4buildingmaterials.com · Updated October 2026
Use this blank verification record before comparing Environmental Product Declarations (EPDs) for wall or floor finish materials. Under ISO 14025 and ISO 21930, two declarations cannot be compared directly unless they fulfill the same function and share aligned Product Category Rules (PCRs), reference units, life-cycle modules, and data boundaries. Enter “Not stated — request from supplier” wherever a field is missing.
Pre-comparison rule: Stop direct numerical comparison if Product A and Product B use different reference units (for example, 1 kg vs. 1 m²), different PCR documents or versions, unaligned life-cycle modules (for example, A1–A3 only vs. A1–C4), or unstated ancillary installation materials (adhesives, mortars, underlayments, or carrier rails).
| Verification field | Product A record | Product B record |
|---|---|---|
| Project surface and location (interior floor, wet wall, exterior rainscreen, etc.) | ||
| Required assembly function (wear class, moisture exposure, acoustic or fire target, study period) | ||
| Manufacturer, product name, thickness, and surface format | ||
| Required substrate, adhesive/mortar/underlayment, or sub-frame rails (A4–A5) |
| EPD boundary check | Product A declaration | Product B declaration |
|---|---|---|
| Program operator and registration number | ||
| Core rule and category PCR title, version, and publication date | ||
| Declared unit or functional unit (exact quantity, area, thickness, and mass per m²) | ||
| Data specificity (facility-specific, manufacturer-average, or industry-average) | ||
| Manufacturing plant location(s) and regional electricity grid | ||
| Issue date and 5-year expiration date (ISO 14025 / EPA validity check) | ||
| Included life-cycle modules (A1–A3 only, or A4–A5, B1–B7, C1–C4) | ||
| Reference Service Life (RSL) and building study period (if B modules are included) |
| Reported indicator (record units and module scope) | Product A | Product B |
|---|---|---|
| Global Warming Potential (GWP 100, kg CO₂e per unit) | ||
| Biogenic carbon treatment and end-of-life assumptions (if wood/bio-based) | ||
| Acidification and eutrophication potentials | ||
| Ozone depletion and photochemical smog formation | ||
| Primary energy demand and net freshwater consumption | ||
| Separate indoor VOC / chemical emissions test certificate (not covered by EPD) | ||
| Direct comparability status (Comparable as-is / Needs WBLCA assembly normalization / Incomparable) | ||
| Follow-up documentation requested from supplier |
Keep copies of both full EPD PDFs, PCR references, and installation datasheets with this check sheet.Reviewer: __________________________ Date: __________________________