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An introduction to EPDs (Environmental Product Declarations)
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Sustainability is a core requirement in modern construction. With growing pressure to reduce embodied carbon and meet stricter regulations, clients, contractors and regulators increasingly expect proof that materials are as sustainable as claimed, which means transparency is key.
Environmental Product Declarations (EPDs) provide that transparency. These independently verified documents detail a product’s environmental performance across its entire life cycle, from raw material extraction to the end of its life. They make it possible to compare construction products within the same product category and choose materials that support sustainability goals.
For Lignacite, EPDs are a practical commitment to accountability. Every block we produce – not just the Lignacite ECO Range – comes with an independently verified EPD, giving customers the confidence to specify sustainable building products backed by credible data. It’s a strong example of how a manufacturer can use the EPD system to deliver reliable, transparent environmental information in a competitive market.
What is an EPD?
An Environmental Product Declaration – sometimes called an ‘environmental declaration’ – is a standardised, third-party verified EPD document. It sets out a product’s environmental impact over its entire life cycle from raw material extraction, manufacturing and use to end-of-life stages, including disposal or recycling.
Each EPD is based on a Life Cycle Assessment (LCA) and prepared in line with international standards such as ISO 14025 and EN 15804, as well as relevant Product Category Rules (PCRs) for the specific product category. These rules ensure that product EPDs can be meaningfully compared.
An EPD evaluates environmental indicators, including carbon footprint, resource use, water consumption and emissions. Because EPD data is assessed by individual verifiers under recognised EPD programmes – and overseen by an EPD programme operator – it offers a trustworthy basis for decision-making. Many EPDs also appear on public databases, such as the EPD portal or the ECO Platform, giving easy access to credible public EPD information.
In short, an EPD is both a technical document and a trust mark – giving buyers confidence that environmental claims are backed by robust evidence. The Lignacite ECO Range is a clear example of this in action, with every block backed by verified EPDs that allow customers to quantify and compare carbon savings on their projects.
What should you look for in an EPD?
An Environmental Product Declaration is only as valuable as the information it contains. To get the most from it, you need to know what to check – and why it matters.
The first step is to look for independent verification. A credible EPD will have been assessed by a qualified third party in line with EN 15804 and ISO 14025. It should name the verifier, state which EPD programme operator has certified the EPD document and reference the relevant Product Category Rules. These rules define the scope and comparability of results, ensuring EPD data can be fairly compared across construction products in the same product category.
Just as importantly, check which version of the standard the EPD complies with. All of Lignacite’s EPDs fully comply with BS EN 15804:2012+A2:2019, the current standard. Some older EPDs were only prepared to BS EN 15804:2012+A1:2013, but these ceased to be valid after 2022. If an EPD still references the A1:2013 version, it should no longer be used.
Scope matters too. Some EPDs – sometimes referred to as public EPDs when published on an EPD portal – report only “cradle-to-gate” impacts. This means they only cover stages up to the factory gate. Others include transport, installation, use and end of life in what is known as a “cradle-to-grave” assessment. This distinction should be clear in the LCA report or any supporting briefing papers.
You should also check the validity of the document. Many EPDs have a lifespan of five years, so make sure the one you’re reviewing is up to date.
Look closely at the environmental indicators too. Global Warming Potential is the most common, but also review resource use, water consumption, emissions to air and water and waste/recycling potential. The best EPD documents are transparent about their data sources, LCA tools and methodology, so results can be interpreted accurately.
When done well, EPDs do more than provide data – they strengthen tenders, support BREEAM credits and help meet procurement criteria. The Lignacite ECO Range embodies this approach, with verified EPDs from EPD Hub that allow customers to compare performance, meet compliance targets and prove sustainable choices.
Why do certain products require an EPD?
In sectors such as construction, where embodied carbon and life cycle impacts are critical, EPDs are becoming the norm. This is driven by regulation, market demand and the need for credible environmental information.
Many countries mandate EPDs for specific construction products, particularly in public procurement. Updated international standards such as EN 15804:2012+A2:2019 demand more comprehensive reporting, prompting manufacturers to publish compliant product EPDs.
Green building frameworks like BREEAM and Green Star reward the use of products with verified EPDs. They also rely on them for Whole Life Carbon Assessments, which depend on accurate LCA reports and EPD data.
Market forces are equally strong. Tenders for clients and government buyers increasingly require EPD-backed sustainable building products. This not only ensures transparency but also helps them choose products with better environmental performance.
For companies aiming for net zero, EPD documents are indispensable. They make it possible to identify lower-impact options and track carbon goals.
Why choose products with an EPD over those without?
Products with EPDs offer something their competitors cannot: independent, transparent, third-party verified environmental declaration data. An EPD details every stage of a product’s life – from raw material extraction to end of life – and quantifies its impact using recognised LCA tools.
This level of insight helps specifiers and contractors to choose materials that meet both sustainability targets and procurement requirements while complying with international standards. EPD-backed products also facilitate accurate Whole Life Carbon Assessments, support certification credits, and build trust with clients.
By selecting products with verified EPDs, buyers send a clear message: transparency matters. This encourages more manufacturers to publish their own product EPDs, raising standards across the industry. The Lignacite ECO Range demonstrates this perfectly – every block has an independently verified EPD from EPD Hub, accessible through an EPD portal, giving customers the assurance they need to meet both sustainability and compliance needs.
Helping make construction greener
The Lignacite ECO Range proves that sustainability and performance can go hand in hand. With every block backed by an independently verified EPD, it offers clear, credible environmental information to support environmental targets and compliance requirements. It’s a reliable, transparent choice that makes meeting embodied carbon goals simpler – and demonstrates our commitment to building a greener future.
