Building in Use - Environmental aspects
Lifecycle assessment of the building
One aspect of the clay brick ecobalance project based on lifecycle assessments of clay
brick factories in several countries was the cradle to grave assessment of
clay brick wall constructions. This forms an essential part of the overall lifecycle
assessment of a whole building.
The results of the evaluation of different clay brick wall constructions were:
|Ecological lifecycle assessment|
The graph above depicts the results of an ecological lifecycle assessment of clay brick
wall constructions in terms of GWP (Global Warming Potential) and PEI (Primary Energy
Input) for various fuels and heating systems over a period of 90 years.
In reality the choice of energy (electricity, oil, natural gas, renewable energy such as wood or solar heating and district heating) used for heating or cooling can be much more decisive for the ecological assessment of a building than the type of wall construction.
Note: these results can vary significantly from country to country and will depend on
the prevailing type of power plant and on the availability of district heating from waste
Within the Green Building Challenge Project, evaluation tools have been developed to determine the overall ecological lifecycle assessment of a whole building. These models have been implemented in several countries (e.g. Total Quality certification in Austria). In France the Démarche HQE is used (see Démarche HQE).
The results of the evaluation for clay brick buildings are very positive.
© TBE-Europe 2005