What is an EPD? Quick Primer
An Environmental Product Declaration (EPD) is a standardized document that reports quantified environmental impacts of a product across defined life-cycle stages, based on a Life Cycle Assessment (LCA) conducted under harmonized rules. For construction products in particular, EN 15804 specifies how to structure that LCA and how to report indicators such as global warming potential, resource use, and waste categories.
Unlike a marketing label or "green" logo, an EPD is not a pass–fail claim; it is a transparent data sheet developed and verified under ISO 14025 (Type III environmental declarations) using LCA principles from ISO 14040 and ISO 14044. It does not say whether a product is "good" or "bad", but provides robust numbers that building LCA tools, carbon accounting platforms, and procurement teams can compare across suppliers.



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