Study type: Screening LCA

2.3 Procedure for choosing provisions from both CEN TC 350 standards and the ILCD Handbook

Oct 24, 2012

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in Construction products, Existing buildings, General, New buildings

The ILCD Handbook was written by a panel of scientific researchers and experts in LCA, whereas the CEN TC 350 standards were written by a panel of building stakeholders as well as LCA experts. The level of detail varies considerably between the CEN standards (around 50 pages) and the ILCD Handbook (around 1000 pages in…

2.4.1 Screening LCA

Oct 24, 2012

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Zsoka Gyetvai

in Construction products, Existing buildings, General, New buildings

Purpose A screening LCA study may serve for an initial (quick) overview of the environmental impacts of a building or a product. The challenge is to adapt the LCA methodology and simplify the use of LCA at the early design stage. With a screening LCA, it is not possible to retrieve detailed results on the…

3.1.1 Implementation of the study type definitions

Oct 24, 2012

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by

Zsoka Gyetvai

in Existing buildings, General, New buildings

Table 5 gives specific information about how the three LCA study types (screening, simplified and complete) are currently implemented within the EeBGuide framework. Screening describes the first approach, where most of the information on the building is still very rough (e.g. within the design stage): thus default values of generic assumptions need to be chosen…

3.1.1 Implementation of the study type definitions

Oct 24, 2012

—

by

Zsoka Gyetvai

in Construction products, General

Table 5 gives specific information about how the three LCA study types (screening, simplified and complete) are currently implemented within the EeBGuide framework. Screening describes the first approach, where most of the information on the building is still very rough (e.g. within the design stage): thus default values of generic assumptions need to be chosen…

G-01 Goal definition for building and product LCA

Oct 23, 2012

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Zsoka Gyetvai

in Construction products, Existing buildings, New buildings

Aspect G-01 Goal definition for building and product LCA Description According to ISO 14040-44 and the ILCD Handbook, the goal definition of a study is a key LCA requirement, as it guides all the detailed aspects of the scope definition, which then determine the LCI and LCIA provisions. Special attention should be paid to this…

G-02 Classifying the decision context as situation A, B, and C for building and product LCA

Oct 23, 2012

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Zsoka Gyetvai

in Construction products, Existing buildings, New buildings

Aspect G-02 Classifying the decision context as situation A, B, and C for building and product LCA Description The ILCD Handbook distinguishes between different decision contexts for LCA studies. This distinction is part of the goal and scope definition of an LCA study, and has major implications for further definitions of system boundaries and modelling…

G-03 Future technical developments and innovation

Oct 23, 2012

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Zsoka Gyetvai

in Construction products, Existing buildings, New buildings

Aspect G-03 Future technical developments and innovation Description This aspect includes the possibility of considering the effects of future developments with regard to technologies, materials and end-of-life options (e.g. scenarios on energy recovery, or recycling) within a building LCA. In the current business world, technologies and production techniques are changing rapidly. In contrast, building and…

G-05 Scope definition for building and product LCA

Oct 23, 2012

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Zsoka Gyetvai

in Construction products, Existing buildings, New buildings

Aspect G-05 Scope definition for building and product LCA Description According to [ISO 14040], [ISO 14044], and the ILCD Handbook, the scope definition of a study is the step where the main requirements related to methodology, quality, reporting and review in accordance with the goal of the study (i.e. based on the reasons for the…

G-06 (Buildings) / G-07 (Products) Functional equivalent

Oct 23, 2012

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Zsoka Gyetvai

in Construction products, Existing buildings, New buildings

Aspect G-06 (Buildings) / G-07 (Products) Functional equivalent Description According to [EN 15643-1], the functional equivalent is a representation of the required and quantified functional and/or technical requirement for a building or an assembled system (part of works), which is used as a basis for comparison. Usually, assessments of individual objects form part of the…

G-06 Distinction between the declared unit and the functional unit

Oct 23, 2012

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by

Zsoka Gyetvai

in Construction products

Aspect G-06 Distinction between the declared unit and the functional unit Description The functional unit represents the quantified performance of a product system for use as a reference unit for the LCA study. It is the unit of scale or reference on which the LCA results are based, and relates to the given function of…

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