Key Differences Between ISO 14025 and EN 15804 Standards

ISO 14025 and EN 15804 define EPD standards; ISO 14025 covers all sectors, while EN 15804 focuses on construction products.

As industries worldwide embrace sustainability, environmental transparency has become essential. Environmental Product Declarations (EPDs) play a key role in this process, relying on two major standards: ISO 14025 and EN 15804. Understanding their differences helps businesses ensure compliance and make informed sustainability decisions.

What Are ISO 14025 and EN 15804?

  • ISO 14025: An international standard that defines the principles for Type III Environmental Declarations (EPDs) across all industries. It provides a general framework for reporting a product’s environmental impact using Life Cycle Assessment (LCA).

  • EN 15804: A European standard tailored for the construction industry, offering detailed Product Category Rules (PCRs) for developing EPDs specifically for building materials.

Why Are These Standards Important?

  • Enhance Transparency: Provide verified environmental impact data for products.

  • Support Green Building Certifications: EN 15804-based EPDs contribute to certifications like LEED and BREEAM.

  • Ensure Compliance: ISO 14025 offers a global approach, while EN 15804 aligns with European regulations.

Key Differences Between ISO 14025 and EN 15804

FeatureISO 14025EN 15804
ScopeApplies to all industries globallySpecific to European construction sector
FocusGeneral EPD frameworkDetailed EPD rules for building materials
Life Cycle Assessment (LCA)Flexible LCA approachStrict, construction-focused LCA rules
ModulesNo specific module structureModular system (A1–D)
Geographical RelevanceInternational standardPrimarily for European markets
Certification UseSupports general sustainability goalsEssential for construction certifications

How Do These Standards Work Together?

ISO 14025 establishes fundamental EPD principles, while EN 15804 builds upon these principles with specific guidelines for the construction industry. Companies operating globally may need to comply with both standards to meet international and regional sustainability objectives.

Choosing the Right Standard

  • Use ISO 14025 if you need a global, multi-industry approach.

  • Use EN 15804 if your focus is on construction or compliance with EU regulations.

Conclusion: Driving Sustainability Through Standards

Both ISO 14025 and EN 15804 help businesses enhance sustainability, reduce environmental impact, and support certification requirements. While ISO 14025 provides a broad framework, EN 15804 ensures sector-specific guidance for construction materials. Understanding these standards is essential for organizations committed to environmental transparency and sustainable development.