Construction product manufacturers are under pressure from multiple directions. BREEAM and LEED specifications, the London Plan, Part Z embodied carbon requirements, and public procurement frameworks all increasingly require verified environmental data.
Embodied carbon is becoming a specification requirement
The UK construction sector accounts for around 25% of national carbon emissions. Regulators, specifiers and clients are responding. Part Z, the proposed amendment to Building Regulations requiring whole life carbon assessments, is advancing through the policy process. The London Plan already requires whole life carbon assessments for major developments. BREEAM and LEED award credits for products with EPDs. And public sector clients are beginning to specify maximum embodied carbon thresholds in procurement. Manufacturers without verified product data are losing specifications to competitors who have it.
A wide product range, a common data gap
Construction products span structural systems, cladding, roofing, insulation, windows and glazing, flooring, drainage, pipework, fixings, sealants and coatings. Each product category faces slightly different specification requirements, but all share a common gap: most manufacturers can describe what their products are made of, but very few have the verified, third-party assessed environmental data that modern procurement increasingly demands.
Green building credits
BREEAM Mat 01 and LEED MRc2 award credits based on EPDs for construction products. Specifiers working on BREEAM Excellent and Outstanding projects, or LEED Platinum, will increasingly require EPDs from manufacturers as a condition of specification.
Embodied carbon regulation
Proposed changes to Building Regulations would mandate whole life carbon assessments for all new buildings. This will create direct demand for product-level EPDs from manufacturers supplying those buildings, shifting EPDs from a differentiator to a baseline requirement.
Carbon thresholds in tenders
Public sector clients are beginning to specify maximum embodied carbon values in tender documents. Manufacturers without verified EPD data cannot demonstrate compliance, and risk losing significant contract opportunities.
| Impact Category | Mineral wool | PIR foam |
|---|---|---|
| Climate change (kg CO₂eq per m²) | 3.2 | 8.1 |
| Fossil resource depletion (kg oil-eq) | 1.1 | 6.4 |
| Acidification (mol H⁺eq) | 0.022 | 0.041 |
| End-of-life recyclability | High | Low |
Figures are illustrative and for explanatory purposes only.
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