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 not used in every certification tool as often C1/C2 emissions are outside of the scope. One of the reasons for this is that these emissions often cannot be influenced, and are a significantly smaller portion of the total C1-C4 emissions. C1 emissions only consider the fuel consumption of machinery, C2 emissions are based on the removed material mass.End of life scenario C3 - C4 emissions
One Click LCA's calculation method for End-of-life scenario (C3-C4) and benefits and loads scenario (module D) follows EN 15 978 / EN 15804 and follows the categorization and end-of-life scenarios from DGNB international (2014) (p. 21) This does not apply to DGNB DE, DK and International, in which C1-C2, C3-C4 and D information from the EPD is also taken into consideration.Material group | End of life scenario | Materials included | C3 – C4, waste processing and landfilling | D, recycling benefits |
Mineral building materials | Recycling for ground works | Concrete*, Cement*, Bricks, Porcelain, Plaster, Clay products, Stone, Ceramics, Asphalt | C3: Construction waste preparation for recycling | Recycling benefit from replacing the primary gravel |
Metals | Metal preparation and recycling** | Aluminium, Steel, Stainless steel, Galvanized steel, Copper coated, Copper uncoated, Brass, Zinc, Lead | C3: Metal waste preparation | Recycling benefits for replacing virgin metal |
Biobased materials with heating value | Incineration and energy recovery | Wood, Wood products | C3: Construction waste incineration for energy recovery | Recovered energy |
Other materials with heating value | Incineration and energy recovery | Plastics | C3: Construction waste incineration for energy recovery | Recovered energy |
Other materials that can be landfilled in construction waste site | Disposal / landfilling of inert material | Coatings, Synthetic materials, Panels and boards***, Insulating materials***, Glass, Window and façade components*** | Disposal of inert construction waste | - |
* Taking into account concrete carbonatisation
** Recycling potential can only be reported for metals with shares of primary manufacturing, i.e. if a product is made of recycled material, it no longer has recycling potential. 5% of losses is assumed for recycling (the remaining 95% are recycled).
*** When not included to above groups
Related Articles
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 ...Building LCA according to EN 15978
Read about the building LCA methodology from our other articles: Life cycle stages Impact assessment categories Service life of materials Databases incorporated in One Click LCA Standards supported in One Click LCA Impact assessment / ...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 ...Life cycle stages
Building life cycle stages are the different periods of a building’s lifetime. For instance: raw material harvesting, manufacturing of products, use phase of the building, end of life. In the European markets the building life cycle stages are ...Selecting building technology resources
Please note that the energy and water consumption are reported separately and the consumption also includes any impacts of technical choices. So this article is purely about modeling the material related impacts. Availability of building technology / ...