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General comment The specific data used for LCA were provided by Klinkier Przysucha S.A. (KING KLINKER) and acquired from ITB databases. The generic data were adopted from Ecoinvent databases v.3.8. No specific data selected is older than five years and no generic datasets used are older than ten years. The representativeness, completeness, reliability, and consistency are judged as good.
The data for the processes comes from the following databases: Ecoinvent v.3.8 (raw materials, additives, ancillary materials), specific EPDs (packaging materials).
The allocation rules used for this LCA are based on general ITB PCR A and product mass basis. Production of the brick slips based on white, yellow and red clay is a line process performed in Klinkier Przysucha S.A. (KING KLINKER) manufacturing plant located in Skrzynsko (Poland). All impacts from raw materials extraction and processing are allocated in module A1 of the LCA. Total impacts from the line production of Klinkier Przysucha S.A. (KING KLINKER) were inventoried and allocated to the clinker brick slips production. Water and energy consumption, associated emissions and generated wastes are allocated to module A3. Utilization of packaging material was taken into consideration. Module A2 includes transport of raw materials from their suppliers to Klinkier Przysucha S.A. (KING KLINKER) in Skrzynsko.
The life cycle analysis (LCA) of the declared products covers: product stage – modules A1-A3, end of life – modules C1, C4 and benefits and loads beyond the system boundary – module D (cradleto- gate with options) in accordance with EN 15804+A1 and ITB PCR A. The details of systems limits are provided in the background report. Energy and water consumption, emissions as well as information on generated wastes were inventoried and were included in the calculations. It can be assumed that the total sum of omitted processes does not exceed 5% of all impact categories. In accordance with EN 15804+A1, machines and facilities (capital goods) required for the production as well as transportation of employees were not included in LCA.
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