EPD & HPD Explained Environmental Product Declaration · Health Product Declaration · Lifecycle Scope · LEED Credits
Environmental Product Declarations (EPDs) and Health Product Declarations (HPDs) are two distinct transparency documents that manufacturers provide for rigid core LVT. An EPD quantifies the product's environmental impacts across its lifecycle. An HPD discloses the product's chemical ingredients and their associated health hazard characteristics. Neither document is a certification of quality or environmental superiority — both are disclosure frameworks that allow project teams to compare products and demonstrate transparency for green building rating systems. Reference-only: no product recommendations.
An EPD answers "what environmental impact does this product have?" An HPD answers "what is this product made of?" Both are used for LEED v4 MR credits. EPDs are governed by ISO 14044 and product-specific PCR documents; HPDs follow the HPD Collaborative's Open Standard. Neither document constitutes a product performance certification.
Environmental Product Declaration (EPD)
What an EPD contains
An EPD is a standardized document that quantifies a product's environmental impacts based on a lifecycle assessment (LCA) conducted according to ISO 14044. For building products, EPDs typically cover at minimum a cradle-to-gate boundary (Modules A1–A3 in EN 15804 terminology): raw material extraction, transportation to manufacturing, and the manufacturing process itself. The EPD reports impact category values for global warming potential (GWP, in kg CO₂ equivalent), ozone depletion potential, acidification potential, eutrophication, photochemical ozone creation, and resource consumption metrics. EPDs for flooring must follow a Product Category Rule (PCR) document that specifies how the LCA should be conducted for that product type — ensuring consistency across manufacturers. In the US, flooring EPDs often follow the NSF-PCR-332 (Sustainability Assessment for Resilient Floor Coverings) or the EC3 database framework.
Industry-average vs product-specific EPDs
There are two types of EPDs relevant to flooring: industry-average EPDs (sometimes called generic or sector EPDs) that represent the average impact across a product category, and product-specific EPDs that reflect a particular manufacturer's product. For LEED v4 MR Credit: Building Product Disclosure and Optimization, product-specific EPDs earn full credit, while EPDs compliant with ISO 14044 but not product-specific may earn partial credit. LEED requires EPDs to be third-party verified — self-declared lifecycle assessments do not qualify. Checking whether an EPD is product-specific versus industry-average is essential for accurate credit documentation.
Health Product Declaration (HPD)
An HPD is a transparency document created under the HPD Collaborative's Open Standard. It lists all ingredients in the product above a 100 ppm threshold (by default), along with associated hazard characterizations drawn from reference databases including GreenScreen, IARC, OSHA, and California Proposition 65. For each listed ingredient, the HPD indicates the role in the product (plasticizer, binder, filler, etc.), the weight percentage range, and whether there are residual hazard characterizations. The HPD does not certify that a product is safe — it discloses what is known about the ingredients and associated hazards. Some HPDs are created with full disclosure (all ingredients above threshold); others use a "nested" or "GreenScreen Benchmark 1" approach where ingredients below a threshold are characterized only by hazard level without full disclosure.
| Document | Focuses On | Governed By | LEED v4 Credit |
|---|---|---|---|
| EPD | Environmental impacts (GWP, resources) | ISO 14044, EN 15804, PCR | MR Credit: Disclosure & Optimization |
| HPD | Chemical ingredients and health hazards | HPD Collaborative Open Standard v2.3 | MR Credit: Ingredient Disclosure |
| Both | Transparency, not certification | Third-party verified preferred | Different credit paths |
Spec Sheet Checklist
- For EPDs, verify whether the document is product-specific or industry-average — product-specific EPDs are required for full LEED credit.
- Check the EPD's system boundary: cradle-to-gate (A1–A3) is the minimum; some products disclose cradle-to-gate-plus-use or cradle-to-grave, which enables more complete comparisons.
- Confirm the EPD is third-party verified and follows a recognized PCR — NSF-PCR-332 is common for resilient flooring in North America.
- For HPDs, review the disclosure completeness level — full ingredient disclosure above 100 ppm is preferred over partially disclosed or "screened" formulations.
- Check document validity dates — both EPDs and HPDs have defined validity periods (typically 5 years) and must be current at the time of project submittal.
FAQ
Do EPDs mean a product is "green"? ⌄
No. An EPD is a transparency document, not a certification of sustainability. It reports quantified environmental impacts without making a judgment about acceptability or superiority. Having an EPD means the manufacturer disclosed this data under a standardized framework. Comparing EPDs between products is only valid when both follow the same PCR and the same system boundary.
Are HPDs required for all projects? ⌄
HPDs are not required by building code but are frequently required by commercial project specifications, institutional owners, and green building rating systems including LEED, WELL, and the Living Building Challenge. The WELL Building Standard's Materials concept requires ingredient disclosure above defined thresholds, which HPDs satisfy. Some owners require HPDs as standard submittals for healthcare, education, and government projects.
What is the difference between an EPD and an HPD? ⌄
An EPD focuses on environmental impacts across the lifecycle — greenhouse gas emissions, resource consumption, water use. An HPD focuses on chemical ingredients — listing what the product contains above 100 ppm with associated health hazard characterizations. EPDs answer "what environmental impact does this have?" while HPDs answer "what is this made of and what health hazards are known?" Both are required for full LEED v4 MR credit but through different credit pathways.
What does cradle-to-gate vs cradle-to-grave mean in an EPD? ⌄
Cradle-to-gate (Modules A1–A3) covers raw material extraction, transportation, and manufacturing only — it stops at the factory gate. This is the most common scope for building product EPDs. Cradle-to-grave extends through product use, maintenance, and end-of-life disposal or recycling. EPDs with different system boundaries cannot be directly compared — always verify scope alignment before comparing environmental impact values between products.
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Reference-Only Information
This page provides general informational reference about EPDs and HPDs for rigid core LVT. It does not provide installation guidance, professional advice, or product recommendations.