At RISE Design Studio, we’ve always championed a sustainable approach, especially in recent years when the climate crisis is more pressing than ever. As someone who’s seen the tide change and observed the inertia in adoption, let me take you through the essence of creating low-energy, low-embodied carbon designs.
In 2008, the UK emerged at the forefront of environmental consciousness by introducing the Climate Change Act, a legislation aimed at steering the nation towards a more sustainable future. The vision was clear: to achieve a substantial reduction in greenhouse gas emissions, targeting an ambitious 100% cut from the levels recorded in 1990 by the time we reach 2050. This commitment reflected not only a local desire for change but also resonated with international climate accords and set a benchmark for other nations to potentially emulate.
However, navigating the path to net zero proved far more intricate than setting a numerical target. Across industries, the challenge lay in deciphering how to transition from long-standing practices, deeply entrenched in the heart of our economy, to newer, greener alternatives. The construction industry, responsible for a significant portion of the UK’s carbon emissions, was no exception. While on paper the intentions seemed promising, the underlying complexity of this transition was evident in the nation’s real-time progress.
Fast-forward to 2019, and the urgency of the situation intensified. Despite a decade having passed since the initiation of the Climate Change Act, the UK Government found itself declaring an ‘environment and climate emergency’. While some sectors showed marked improvement, others lagged, making it evident that incremental changes were insufficient to meet the monumental task at hand.
This juxtaposition of intention and outcome brings us to a pivotal juncture in our sustainable journey. The question now looms large: have we been merely sustaining — continuing practices that, although perhaps slightly improved, are essentially a perpetuation of the status quo? Or are we genuinely evolving, pushing boundaries, innovating, and truly revolutionising the way we think about and practise construction?
Addressing this question necessitates a thorough introspection of the construction sector. Are the strategies adopted merely superficial measures designed to tick boxes and fulfil statutory requirements? Or do they signify a genuine commitment to change, marking the evolution of practices that integrate sustainability at their core?
Such introspection will be fundamental as we move forward. The world is ever-evolving, and the challenges we face in the next decade might be entirely different from those we grapple with today. Thus, understanding the broader context of ‘net zero’ in construction is not just about meeting targets set in the past, but about preparing for a future that demands sustainability as its foundation. We must build not just with today in mind but with an eye on tomorrow, ensuring that our strategies, practices, and ethos are adaptable, resilient, and truly sustainable.
The construction sector has always been a cornerstone of urbanisation and infrastructure development. As our cities expand and our infrastructure needs grow, so does the role of construction in shaping our environment. But with great responsibility comes the imperative to be accountable, and the statistics paint a startling picture of the sector’s impact on the environment.
2.1 The Carbon Footprint
With 45% of the UK’s carbon emissions attributed to the construction, operation, and maintenance of buildings, it’s evident that this sector is one of the primary contributors to the nation’s greenhouse gas outputs. These emissions can be traced back to various stages of a building’s lifecycle:
2.2 The Waste Dilemma
Waste generation is another critical area of concern. A striking 32% of landfill waste in the UK originates from construction and demolition activities. This not only represents a tremendous waste of resources but also has environmental implications. Landfills can lead to groundwater contamination, produce methane (a potent greenhouse gas), and destroy natural habitats.
Additionally, the fact that 13% of products procured for construction purposes are never used underscores a deeply entrenched inefficiency in the sector. This wastage speaks volumes about the need for better planning, forecasting, and sustainable procurement practices.
2.3 Paving the Way Forward
To effect genuine change, the construction sector must delve deeper than surface-level solutions. A systemic transformation is required, starting from the design phase right through to construction, operation, and eventual decommissioning.
In essence, the construction sector’s road to sustainability demands more than cursory changes. It’s about overhauling traditional practices, adopting innovative solutions, and committing to a vision where the built environment harmoniously coexists with the natural world.
When one speaks of carbon emissions in construction, the focus predominantly hovers over operational energy – the energy consumed during the usage phase of a building. However, a deeper dig reveals a far more insidious element: embodied carbon. This form of carbon refers to the greenhouse gas emissions produced during the entire life cycle of building materials, right from extraction to end-of-life. It’s the devil in the details, lurking beneath our commonly held perceptions of construction’s environmental impact.
3.1 Defining Embodied Carbon
Embodied carbon can be split into two primary categories:
Both forms of embodied carbon are equally vital, and together they account for a significant proportion of a building’s total carbon footprint.
3.2 The Overshadowed Emissions
There are several reasons why embodied carbon is often overlooked:
3.3 Unveiling the Hidden Impact
Several construction practices and phases contribute to the stealthy rise of embodied carbon:
3.4 Charting a New Course
Addressing embodied carbon necessitates a multi-pronged approach:
In summary, while operational energy remains a critical area of focus, a holistic approach that also accounts for embodied carbon is indispensable. Recognising and addressing this hidden devil in the details is imperative for a truly sustainable construction sector.
The skyline of our modern cities, with its towering skyscrapers and sprawling infrastructure, tells a tale of steel and concrete, two materials that have become synonymous with construction. Their strength, durability, and versatility have made them the default choice for most construction projects. Yet, as we delve deeper into the 21st century, we are confronted with the undeniable environmental costs these materials incur. But with companies like Solidia transforming the very essence of such materials, and with the burgeoning rise of alternative construction resources, we might be on the cusp of a materials revolution.
4.1 The Environmental Weight of Steel and Concrete
Steel and concrete, while architecturally transformative, have environmental repercussions:
4.2 Pioneering Change: The Solidia Example
Solidia’s approach exemplifies how innovation can alter the landscape of traditional materials. By changing the chemical process in cement production, Solidia not only reduces CO2 emissions but also uses CO2 in the curing process of concrete. Such advancements showcase the potential for revamping old practices for a greener future.
4.3 Beyond the Familiar: Exploring Alternative Materials
While innovations in concrete and steel are welcome, diversifying our materials palette is crucial:
4.4 The Road Ahead: Integration and Acceptance
The future of construction doesn’t necessarily lie in abandoning steel and concrete altogether but in integrating them with a broader set of sustainable materials. Challenges remain:
However, with the environmental imperative clearer than ever, the shift towards more sustainable materials is not just desirable but essential. As the construction industry redefines its relationship with materials, it takes a significant step towards a more sustainable, green, and innovative future.
Timber, once the primary material in many traditional construction practices, seemed to have been overshadowed by the rise of steel and concrete in modern times. However, as the quest for sustainable construction materials becomes imperative, timber is making a significant comeback. Central to this resurgence is Cross-Laminated Timber (CLT), a modern engineered wood product that is redefining the construction landscape. Pioneering firms such as RISE Design Studio and Waugh Thistleton are at the forefront of this timber revolution, exemplifying the perfect amalgamation of tradition, innovation, and sustainability.
5.1 The Science of Cross-Laminated Timber (CLT)
CLT is not just any regular wood. It’s a multi-layered wood panel made by stacking layers of lumber orthogonally and bonding them with structural adhesives. This unique structure provides CLT with:
5.2 The Environmental Advantage
Beyond its structural merits, CLT stands out for its sustainability:
5.3 Projects in the Limelight: Dalston Works
The transformative power of timber becomes evident when one examines architectural marvels like Dalston Works:
5.4 Timber’s Potential in Modern Architecture
The adaptability of timber is not just about its inherent properties but also about the innovative minds that mould it. Leading design studios are:
5.5 The Path Forward
While the merits of timber, particularly CLT, are compelling, it’s essential to approach timber construction with a balanced perspective. Responsible forestry, innovative design, and public perception are areas that require attention. With the right commitment, however, timber can indeed bridge the gap between our architectural ambitions and our environmental responsibilities.
In a world grappling with environmental challenges, timber’s re-emergence in the construction arena offers a glimmer of hope. By marrying the old and the new, it serves as a poignant reminder that sometimes, solutions to our most pressing issues can be found by looking back even as we march forward.
The catastrophic events at Grenfell Tower undoubtedly cast a dark shadow over the use of certain materials in construction, leading to heightened concerns around fire safety. While the emphasis on safety is necessary and commendable, it’s vital to ensure that accurate information drives public perception and policy decisions. One such material under scrutiny is timber. However, it’s essential to separate fact from fiction, particularly when considering the benefits and risks associated with timber, especially Cross-Laminated Timber (CLT).
6.1 Timber: The Burning Myths
Combustibility: Timber is often viewed as a highly flammable material. While it’s true that timber can burn, its combustion properties, especially in thick sections like those in CLT, are predictable. When exposed to fire, timber forms a protective char layer that insulates the internal layers, slowing down the burning rate.
Fire Spread: Another misconception is that timber can cause rapid fire spread. In reality, CLT panels, due to their compactness, burn at a much slower rate than expected, often providing more resistance than some other conventional materials.
6.2 The Science Behind Timber Fire Safety
Several factors determine timber’s behaviour in fires:
6.3 Sustainable Forestry: A Double Boon
Well-managed timber forests play a dual role:
6.4 Regulatory Response: Ensuring Safety
While the inherent properties of timber offer fire resistance, it’s paramount that the regulatory environment also reflects best practices:
6.5 Beyond Safety: The Holistic Benefits of Timber
While safety is paramount, it’s also essential to view timber in a broader context. Its sustainability, aesthetic appeal, and overall contribution to well-being make it a material that offers benefits well beyond just structural properties.
In conclusion, while the Grenfell tragedy rightly makes us question and re-evaluate our construction practices, it’s crucial that our responses are informed and balanced. Timber, especially in its engineered forms like CLT, presents an opportunity to build sustainably and safely. By debunking myths and investing in robust safety measures, we can ensure that timber continues to play a pivotal role in our built environment.
In recent times, the race towards a sustainable future has led to a surge of “green” labelled products and construction methodologies. While many of these standards have paved the way for increased environmental awareness, the challenge now lies in discerning between what is truly sustainable and what might merely be ‘greenwashed’ or superficially eco-friendly.
7.1 The Green Mirage: Unmasking Greenwashing
The term ‘greenwashing‘ describes the process by which organisations misleadingly promote their products, aims, or policies as environmentally friendly when, in reality, they might not be. In the realm of construction, this can manifest in several ways:
7.2 Evaluating the True Impact: Life Cycle Assessments
To genuinely gauge the sustainability of a material or method, it’s crucial to perform a Life Cycle Assessment (LCA). This comprehensive review examines the environmental impact of a product throughout its entire lifespan – from raw material extraction to disposal.
7.3 Beyond Materials: Holistic Sustainable Practices
While the materials used play a significant role, true sustainability encompasses a broader approach:
7.4 Setting the Bar Higher: Next-Generation Green Standards
For the construction industry to evolve sustainably, it’s essential to challenge and refine the green standards regularly:
7.5 Embracing Authentic Sustainability
The path to a genuinely sustainable future requires a shift in mindset. Rather than merely ticking boxes or achieving green labels, the construction industry should be guided by an inherent commitment to minimising environmental harm and enhancing societal well-being.
In conclusion, while current green standards have laid the essential groundwork, the next phase of sustainable construction must challenge, refine, and elevate these benchmarks. Only by aiming higher and demanding authentic sustainability can we hope to construct a future that’s not just built on solid foundations, but is also harmoniously intertwined with the environment.
In the past, the construction industry primarily revolved around traditional materials and methods, driven by tried-and-tested techniques. However, as environmental concerns have heightened, there’s been a transformative shift towards more sustainable options. Universities, startups, and leading businesses are pioneering new materials and technologies that not only challenge the status quo but promise a more sustainable future without compromising on performance.
8.1 Plant-Based Insulation: A Breath of Fresh Air
Washington State University has been at the forefront of developing plant-based insulation. Unlike conventional insulation, which often contains synthetic and potentially harmful components, plant-based alternatives offer:
8.2 BioMason: Building the Future, One Brick at a Time
BioMason’s groundbreaking approach involves “growing” bricks from organic material. This innovative method:
8.3 StoneCycling: Recycling for Robust Construction
StoneCycling has revolutionised brick manufacturing by using waste materials. Their method:
8.4 The Larger Landscape: Beyond Bricks and Insulation
While the aforementioned technologies are noteworthy, the horizon of sustainable construction materials is vast:
8.5 The Promise of Tomorrow
The innovations led by institutions like Washington State University and companies such as BioMason and StoneCycling are just the tip of the iceberg. With a growing emphasis on sustainable development, research and investments in this arena are set to soar.
In closing, the dawn of sustainable materials and technologies is not a distant dream but a burgeoning reality. As we continue to explore and embrace these alternatives, we’re not only crafting structures but also moulding a more sustainable, environmentally conscious future.
The push and pull between human-made rules and nature’s undeniable truths have long dictated the way we approach our environment. As the construction industry stands at the crossroads of modernity and sustainability, the driving factors for change have never been more apparent. The decision before us is clear: either adapt proactively through legislation or react defensively against the increasingly severe consequences of climate change.
9.1 The Power of Legislation
Governmental mandates can act as the very catalyst the industry needs to propel towards sustainable change.
9.2 The Wrath of Nature
Ignoring the environment’s cues is no longer an option. Nature’s reckoning is evident in the form of:
9.3 Advocacy in Design
As architects, engineers, and builders, industry professionals are in a unique position to influence sustainable change.
9.4 A Collective Vision
The journey to sustainability is not a solo endeavour but a collective vision. Every stakeholder, from the labourer on the ground to the investor in the boardroom, plays a pivotal role.
9.5 The Path Forward
While both legislation and nature’s reckoning are formidable forces, the true power lies in our hands. Through conscious choices, unyielding commitment, and a shared vision, the construction industry can and must shape a sustainable tomorrow. The stakes are high, but so too are the rewards: a world where buildings not only serve their occupants but also honour the environment they inhabit.
In the throes of an environmental revolution, the construction sector stands at the vanguard of change. While external pressures, from legislation to market demand, play a role, it’s the industry insiders who hold the key to reshaping its future. For the architects, builders, and designers at the helm, leading the charge towards a net-zero future is not only a responsibility but a calling.
10.1 Embracing the In-House Vanguard
10.2 Fostering Collaboration
10.3 Financing the Green Revolution
10.4 Nurturing Innovation
10.5 The Ethos of Change
At the heart of this monumental shift lies a change in ethos. The construction industry needs to move away from the short-term, profit-driven mindset to one that values long-term sustainability and societal benefit. This ethos, while business-centric, should echo the broader societal push for environmental stewardship.
Our commitment to a sustainable future in the construction sector is a marathon, not a sprint. It demands a holistic reimagining of processes, priorities, and perspectives. By forging ahead with resolve, unity, and vision, the industry can make the dream of a net-zero future an everyday reality. And in this collective endeavour, it’s not the distant policymakers or detached critics who will drive the change, but the passionate architects, builders, and designers at the very heart of the industry.
If you would like to talk through your project with the team, please do get in touch at mail@risedesignstudio.co.uk or give us a call on 020 3949 8471
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