Lignacite 10.4N

Name: Lignacite 10.4N
Brand: Lignacite

The higher-strength facing block. At 26.3 kgCO₂e/m² it is 26% above the 7.3 N version of the same block, and the declaration shows the whole difference sitting in A1 — the cement in the mix, not the process.

Manufacturer page

Carbon and evidence

Product Evidence

Evidence currently held for the Lignacite product record.

Lignacite

Recorded Carbon Result

26.3kgCO₂e/m²

A1–A3 GWP-total per m² of 100 mm wall (164 kg). Essentially all fossil; this block holds no meaningful biogenic carbon. Carbonation adds a further declared -0.641 in use (B1).

Indicator: GWP-total

Lignacite 10.4N (HUB-0147)

A1–A3 covers raw-material supply, transport to manufacture and manufacturing. It is product-stage information, not a whole-life result.

Environmental Product Declaration

EPD recorded

Coverage: Specific product
Declared unit: 1 m² 100 mm block wall, 164 kg
Programme: EPD Hub
Registration: HUB-0147
Standard: EN 15804:2012+A2:2019, ISO 14025, ISO 21930
Valid until: 2027-10-07
Verification: Third-party verified

Lignacite 10.4N, 10.4 N/mm², 100 mm. Declared per square metre of wall, so it is directly comparable with Lignacite’s other blocks.

Read the EPDSource: Core environmental impact indicators table (EN 15804+A2), GWP rows

Carbon profile

kgCO2e per 1 m² of 100 mm wall · each bar starts at zero · local scale

A1-A3 product

26.3

A4-A5 site*

1.33

B use

-0.641

C end of life

1.99

D reuse / recycling

-1.07

adds carbon stores or removes EPD scenario* reuse/recycling potential (D)

* EPD transport and installation scenario, not this project's. Module D shows potential impacts or benefits from reuse, recovery or recycling after the product's assessed life. It is reported separately and never added to A-C. Do not compare bar lengths between materials. Each chart may use a different scale and declared unit.

Reported GWP Modules

Displayed as stored; modules are not added together here.

A1–A3

26.3 kgCO₂e

per 1 m² of 100 mm wall

A4*

1.31 kgCO₂e

per 1 m² of 100 mm wall

A5*

0.0243 kgCO₂e

per 1 m² of 100 mm wall

-0.641 kgCO₂e

per 1 m² of 100 mm wall

0.533 kgCO₂e

per 1 m² of 100 mm wall

0.765 kgCO₂e

per 1 m² of 100 mm wall

0.523 kgCO₂e

per 1 m² of 100 mm wall

0.173 kgCO₂e

per 1 m² of 100 mm wall

-1.07 kgCO₂e

per 1 m² of 100 mm wall

* A4/A5 are EPD scenarios, not project-specific results. Module D is outside the A–C system boundary and is not added to A–C. Module nomenclature follows BS EN 15978 / EN 15804. Declared values are suitable as inputs to a whole life carbon assessment under the RICS Professional Standard (2nd edition); this panel is not an assessment.

Upfront Carbon (A1–A5)*

27.6 kgCO₂e per 1 m² of 100 mm wall

A1–A3 26.3 + A4 1.31 + A5 0.0243 · GWP-total, as declared

* Includes the EPD’s A4/A5 scenario assumptions, not project-specific transport or installation. This is the aggregation the proposed Part Z applies upfront limits to.

Service Life — the B4 Replacement Input

100 years · EPD reference service life

The declaration states a 100-year reference service life.

≈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.

Sourced Product Claims

Absorbs 0.641 kgCO2e/m² by carbonation in use (module B1)Third-party verifiedSource
Third-party verified EPD, valid to 2027-10-07Third-party verifiedSource

Evidence Sources

Lignacite 10.4N (HUB-0147)

EPD Hub

Third-party verified

Comparison Status

This result should be displayed for information only and not ranked against another product.

• The EPD is not linked to an evidence source.

Design & Specification Notes

Qualitative notes for early design discussion. Not product-specific EPD evidence, and not a basis for numerical comparison.

The higher-strength facing block.

Typical Uses

•Primary frame
•Long-span elements
•Load-bearing supports

Key Performance

High load-bearing capacity for primary frame.

Specification Actions

•Specify GGBS/PFA cement replacement (target: 50%+ replacement).
•Request EPD showing embodied carbon per m3.
•Calculate transport distances for primary materials.

Indicative Health & Indoor Air

low Risk

Evidence:Third-party verified

Specification

Range: Lignacite
Finish: Facing block with biomass aggregate, 100 mm, higher strength
Thickness: 100 mm
Service life: 100 years
Country of manufacture: United Kingdom