Recycled / Reused Product Carbon Benefit Tool (BETA)
This tool can be used to get an idea of how much a building's carbon emissions are reduced by using an alternative product. The alterative product could be anything, but this tool is particularly intended for reused products.
Enter the required information into the yellow fields. When done, the results will appear/update in the green fields.
| Building details | ||
| Life cycle stages | ||
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Select the life cycle stages that apply to the building emissions and product emissions factor values. *Indicates that sequestered (biogenic) carbon is excluded. |
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| Building emissions per m2 | kg CO2 eq. / m2 (A1-A5*) | |
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Enter the carbon emissions of the building per m2. This could be the current modelled result, or the emissions target (e.g. from www.leti.uk). |
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| Floor area | m2 | |
| Enter the floor area of the building. This is used for the per m2 result. |
| Current product details | |||
| Quantity | |||
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Enter the quantity of the product in the building and the unit. The unit is used for the product emissions factor too. |
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| Emissions factor | kg CO2 eq. / kg (A1-A5*) | ||
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Enter the emissions factor of the product. This could be from an EPD or from an embodied carbon database like ICE or from BECD. *Indicates that sequestered (biogenic) carbon is excluded. |
| Alternative product details | |||
| Percent of quantity (above) | % | ||
| Enter the percent of the quantity entered above that could be swapped for the alternative product. E.g. if all of it, enter 100%. | |||
| Emissions compared with current product | % | ||
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Enter the approximate emissions for the alternative product as a percentage of the current product's emissions (above). E.g. if a reused product with minimal processing a nominal value of 5% could be used. |
| Results at building level due to alternative product | ||
| Reduction, total | kg CO2 eq. | |
| Reduction, per m2 | kg CO2 eq. / m2 | |
| Reduction, % of building emissions | % |
Example for raised access floor:-
- Life cycle stages: A1-A3
- Building emissions per m2: 600 kg CO2 eq. per m2 (as a notional target)
- Floor area: 10000 m2
- Quantity: 8000 m2 (i.e. 80% of the GIA)
- Emissions factor: 10 kg CO2 eq. per m2 (as an illustration)
- Percentage of quantity: 100% (i.e. all raised access floors to be reused)
- Emissions compared with current product: 5% (as an illustration)
The result should be a reduction of 7.6 kg CO2 eq. per m2 of floor area and 1.3% of the building target. Is that less or more than you thought!