G-01 Goal definition for building and product LCA

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, … Continue reading

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

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 … Continue reading

G-03 Future technical developments and innovation

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 … Continue reading

G-04 Comparative assertion for building or product LCA

Aspect G-04 Comparative assertion for building or product LCA Description Comparative assertion is an environmental claim regarding the superiority or equivalence of one building product (or one building design) compared with a competing building product (or an alternative building design) … Continue reading

G-05 Scope definition for building and product LCA

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 … Continue reading

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

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 … Continue reading

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

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 … Continue reading

G-07 (Buildings) / G-08 (Products) Functional equivalent vs. functional unit vs. declared unit

Aspect G-07 (Buildings) / G-08 (Products) Functional equivalent vs. functional unit vs. declared unit Description ISO 14040, ISO 14044 and EN 15804 define a functional unit; EN 15804 also defines a declared unit. EN 15978 defines a functional equivalent.What are … Continue reading

G-08 Reference study period

Aspect G-08 Reference study period Description The reference study period (RSP) is defined as the time period for which the time-dependent characteristics of the object under assessment are analysed. The RSP determines the use phase of the assessed building or … Continue reading

G-09 Energy-efficient product definition

Aspect G-09 Energy-efficient product definition Description What is an energy-efficient product, and how it is characterized? related study objective ☒ stand-alone LCA ☒ comparative assertion related study phase ☒ ☐ ☐ ☐ ☐ goal and scope definition inventory analysis (LCI) … Continue reading