How do I model the End-of-life stage for my product?
The requirements for including the End-of-life (EOL) stage are defined in the Product Category Rules (PCR) which your EPD follows. If it is not mandatory, you can decide whether or not to include EOL.
If you are including it, here are some tips to help:
1. De-construction, demolition - C1
In C1, you should consider the used product after its service life. Often it is the same product as the declared product itself, however, there are exceptions. For example, if the declared product is installed by using any kind of mortar, during demolition phase you will obtain this end-of-life product with the mortar too. In this case you should consider the mortar as well with the declared product. Or if the declared product loses weight during use for example, you should consider less than the declared product in C1.
An assumption may be made that deconstruction energy is very small, so it may be omitted.
2. Transport to waste processing - C2
The total weight of the end of life product should be entered here.
3. Waste processing for reuse, recovery and/or recycling - C3
The reused, recovered and/or recycled components should be specified under C3. Considering the market where the product is used, you can take advantage of articles or similar publications containing recycling rates. You can determine according to the publications how the components of the product are converted.
4. Disposal - C4
The remaining components and waste from C3 will be landfill waste and should be specified under C4.
For a single product, the sum of C3 + C4 is generally equal to the weight given in C2, however, there are some exceptions.
5. Reuse, recovery and/or recycling potentials - D
In module D, benefits such as produced energy or reproduced material should be specified.
Related Articles
End of life scenarios for building products
End of life scenario C1 - C2 emissions One Click LCA's calculation method for End-of-life scenario C1 (Deconstruction/demolition) and C2 (Transport) are based on default values for demolition and transport. Please note that the C1/C2 emissions are ...How do I add an EPD to your database?
Step 1: First search for the EPD in the One Click LCA database. Before you submit a request for an EPD to be added to the database, please check if it is not already present. 1. Search for the name of the product If the product has a particular name ...What is an EPD?
An Environmental Product Declaration (EPD) is essentially an externally verified and standardized description of the environmental profile of any product or material over its lifetime. If you are a construction engineer or an architect, you can ...Service life of materials
A product’s service life is its period of use in service. Service life is necessary to calculate replacement impacts of the construction material, within the calculation period. LCA and LCC use normally the service life of a building as a calculation ...User-adjustable End of Life modelling options
What does this feature do? One Click LCA offers adjustable End of Life modeling capabilities. The purpose of this change is to provide users more choices to consider the impacts of the End of Life options used on a project. Note that the new EOL ...