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

30 years · basis not recorded

≈2 installations 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

Building-integrated or ballasted PV array sized for onsite renewable generation.

Typical Uses

•Roof coverings
•Waterproofing layer
•Weather protection

Key Performance

High durability in wet exposure and wind uplift.

Specification Actions

•Provide an EPD (EN 15804) or verified embodied carbon figure (A1–A3), and state the life-cycle stages covered.
•Verify manufacturer take-back scheme for panels
•Confirm roof structure capacity for additional load

Indicative Health & Indoor Air

low Risk

External installation with no indoor air quality impact. Panels are sealed units.

Evidence:No evidence held

Products in this category

6 products from 5 manufacturers · 35 in this category. Ordered by the evidence each record holds, never by commercial standing.

Specification

Finish: Building-integrated PV
Service life: 30 years