Category: Existing buildings
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List of abbreviations
ADP abiotic depletion potential ADPE abiotic resource depletion potential for elements ADPF abiotic resource depletion potential of fossil fuels AP acidification potential BLBSB benefits and loads beyond the system boundary BREEAM BRE Environmental Assessment Method BWR basic work requirements CML Centrum voor Milieukunde, Leiden (NL) CPD Construction Products Directive CPR Construction Products Regulation CRU components…
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Literature
[ADEME 2003] Déconstruire les bâtiments (in French), Collection: Connaître pour Agir: Guides et cahiers techniques, ADEME, 160p, 2003. [AgBB 2010] AgBB. Vorgehensweise bei der gesundheitlichen Bewertung der Emissionen von flüchtigen organischen Verbindungen (VOC und SVOC) aus Bauprodukten, 2010. Available on http://www.umweltbundesamt.de/produkte/bauprodukte/dokumente/AgBB-Bewertungsschema_2010.pdf [Baitz 2002] Baitz, M. ‘Die Bedeutung der funktionsbasierten Charakterisierung von Flächen-Inanspruchnahmen in industriellen Prozesskettenanalysen’.…
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Annex A: Default Values.
When conducting an LCA study, the practitioner is constantly confronted with figures: some are needed to specify a modelling parameter; others are needed as cross-references, or benchmarks for comparison purposes. Such numbers always depend on the context of a study, and are generally not globally valid, which is why this guidance does not specify the…
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Reference Study Period: Buildings.
Following a simplified understanding of a building’s life cycle, the reference study period can be seen as the timespan of use, i.e. the duration of services within Module B. Hence the reference study period has a significant impact on the use stage’s contribution to the life cycle impacts. This means that the reference study period…
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Annex B: Reference values for LCA indicators for buildings
For referencing purposes, typical LCA results may be helpful. These values are typically heavily dependent on the assumptions made, and on the various rules that have been applied to a study. Hence a comparison with such values has to be made with special care. Germany: DGNB In Germany, the DGNB building labelling system defines benchmarks…
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Annex C: List of available references for life cycle impact assessment indicators chosen in EN 15804/EN 15978
This Annex provides the practitioner with the sources of recommended LCIA methods (when they are in agreement with the EN 15804/EN 15978 standards). It also highlights the current inconsistencies between the units of the ILCD-recommended LCIA methods and the units of the EN 15804/EN 15978 standards. The practitioner should notice that while different impact assessment…
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2.4.1. How to commence and proceed with an LCA study
This document yields several distinctions that are relevant for the further procedure to compile an LCA study. The distinctions are given in the decision tree showed in Figure 5. In the first step, both for a building LCA and a product LCA, the decision on the scope of the study has to be made. This…
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2.4.2. LCA study setup: Generic template
After the selection of the study type and the subsequent filtering of aspects, the LCA study is set up according to the general LCA practice as resulting from applying ISO 14040/14044. This process is briefly explained with a generic template of how to set up an LCA study. The individual steps are numbered – note…
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2.4.3. Use of a baseline scenario
Several of the aspects addressed in this guidance define a ‘standard set of parameter values’ for a study, e.g. a default reference study period. This standard set of parameter values is denoted as baseline scenario and provides a basis that allows for comparisons between different studies, e.g. two building LCA studies. The baseline scenario generally…