Credentials

Fire, emissions, health and environmental declarations for the systems we install — with the body that issued each one named, and the expiry stated where the document declares it.

How to read this

Three different instruments get confused with one another on submittals, so it is worth being exact about which is which.

An EPD, an Environmental Product Declaration, measures environmental impact across the whole life cycle — carbon, energy, waste, resource depletion. It always requires third-party verification, and it is built on ISO 14025 and EN 15804. It contributes to LEED and Estidama.

An HPD, a Health Product Declaration, is about human health alone: it discloses chemical ingredients and screens them against known hazard lists. It may be self-published, and third-party verification earns more credit. It contributes to LEED, WELL and mindful MATERIALS.

A VOC emission or content test report is neither. It is powerful evidence for indoor-air credits, and we will never present one to you as an EPD or an HPD.

The register

What is held, for which system, issued by whom. Every document listed is free to download from the specification section.

InstrumentScopeIssued byStatus

Environmental Product Declaration Clayworks clay plasters — Rustic, Demi-Rustic, Smooth, Tonal. ISO 14025 / EN 15804, cradle-to-grave A1–D EPD International AB — The International EPD System Expired 8 Nov 2025 — renewal in progress

Health Product Declaration Clayworks Demi-Rustic and Rustic. HPD v2.3, full disclosure to 1,000 ppm Health Product Declaration Collaborative (HPDC) Valid to 7 Feb 2028 — self-prepared, not third-party verified

Indoor Air Comfort GOLD Clayworks Smooth, Rustic and Tadelakt — full VOC emission test reports, 2025 Eurofins Product Testing A/S, Galten, Denmark Current

Reaction to fire — Euroclass A1 Clayworks clay plasters to EN 13501 and EN 15824; Cemher Microtadelakt and Microdur Plus to UNE EN 13501-1:2019 Per manufacturer test reports Current

Surface spread of flame — Class 1 / Class 0 Clayworks interior clay to BS 476-7 and BS 476-6 BRE Current

VOC emission and content test reports Cemher Microtadelakt, Hidroprimer and Clay Stone — French A+, EMICODE EC1 PLUS, Blue Angel, BREEAM Exemplary, LEED v4.1 Applus Laboratories / LGAI Technological Center S.A., DANAK reg. 522 Current — not an EPD or HPD

BBA Agrément Certificate Addagrip Addaset, Addaset ECO and Addaset Non UVR resin bound surfacing British Board of Agrément 16/5288, Issue 3 — confirm currency at bbacerts.co.uk

ISO 9001:2015 — Quality Addagrip Terraco — manufacture and formulation of resin-based surfacing and flooring systems Forefront Certification Ltd, Bromsgrove, UK Valid to 15 Nov 2028

ISO 14001:2015 — Environmental Addagrip Terraco — same scope Forefront Certification Ltd, Bromsgrove, UK Valid to 15 Nov 2028

Declaration of Performance Micropool Aquapur Pinturas Kilnher S.L., Alaquas, Valencia Current

LEED v4.1 contribution attestation Cemher Hidroprimer Applus / LGAI Beta — an attestation of contribution, never a certification

Where a document has lapsed or is a beta instrument, it is flagged here and on the download itself. We would rather you knew before a consultant told you.

What we can issue

Technical data sheets and safety data sheets for every system Health Product Declarations and sustainability data for WELL and mindful MATERIALS VOC emission and content reports for LEED, BREEAM and Mostadam indoor-air credits BBA Agrément and ISO 9001 / 14001 certificates for the resin bound systems Declarations of performance and system test reports Completed specification clauses against your finishes schedule A ten year warranty covering material and workmanship together

The sustainability case

Six things stack up, and they are the reason these materials appear on giga-project sustainability schedules.

Low cradle-to-gate carbon — earth systems at 0.048 to 0.068 kg CO2e/kg, A1–A3 Active carbon re-absorption as lime carbonates over the life of the surface Zero to ultra-low VOCs, verified by third-party emission testing Euroclass A1 reaction to fire on the mineral systems Breathability and moisture buffering — healthier indoor air, less mould risk Contribution to LEED, BREEAM, WELL, Estidama and Mostadam submissions

Need a document for a submittal?

Every publishable certificate, data sheet and report is in the specification library, free to download without a form. If what you need is not there, ask — we will tell you whether it exists and who holds it.

Open the document library Visit the showroom