Calderstone Russet

Ibstock Calderstone Russet is a red wirecut clay facing brick, with a sandfaced texture, made at Ibstock’s Chesterton factory. The public selector lists 215X102X65 mm dimensions, 55 N/mm² compressive strength, 7% water absorption.

Manufacturer page

Carbon and evidence

Product Evidence

Evidence currently held for the Ibstock product record.

Ibstock

Recorded Carbon Result

127kgCO₂e/t

A1–A3 GWP-total per tonne of brick, from CHESTERTON Product Group 1&3 (HUB-0832). The declaration is per 1 kg; this is an exact ×1000 conversion. On Ibstock's own per-m² basis (60 bricks/m² at 2.15 kg) that is about 16.8 kgCO2e/m² of wall. The figure is the product group's, not a measurement of this colour alone — bricks in a group share a recipe and kiln.

Indicator: GWP-total

CHESTERTON Product Group 1&3 — clay bricks (HUB-0832)

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: Product family
Declared unit: 1 kg
Programme: EPD Hub
Registration: HUB-0832
Standard: EN 15804:2012+A2:2019, ISO 14025, ISO 21930
Valid until: 2028-11-10
Verification: Third-party verified

CHESTERTON Product Group 1&3 — a group of Ibstock bricks sharing a recipe and kiln at the CHESTERTON factory, extruded process. The declaration covers Calderstone Russet among others; it is the best published evidence for this colour, not a measurement of this colour alone. Production data period 01.01.2022 – 31.12.2022.

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

Carbon profile

kgCO2e per 1 tonne of clay bricks (declaration declares 1 kg; figures ×1000) · each bar starts at zero · local scale

A1-A3 product

127

A4-A5 site*

19.1

B use

not declared

—

C end of life

16

D reuse / recycling

-3.57

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

* EPD transport and installation scenario, not this project's. Not declared: use. 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

127 kgCO₂e

per 1 tonne of clay bricks (declaration declares 1 kg; figures ×1000)

A4*

8.75 kgCO₂e

per 1 tonne of clay bricks (declaration declares 1 kg; figures ×1000)

A5*

10.4 kgCO₂e

per 1 tonne of clay bricks (declaration declares 1 kg; figures ×1000)

C1

3.31 kgCO₂e

per 1 tonne of clay bricks (declaration declares 1 kg; figures ×1000)

C2

4.69 kgCO₂e

per 1 tonne of clay bricks (declaration declares 1 kg; figures ×1000)

C3

7.63 kgCO₂e

per 1 tonne of clay bricks (declaration declares 1 kg; figures ×1000)

C4

0.39 kgCO₂e

per 1 tonne of clay bricks (declaration declares 1 kg; figures ×1000)

D

-3.57 kgCO₂e

per 1 tonne of clay bricks (declaration declares 1 kg; figures ×1000)

* 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)*

146 kgCO₂e per 1 tonne of clay bricks (declaration declares 1 kg; figures ×1000)

A1–A3 127 + A4 8.75 + A5 10.4 · 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. The A1–A3 figure includes declared biogenic storage of -2.46 kgCO₂e; Part Z aggregates upfront carbon excluding sequestered carbon, which is the assessor's adjustment to make.

Sourced Product Claims

Manufactured in United KingdomPublished sourceSource
Third-party verified EPD, valid to 2028-11-10Third-party verifiedSource
Figure is for CHESTERTON Product Group 1&3, not a measurement of this colour aloneThird-party verifiedSource

Evidence Sources

Ibstock Brick Selector — Calderstone Russet

Ibstock

Coverage: Calderstone Russet

Published source

CHESTERTON Product Group 1&3 — clay bricks (HUB-0832)

EPD Hub

Coverage: CHESTERTON Product Group 1&3: Calderstone Russet and the other bricks sharing this recipe and kiln

Third-party verified

Ibstock Bricks & Masonry EPD Summary

Ibstock

Coverage: Names the product codes covered by each product-group declaration

Manufacturer declared

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.

Ibstock Calderstone Russet is a red wirecut clay facing brick, with a sandfaced texture, made at Ibstock’s Chesterton factory.

Typical Uses

•Facade cladding
•Weather protection
•External accents

Key Performance

Weather-resistant finish for facade exposure.

Typical Service-Life Estimate

100 years

Generic estimate for early design discussion; confirm with the manufacturer.

Specification Actions

•Confirm the current EPD covers the selected product, finish and manufacturing route.
•Calculate transport distances for primary materials.
•Document material reuse or reclaimed content percentages.

Evidence:Third-party verified

Specification

Product code: A2982A
Collection: Clay Bricks
Finish: Sandfaced Wirecut
Thickness: 65 mm
Width: 102 mm
Length: 215 mm
Density: 1440 kg/m³
Composition: Fired clay. Detailed constituent percentages are not declared in the public brick selector.
Thermal: Thermal conductivity 1.16 W/mK as published in selector
Country of manufacture: United Kingdom

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