Construction-Material Embodied-Carbon Factors

413 emission factors held in the GreenCalculus MasterBrain, drawn from European Aluminium — Environmental Profile Report 2024 (V.2.0), ÖKOBAUDAT 2024 (Release I) — German federal LCA database for building materials, LETI Embodied Carbon Primer + Carbon Alignment, RIBA 2030 Climate Challenge (version 2), Commission Implementing Regulation (EU) 2025/2621 of 16 December 2025 laying down rules for the application of Regulation (EU) 2023/956 as regards the establishment of default values, MPA Cement Fact Sheet 18 — Embodied CO2e of UK cements (Revision 4), Inventory of Carbon & Energy (ICE) Version 2.0 — open 2011 release (Hammond & Jones, University of Bath), UK Government GHG Conversion Factors 2025, Whole Life Carbon Assessment for the Built Environment, RICS Professional Standard, 2nd edition, Life Expectancy of Building Components (BCIS / RICS), WRAP Net Waste Tool — construction material wastage rates (baseline / good practice), IPCC 2006 Guidelines Vol 5 — Waste, EN 15978:2011 Sustainability of construction works — Assessment of environmental performance of buildings — Calculation method, Ecodesign & Energy Labelling requirements for household dishwashers and Energy Saving Trust – home appliance & water-use guidance. Values are read live from the data layer on every page build, so nothing here is re-typed and nothing can drift from the figures the calculators use. They span 16 units of measurement — 165 of them in kg CO2e per m3 — which is why the spread below is reported per unit and never blended. The count includes 7 reusable versus single-use comparison factors, a family too small to warrant a page of its own and published nowhere else.

Where these factors are used

Steel and Aluminium Embodied Carbon and Concrete & Cement Embodied Emissions set out how factors in this group are applied, and Embodied Carbon — Steel & Aluminium Calculator and Embodied Carbon Calculator draw on them directly. Each value below names the upstream source it came from.

What this group contains

Figures are computed per unit and never blended: a median across different units would be arithmetically valid and physically meaningless. 5 further units in this group have fewer than 3 factors and are counted above but not described.

What has changed

Change history is reconstructed from every released edition of the data layer, v2025.13 to v2026.107. A factor absent from this table has held the same value throughout. A change shown as a dash moved off zero, where a percentage has no meaning.

Sources, citation & machine access

Cite the upstream publisher for the values themselves. The reference below credits this compilation and, more usefully, pins the edition you read.

Say, Jeremiah (2026). Construction-Material Embodied-Carbon Factors (MasterBrain v2026.110). GreenCalculus. https://greencalculus.com/factors/construction-material-embodied-carbon-factors/

Cite this factor group

Values change between editions. Quoting the MasterBrain version is what lets a reader resolve the exact number you used — see the change record above for factors in this group that have moved.

For a reference manager — BibTeX, then RIS:

@misc{greencalculus_materials_2026,
  author       = {Say, Jeremiah},
  title        = {Construction-Material Embodied-Carbon Factors},
  year         = {2026},
  howpublished = {GreenCalculus},
  note         = {MasterBrain v2026.110},
  url          = {https://greencalculus.com/factors/construction-material-embodied-carbon-factors/}
}

TY  - DATA
AU  - Say, Jeremiah
TI  - Construction-Material Embodied-Carbon Factors
PY  - 2026
PB  - GreenCalculus
ET  - MasterBrain v2026.110
UR  - https://greencalculus.com/factors/construction-material-embodied-carbon-factors/
ER  - 

Every factor on this page is readable from the open endpoint. No key, no signup:

https://greencalculus.com/wp-json/greencalculus/v1/factors/materials

curl -s "https://greencalculus.com/wp-json/greencalculus/v1/factors/materials?limit=500"

import requests
rows = requests.get("https://greencalculus.com/wp-json/greencalculus/v1/factors/materials", params={"limit": 500}).json()["factors"]
print(len(rows), "factors in materials")

Or the same rows as a spreadsheet — every factor with its source, the edition it last changed in, and its own link:

https://greencalculus.com/wp-json/greencalculus/v1/factors-export?page=construction-material-embodied-carbon-factors

Download this table as CSV

Both responses carry an X-GC-Version header, so a consumer can detect a new edition without diffing the payload. The CSV filename carries the edition too, so two downloads months apart do not collide.

All factors

Last changed names the data-layer edition in which a factor last took a new value, reconstructed from every released edition since v2025.13. A dash means the value has not moved since tracking began — which is the answer to "is the figure I used last year still current?".

Common questions