Facade Embodied Carbon Calculator
Estimate cradle-to-gate embodied carbon across aluminium, glazing, ACP, silicone, GRC, zinc and louvres — by facade area, one project at a time.
Project details
Set the project name and overall facade area used for benchmarking.
Leave blank to benchmark against the sum of material areas entered below instead.
How this works
Enter the area of each facade material (m²). Aluminium-based materials include a recycled-content slider — higher recycled content lowers the embodied carbon factor. All figures are indicative defaults; replace them with project-specific EPD (Environmental Product Declaration) data whenever available.
Materials by facade area
Default factors shown are typical cradle-to-gate values (kgCO₂e/m²). Edit any factor directly to match your EPD.
Results
Facade elevation, coloured by each material's share of total embodied carbon.
≈ equivalent to driving an average passenger car 49,27,118 km (indicative, 0.17 kgCO₂e/km).
| Material | Area (m²) | Factor (kgCO₂e/m²) | Subtotal (kgCO₂e) | Share |
|---|---|---|---|---|
Glazing | 6,500 | 65.0 | 4,22,500 kgCO₂e | 50.4% |
Aluminium Framing | 2,200 | 136.5 | 3,00,300 kgCO₂e | 35.9% |
Silicone | 6,500 | 8.0 | 52,000 kgCO₂e | 6.2% |
ACP Cladding | 900 | 36.9 | 33,210 kgCO₂e | 4.0% |
Louvres | 400 | 74.0 | 29,600 kgCO₂e | 3.5% |
| Total | 16,500 | — | 8,37,610 kgCO₂e | 100% |
Reference factors & methodology
| Material | Virgin factor | 100% recycled factor | Basis |
|---|---|---|---|
| Aluminium framing | 180 kgCO₂e/m² | 35 kgCO₂e/m² | Extruded mullion/transom system, ~3.5–4mm effective section |
| Glazing (IGU) | 65 kgCO₂e/m² (fixed) | — | Double-glazed unit, low-E coated, standard cavity |
| ACP cladding | 45 kgCO₂e/m² | 18 kgCO₂e/m² | 4mm aluminium composite panel, PE/FR core |
| Silicone | 8 kgCO₂e/m² (fixed) | — | Structural + weather sealant, joint allowance |
| GRC cladding | 35 kgCO₂e/m² (fixed) | — | Glass-fibre reinforced concrete panel, ~25mm |
| Zinc cladding | 40 kgCO₂e/m² | 18 kgCO₂e/m² | Standing-seam / panel system, 0.7mm sheet |
| Louvres | 95 kgCO₂e/m² | 25 kgCO₂e/m² | Aluminium sun-shading fins, structural brackets included |
Figures are indicative cradle-to-gate (A1–A3) values compiled from typical published EPD ranges for facade-grade products and are meant for early-stage comparison, not certification. Recycled-content sliders interpolate linearly between the virgin and 100%-recycled factors shown above — actual reductions depend on alloy, supplier and post-consumer vs post-industrial content. Benchmark bands (Low / Moderate / High) are simplified reference points loosely aligned with published facade embodied-carbon guidance (e.g. LETI, RICS) and should be checked against project-specific targets. Always substitute manufacturer EPD data where available for design-stage or compliance reporting.
Facade Embodied Carbon Calculator — indicative tool for early-stage comparison. Not a substitute for project EPDs or certified LCA reporting.