Sustainability
Environmental Product Declaration Guide for Interiors
An Environmental Product Declaration (EPD) is a standardised, third-party verified document that reports the environmental impact of a product across its lifecycle. For interior materials — flooring, wallcoverings, fabrics, and ceiling systems — EPDs provide the transparent, comparable data that specifiers need to make genuinely informed sustainability decisions.
As Singapore’s construction industry embraces Green Mark 2021 and corporate ESG reporting, understanding how to read, request, and apply EPDs is becoming a core professional skill for architects, interior designers, and procurement teams.
What is an Environmental Product Declaration?
An EPD is essentially a product’s environmental passport. Based on a life cycle assessment (LCA) conducted according to ISO 14025 and relevant product category rules (PCRs), it quantifies the environmental impacts associated with a product from raw material extraction through manufacturing, use, and end-of-life.
Unlike eco-labels that provide a simple pass/fail judgment, EPDs present detailed numerical data across multiple impact categories. This transparency allows specifiers to compare products objectively rather than relying on marketing claims.
Key impact categories reported in a typical EPD include:
- Global warming potential (GWP): The product’s carbon footprint, measured in kilograms of CO2 equivalent.
- Ozone depletion potential: Contribution to stratospheric ozone layer degradation.
- Acidification potential: Contribution to acid rain and soil acidification.
- Eutrophication potential: Contribution to excess nutrient loading in water bodies.
- Abiotic resource depletion: Consumption of non-renewable resources such as fossil fuels and minerals.
- Water consumption: Total freshwater use across the product lifecycle.
Why EPDs Matter for Interior Design Projects
Interior materials are specified in large quantities and replaced regularly over a building’s lifespan. Collectively, they represent a significant share of a project’s embodied environmental impact. EPDs provide the data needed to manage and reduce this impact.
Green Mark Compliance
The BCA Green Mark 2021 framework awards credits for embodied carbon measurement and reduction. Products with EPDs provide the verified data required to demonstrate compliance. Without EPDs, specifiers must rely on generic database figures that may not accurately represent the specific products installed.
Corporate ESG Reporting
Corporations reporting under sustainability frameworks such as GRI, SASB, or CDP need quantifiable environmental data for their operations, including fit-out materials. EPDs supply this data in a format that auditors and reporting frameworks recognise.
Informed Specification
EPDs enable apples-to-apples comparison between competing products. Two luxury vinyl flooring products may look identical in a sample board but differ significantly in their carbon footprint, water consumption, or recyclability. EPDs make these differences visible and quantifiable.
How to Read an EPD
EPDs follow a standardised structure, but the volume of data can be intimidating at first. Focus on these key sections to extract the most useful information.
Product Description
This section identifies the specific product or product group covered, including composition, dimensions, and intended application. Verify that the EPD covers the exact product you intend to specify, not a related but different product in the same range.
Declared Unit or Functional Unit
The declared unit defines the basis for all reported impacts — typically one square metre of installed product. The functional unit may additionally include a reference service life (e.g., one square metre over 20 years). Ensure you compare EPDs using the same unit basis.
Lifecycle Stages Covered
EPDs report impacts across defined lifecycle stages using a standardised coding system:
| Stage Code | Description | Coverage |
|---|---|---|
| A1-A3 | Product stage | Raw materials, transport to factory, manufacturing |
| A4-A5 | Construction stage | Transport to site, installation |
| B1-B7 | Use stage | Maintenance, repair, replacement, energy/water use |
| C1-C4 | End-of-life stage | Demolition, transport, waste processing, disposal |
| D | Beyond system boundary | Recycling and recovery benefits |
A cradle-to-grave EPD covering stages A through C provides the most complete picture. Cradle-to-gate EPDs covering only A1-A3 are less comprehensive but still useful for comparing manufacturing impacts.
Environmental Impact Results
The core data table lists numerical results for each impact category at each lifecycle stage. For most interior material comparisons, global warming potential (GWP) is the primary metric of interest, but a holistic assessment considers all categories.
Requesting and Using EPDs in Singapore Projects
EPDs are published by manufacturers and registered with programme operators such as the International EPD System, EPD Australasia, or UL Environment. They are typically available as downloadable PDF documents from the manufacturer’s website or the programme operator’s registry.
Practical Steps for Specifiers
- Ask suppliers early: Include EPD availability as a selection criterion in tender documents. Suppliers who invest in EPDs demonstrate a commitment to transparency that correlates with overall product quality.
- Check registration and validity: EPDs have an expiry date, typically five years from publication. Verify that the EPD is current and registered with a recognised programme operator. Expired EPDs may not be accepted for Green Mark submissions.
- Compare consistently: When comparing two products, ensure both EPDs use the same functional unit and cover the same lifecycle stages. Comparing a cradle-to-gate EPD against a cradle-to-grave EPD produces misleading results.
- Consider the full picture: A product with slightly higher GWP but significantly lower water consumption or better recyclability may be the superior overall choice depending on project priorities.
- Document for certification: Retain EPDs in the project’s sustainability documentation file. Green Mark assessors and corporate auditors require this evidence during review.
EPDs Across Interior Material Categories
EPD availability varies by material type and manufacturer. Here is the current landscape for the main interior material categories.
Flooring: The flooring industry leads in EPD adoption. Major LVT, SPC, carpet tile, and vinyl sheet manufacturers publish EPDs for their commercial ranges. Availability is highest for products targeting the commercial and healthcare sectors.
Wallcoverings: EPD availability for wallcoverings is growing but less universal than for flooring. European manufacturers, particularly those supplying commercial projects, are leading adoption. Specifiers should request EPDs from shortlisted wallcovering suppliers as a matter of standard practice.
Fabrics: EPDs for upholstery and drapery fabrics are less common but emerging. Some performance fabric manufacturers publish product-level environmental data, though not always in full EPD format. Request whatever environmental documentation is available and use it to inform comparisons.
Final Thoughts
Environmental Product Declarations transform interior material selection from a subjective exercise into a transparent, data-driven process. For Singapore projects pursuing Green Mark certification, meeting corporate sustainability targets, or simply making responsible choices, EPDs provide the verified evidence needed to specify with confidence.
As the market for sustainable interior materials grows, EPD availability will continue to expand. Specifiers who develop fluency in reading and applying EPDs now will be well prepared for a construction industry increasingly defined by environmental accountability.
Request free samples from our Singapore showroom and ask about Environmental Product Declarations for your shortlisted materials.
