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Knowledge Base

Materials.

Carbon footprint, density, and lifespan for 35 building materials. Factual data — not marketing.

All materials — grouped by category 41 materials

Structure

6 items
Structure

Brick

GWP: 0.23 kg CO₂/kg
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Structure

CLT (Cross-Laminated Timber)

GWP: −0.55 kg CO₂/kg
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Structure

Concrete

GWP: 0.13 kg CO₂/kg
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Structure

LECA (Expanded Clay)

GWP: 0.3 kg CO₂/kg
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Structure

Structural Steel

GWP: 1.46 kg CO₂/kg
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Structure

Structural Timber

GWP: −0.72 kg CO₂/kg
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Insulation

14 items
Insulation

Aerogel Insulation

GWP: 6.5 kg CO₂/kg
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Insulation

Cellulose Insulation

GWP: 0.12 kg CO₂/kg
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Insulation

Cork Insulation

GWP: −2 kg CO₂/kg
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Insulation

EPS Insulation

GWP: 3.29 kg CO₂/kg
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Insulation

Flax Insulation

GWP: −0.56 kg CO₂/kg
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Insulation

Glass Wool

GWP: 0.85 kg CO₂/kg
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Insulation

Hemp Insulation

GWP: −1.5 kg CO₂/kg
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Insulation

Mineral Wool

GWP: 1.05 kg CO₂/kg
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Insulation

Perlite

GWP: 0.48 kg CO₂/kg
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Insulation

Seagrass Insulation

GWP: −0.75 kg CO₂/kg
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Insulation

Sheep Wool Insulation

GWP: −3.5 kg CO₂/kg
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Insulation

Straw (Construction)

GWP: −1.5 kg CO₂/kg
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Insulation

Wood Fibre Insulation

GWP: 0.15 kg CO₂/kg
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Insulation

XPS Insulation

GWP: 4.16 kg CO₂/kg
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Roofing

4 items
Roofing

Concrete Roof Tiles

GWP: 0.25 kg CO₂/kg
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Roofing

Natural Slate

GWP: 0.058 kg CO₂/kg
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Roofing

Roof Membrane (TPO/EPDM)

GWP: 2.5 kg CO₂/kg
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Roofing

Roofing Felt

GWP: 1.2 kg CO₂/kg
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Facade & Cladding

4 items
Facade & Cladding

Fibre Cement

GWP: 0.67 kg CO₂/kg
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Facade & Cladding

Gypsum Board

GWP: 0.39 kg CO₂/kg
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Facade & Cladding

Reclaimed Brick

GWP: 0.03 kg CO₂/kg
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Facade & Cladding

Tiles and Ceramics

GWP: 0.7 kg CO₂/kg
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Metals

4 items
Metals

Aluminium

GWP: 8.24 kg CO₂/kg
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Metals

Copper

GWP: 3.5 kg CO₂/kg
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Metals

Stainless Steel

GWP: 5.5 kg CO₂/kg
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Metals

Zinc

GWP: 3.1 kg CO₂/kg
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Windows & Glass

2 items
Windows & Glass

Glass

GWP: 0.86 kg CO₂/kg
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Windows & Glass

Windows (timber/aluminium)

GWP: 35 kg CO₂/m²
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Installations

4 items
Installations

PE Pipes

GWP: 1.89 kg CO₂/kg
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Installations

PVC Pipes

GWP: 2.41 kg CO₂/kg
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Installations

Radon Membrane

GWP: 2.2 kg CO₂/kg
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Installations

Vapour Barrier

GWP: 2 kg CO₂/kg
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Advanced Materials

3 items
Advanced Materials

PCM (Phase Change Material)

GWP: 2.8 kg CO₂/kg
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Advanced Materials

Pressure-Treated Timber

GWP: 0.5 kg CO₂/kg
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Advanced Materials

Solar Panels (PV)

GWP: 500 kg CO₂/kWp
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