Carbon and evidence

Product Evidence

Generic material record — no manufacturer product attached.

AI-estimated material

Evidence Base

Category estimate

No product evidence is attached to this generic material, so nothing on this card is numerical. The guidance below is qualitative — an AI-assisted category profile — for early design discussion, not for figures.

Next step: request a current product EPD or manufacturer carbon declaration, or swap in a branded product that holds one.

What's missing (3)

•No current product EPD is recorded.
•No quantified carbon result is recorded.
•No product-specific circularity or material-health claims are recorded.

Service Life — the B4 Replacement Input

100 years · basis not recorded

≈1 installation over a 60-year building study period.

B4 (replacement) follows the building, not the product: an assessor multiplies replacement cycles by project quantities. This record supplies the service life and does not compute B4.

Design & Specification Notes

Honed natural stone tiles for circulation zones with durable finish.

Typical Uses

•Primary flooring
•High-traffic circulation
•Work areas

Key Performance

Hard-wearing surface for high footfall.

Specification Actions

•Provide origin and responsible-sourcing evidence (reclaimed/local preferred where possible).
•Prioritise local or reclaimed stone
•Specify dry-laid or lime mortar bedding for future reuse

Indicative Health & Indoor Air

low Risk

•radon

Inert material. Some granites may emit low levels of radon—verify with supplier if used in enclosed spaces.

Evidence:No evidence held

Products in this category

6 products from 6 manufacturers · 25 in this category. Ordered by the evidence each record holds, never by commercial standing.

Specification

Finish: Honed stone tiles
Service life: 100 years