How to Read a Carpet Tile EPD Before You Put It in a Project Specification
TL;DR
A carpet tile EPD is a verified life-cycle environmental declaration, not a product-performance certificate. Before putting one into a specification, check the programme, PCR, declared unit, product scope, life-cycle modules, validity and verification statement. Then use the impact results only for a like-for-like comparison with the same method and scope.
1. Direct answer: what an EPD tells you
A carpet tile EPD is a verified life-cycle environmental declaration, not a product-performance certificate. Before putting one into a specification, check the programme, PCR, declared unit, product scope, life-cycle modules, validity and verification statement. Then use the impact results only for a like-for-like comparison with the same method and scope.
This guide is for architects, sustainability consultants, procurement teams and contractors who need to read an EPD without turning environmental data into an unsupported performance promise.
2. Read the first page as a control sheet
The document map: read the control fields first
- Product identity: manufacturer, product name, variants and manufacturing sites.
- Programme and registration: the programme operator, registration number, publication date and validity period.
- PCR and standards: the Product Category Rules and LCA standards used to calculate the declaration.
- Declared unit: for example an area or mass basis. Do not compare values calculated on different units.
- System boundary and modules: identify which life-cycle stages are included and which are not declared.
- Impact indicators: record the indicator name, unit, reference service life if supplied, and any scenario assumptions.
- Verification: identify the independent verifier and whether the declaration is programme-verified.
- Comparability note: compare only declarations with equivalent products, PCR, units, boundaries and assumptions.
3. Follow the life-cycle boundary
For a project submittal, save the exact EPD revision, then place its product identity, PCR, declared unit, modules and validity beside the specification line. If the requested product or construction is not named, ask for confirmation rather than copying the number into a sustainability schedule.
| Check | Do not infer |
|---|---|
| Boundary | An EPD does not certify abrasion resistance, colourfastness, stain resistance, fire classification or acoustic performance. |
| Boundary | An EPD value is not a price, a recycled-content claim or a proof that a particular UNIJOY product has an EPD. |
| Boundary | A lower result for one indicator does not automatically mean a lower result for every indicator. |
| Boundary | A declaration covering a product family may not represent every colour, backing or manufacturing site; read its scope. |
4. Use the results without overclaiming
For a project submittal, save the exact EPD revision, then place its product identity, PCR, declared unit, modules and validity beside the specification line. If the requested product or construction is not named, ask for confirmation rather than copying the number into a sustainability schedule.
Frequently asked questions
Is an EPD a performance certificate?
No. An EPD communicates verified life-cycle environmental information. Product performance such as wear, fire, colourfastness or acoustics requires its own product-specific evidence.
Can I compare any two carpet tile EPDs?
Only after checking equivalent product scope, PCR, declared unit, life-cycle boundary, indicators, assumptions and validity.
What should I save for a submittal?
Save the exact EPD revision and record its product identity, programme, PCR, unit, modules, validity and verifier beside the specification.
Sources & further reading
- ISO 14025:2026 — Environmental product declarations
- ISO/TS 14027:2017 — Product category rules
- ISO 14020:2022 — Environmental statements
- EPD International — What is an EPD?
- EPD International — construction products PCR
Figures attributed to other manufacturers are their own published values, quoted for context. Different laboratories, sample build-ups and substrates are not directly comparable.