focuses on:

  • Knowing more about chemicals in products and supply chains
  • Avoiding chemicals of concern and shifting to inherently safer chemicals
  • Making a commitment to continual improvement towards greener chemistry


Accoya wood has again had its Platinum status for Material Health reconfirmed. This is the highest level of certification possible, indicating that the product has been thoroughly tested and it contains no toxic elements that could harm human health or the environment.


Pablo Van der Lugt, Head of Sustainability for Accsys, manufacturer of Accoya wood, commented:


“We are happy that Accoya wood is again awarded the highest possible score with respect to Material Health: Platinum, and we have maintained the highest score for any structural building material: Gold, since 2010! This again proves that, with Accoya, we offer a fully non-toxic, carbon negative, biobased material to replace high performance, highly CO2 producing synthetic materials from the techno-cycle, without compromising on performance. It is for this reason that Accoya is applied in the most prestigious circular economy building projects worldwide, such as Park2020 near Schiphol and Venlo City Hall”


With over 90 years of research to prove Accoya’s reliability, this chemically modified timber boasts outstanding levels of sustainability, durability and stability. The manufacturing process of acetylation produces long-lasting, high-performance wood with excellent environmental credentials, and no need for harmful chemicals or deforestation. The high quality and aesthetics of tropical hardwoods is exceeded by Accoya’s added capacity to withstand most extreme external environments, without switching to competing non-renewable materials.


Accoya wood is available to buy around the world. For further information and to speak to a distributor please visit

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