Category: New buildings
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G-13 (Buildings) / G-12 (Products) Infrastructure machinery and capital equipment for material production, energy, water, waste and transport for screening and simplified LCA
Aspect G-13 (Buildings) / G-12 (Products) Infrastructure machinery and capital equipment for material production, energy, water, waste and transport for screening and simplified LCA Description Different LCA databases and datasets with different boundaries are available. These databases apply different rules for including or excluding infrastructure in LCA datasets (e.g. owing to database policy or cut-off-rules).…
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G-14 (Buildings) / G-13 (Products) Infrastructure machinery and capital equipment for material production, energy, water, waste and transport for complete LCA.
Aspect G-14 (Buildings) / G-13 (Products) Infrastructure machinery and capital equipment for material production, energy, water, waste and transport for complete LCA. Description Various LCA databases and datasets with different boundaries are available. These databases apply different rules on the inclusion or exclusion of infrastructure in LCA datasets (e.g. owing to database policy or cut-off-rules).…
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G-15 (Buildings) / G-14 (Products) Transport of goods in LCA studies
Aspect G-15 (Buildings) / G-14 (Products) Transport of goods in LCA studies Description With globalized supply chains, logistic processes occur throughout the life cycle of every product. The most important ones are transport processes, where several possibilities exist for the activity of carrying goods (e.g. by truck, ship or airplane) for the various life cycle…
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G-16 (Buildings) / G-15 (Products) Accounting for carbon storage/carbon sequestration
Aspect G-16 (Buildings) / G-15 (Products) Accounting for carbon storage/carbon sequestration Description Some products (e.g. wooden products) take up atmospheric carbon dioxide while producing biomass. Concrete- and lime-based products can also take up atmospheric carbon dioxide through recarbonization during the use phase . By using these materials or products, this fixed CO2 is stored during…
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G-17 Differences in background data system boundaries
Aspect G-17 Differences in background data system boundaries Description Currently, practitioners have to deal with various different data sources, such as public or commercial LCI databases, EPDs, literature, etc. All these data have been calculated by applying different rules, and so special attention has to be paid to assessing the consistency of these different sources.…
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G- 18 Allocation case for cement-based materials
Aspect G- 18 Allocation case for cement-based materials Description Increasing numbers of building products are being made of secondary raw materials (SRM), or of generated waste that can be recycled throughout their life cycle. On the one hand, recycling eliminates the need to use virgin raw materials. On the other hand, the new commercial interest…
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G-18 (Buildings) / G-16 (Products) Allocation
Aspect G-18 (Buildings) / G-16 (Products) Allocation Description Normally, LCA studies should focus only on a single product at a time. However, systems under assessment often produce more than one product. The same problem arises when different waste flows are treated collectively in the same process (e.g. incineration). In these situations, the allocation problem arises:…
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G-19 Allocation case: production of renewable energy on-site
Aspect G-19 Allocation case: production of renewable energy on-site Description The production of on-site renewable energy can occur at different time of the day, month and year, and may or may not meet on-site needs. Renewable energy may be consumed on site, or may be exported to the electricity grid or to a heating network,…
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G-20 (Buildings) / G-17 (Products) Allocation case: reuse, recycling and recovery
Aspect G-20 (Buildings) / G-17 (Products) Allocation case: reuse, recycling and recovery Description When the lifespan of a product ends, it can be reused, recycled, or used for recovery in another product system. These recovery operations entail a benefit for the system that yielded them. How to allocate these benefits to the system under study,…
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5.3 Life cycle inventory analysis
5.3 Life cycle inventory analysis G-21 Background databases in LCA studies G-22 Data quality. G-23 Choice of LCI/LCIA datasets for screening LCA. G-24 Choice of LCI/LCIA datasets for simplified LCA. G-25 Choice of LCI/LCIA-datasets for complete LCA. G-26 Use of building physical description data.