LAMBTON DOORS ArchCat V14 Spt 2019

Contribution of the life cycle stages The contribution of life cycle stages to total environmental impacts is presented in Figure 4.

100%

1. Raw materials acquisition 2. Product manufacturing 3. Packaging 4. Distribution 5. Use 6. End-of-life Raw materials acquisition Product manufacturing Packaging Disitribution Use End-of-life

80%

60%

40%

20%

0%

Ozone depletion

Smog

Global warming

Acidification Eutrophication

Figure 4 : Contribution of life cycle stages to total environmental impacts for 5-FSLSL-EME/ ECE/EBE, 5-UFLSL-EME/ECE/EBE, 5-FSSCL45-EME/ECE/EBE, and 5-UFSCL45-EME/ECE/EBE. Raw materials acquisition is responsible for more than 60% of the impacts in four (4) impact categories. End-of-life is responsible for nearly 80% of the impact on eutrophication. The impact on GWP, does not take into account the GWP credit due to the carbon sequestration in wood products: only GHG emissions emitted during the product life cycle are represented, which corresponds to an impact of 124 kg CO 2 eq. Figure 5 and Figure 6 present the energy consumption from both doors life cycle stages. Raw materials acquisition is the most energy-consuming stage (> 60%), regardless of energy source. Figure 7 shows that 53% of the energy demand, for all four doors, comes from renewable sources. Finally, raw materials acquisition is responsible for circa 94% of life-cycle water intake, as shown in Figure 8.

100%

1. Raw materials acquisition 2. Product manufacturing 3. Packaging 4. Distribution 5. Use 6. End-of-life Raw materials acquisition Prod ct manufacturing Packaging Disitribution Use End-of-life

80%

60%

40%

20%

0%

NRR - Fossil

NRR - Nuclear

RR - Biomass

RR - Other renewables

Figure 5 : Contribution of life cycle stages to the energy demand for 5-FSLSL-EME/ECE, 5-UFLSL-EME/ECE, 5-FSSCL45-EME/ECE, and 5-UFSCL45-EME/ECE doors. Abbreviations “NRR” stands for non-renewable resources and “RR” stands for renewable resources.

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