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

50 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

High-performance rigid foam insulation boards; thin profile with high R-value.

Typical Uses

•Thermal envelope
•Roof/wall cavities
•Airtightness layers

Key Performance

Good thermal resistance with reduced heat loss.

Watch For

•
Thermal drift reducing R-value
Specify aged thermal values in calculations
•
Fire performance in some applications
Check fire rating for specific use

Specification Actions

•Provide VOC/indoor-air evidence and list key additives (e.g. plasticisers, flame retardants) where relevant.
•Verify low climate-impact blowing agent and recyclable foil facing
•Confirm fire performance for application

Indicative Health & Indoor Air

medium Risk

•isocyanates
•fire

Isocyanates used in manufacture. Once cured, low emissions. Toxic fumes if burned—ensure adequate fire protection.

Evidence:No evidence held

Products in this category

5 products from 4 manufacturers. Ordered by the evidence each record holds, never by commercial standing.

Specification

Finish: Rigid foam insulation
Service life: 50 years