As the UK moves toward net-zero carbon targets, debates continue over definitions and carbon offset schemes, where developers can fund external projects to compensate for emissions.
Eco Build
The more timber used in a building the lower its’ carbon footprint will be
It is now almost universally accepted that we are experiencing changes to our climate brought about in part by decades of over-reliance on fossil fuels, to power industrial growth, to heat our houses and run our motor vehicles.
Fossil fuels
The UK’s reliance on fossil fuels has contributed to climate change, increasing greenhouse gas emissions and global temperatures. In response, the Stern Review (2005) highlighted the economic risks of climate change, leading to the Climate Change Act (2008), which set legally binding targets to reduce emissions by 34% by 2020 and 80% by 2050 (relative to 1990 levels).
Buildings emissions
Buildings account for 45% of UK CO₂ emissions, prompting government efforts to improve energy efficiency. Regulations encourage insulation, efficient boilers, and stricter Building Regulations, with the aim of making all new homes zero carbon by 2016 and non-domestic buildings by 2019 (equivalent to Code 6 of the Code for Sustainable Homes).
Emissions regulation
Key measures include Target Emission Rates (TER) and Dwelling Emission Rates (DER), ensuring buildings meet lower emissions thresholds through improved thermal efficiency. Successive Building Regulations have lowered TER, pushing for reduced emissions—2010 standards were 25% stricter than 2006, with further reductions in 2013.
Sustainable materials
Timber is highlighted as a sustainable material with a negative embodied carbon value, helping reduce a building’s overall carbon footprint. Responsibly sourced timber (e.g., FSC-certified) supports forest growth and carbon capture.
Fabric first
The “fabric first” approach prioritizes energy-efficient building design over renewable energy technology, as it is a more cost-effective way to achieve zero-carbon standards. Timber frame construction remains a key method in sustainable building as regulations push for more eco-friendly housing.
Biodiversity
Biodiversity Net Gain (BNG) is applied post-planning permission to ensure a minimum 10% increase in biodiversity value. Unless exempt, developers must submit and get approval for a Biodiversity Gain Plan before starting work, ensuring compliance with BNG objectives.
With the move towards zero carbon
Timber frame construction is the natural choice for everyone working towards Code compliance. The Code is divided into 9 categories
Energy and CO₂ Emissions
Reducing energy consumption and carbon dioxide emissions through energy-efficient design and renewable energy sources.
Ecology
Protecting and enhancing biodiversity by maintaining green spaces, planting trees, and minimizing disruption to wildlife.
Water
Minimizing water use through low-flow fixtures, water recycling, and rainwater harvesting.
Materials
Encouraging the use of sustainable, low-impact, and responsibly sourced materials.
Surface Water Runoff
Managing rainwater and reducing flood risk through permeable surfaces and sustainable drainage systems (SuDS).
Waste
Promoting waste reduction, recycling, and responsible construction waste management.
Pollution
Limiting pollution from construction materials, appliances, and site activities (e.g., reducing NOx emissions).
Health and Well-being
Ensuring good indoor air quality, natural lighting, and noise reduction for occupant comfort.
Management
Encouraging sustainable home user guides, construction site management, and responsible building practices.
Net-zero carbon targets
As the UK moves toward net-zero carbon targets, debates continue over definitions and carbon offset schemes, where developers can fund external projects to compensate for emissions.
Building Regulations on thermal performance are becoming stricter, with the Future Homes Standard set to take effect in 2025, requiring new homes to be 75-80% more efficient than those built to 2013 standards. Self-builders should future-proof their homes, as today’s insulation standards will soon be outdated, impacting property value.
Planning ahead is crucial
External walls may need to be thicker to meet future efficiency standards. Standard 300mm designs may not suffice, leading to planning or space issues. If using timber frame construction, instruct architects to plan for at least 400mm walls to ensure compliance and long-term sustainability.
