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General comment The data selected for LCA originate from ITB-LCI questionnaires completed by Barlinek Inwestycje Sp. z o.o. using the inventory data, ITB and Ecoinvent v. 3.8 databases. No specific data collected 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. Specific electricity mix (based on electricity providers data) was calculated based on Ecoinvent v 3.10. The emission factor calculated for electricity is 0.062 kg CO2/kWh.
The allocation rules used for this EPD are based on general ITB-PCR A. 3-layer wooden floorboard production is a line process with multiple co-products in one factory located in Barlinek (Poland). Allocation is done on product mass basis. All impacts from raw materials extraction and processing are allocated in A1 module of EPD. 99 % of impacts from line production were inventoried and allocated to all 3-layer wooden floorboard production. Municipal waste and waste water of whole factory were allocated to module A3. Energy supply was inventoried for whole production process. Emissions in Barlinek Inwestycje are measured and were allocated to module A3. Packaging materials were not taken into consideration They are recycled in a closed loop.
The life cycle analysis (LCA) of the declared products covers product stage – modules A1-A5, use stages – modules B1-B7, end of life – modules C1-C4 and benefits and loads beyond the system boundary – module D (Cradle to Grave with module D) in accordance with EN 15804 + A2 and ITB PCR A. The details of systems limits are provided in product technical report. All materials and energy consumption inventoried in factory were included in calculation. Office impacts were also taken into consideration. In the assessment, all significant parameters from gathered production data are considered, i.e. all material used per formulation, utilised thermal energy, internal fuel and electric power consumption, direct production waste, and all available emission measurements. It can be assumed that the total sum of omitted processes does not exceed 5 % of all impact categories. In accordance with EN 15804 + A2, machines and facilities (capital goods) required for the production as well as transportation of employees were not included in LCA.
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