A-17 Accounting of on-site capital goods (e.g. construction ma-chinery, bungalows…)

Aspect A-17 Accounting of on-site capital goods (e.g. construction machinery, bungalows…)
Various capital goods can be found on a construction site, such as construction machinery (skid-steer loaders, bulldozers), cranes, and the bungalows for the workers. These capital goods are generally used by a construction company on different construction projects. In this context, it is important to assess the depreciation of capital goods, and allocate the impacts of their manufacture to a certain amount for one construction site. Should capital goods be included in complete LCA studies? Is there necessarily a deviation from EN 15978?

Related study objective

stand-alone LCA comparative assertion

Related study phase

goal and scope definition inventory analysis (LCI) impact assessment (LCIA) interpretation reporting

Relevant for

new buildings existing buildings building products screening LCA simplified LCA complete LCA
Provisions The capital goods may be included in complete LCA if they are relevant for the goal and scope of the study (e.g. a construction company might have more interest than a building designer in this aspect).The capital goods may be taken into account in screening and simplified LCA using default values, or they may be optional, owing to the lack of data.
Rules from:
EN 15978 Boundary of the on-site processes (Module A5)
9.4.3 Criteria for the exclusion of inputs and outputs
The practitioner should use detailed calculation based on specific data for complete LCA, and refer to the cut-off rules guidance, if relevant.The capital goods may be assessed in screening and simplified LCA by using default values. LCA data can be calculated using LCA data for building products (as a proxy) if no more precise data are available on complete capital goods (e.g. a crane is composed of x% of steel, y%…, etc.) This aspect may be neglected for most construction projects, owing to its minor relevance.

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