From Elia to breeam to bre and the performance gap

Following ELIA’s BREEAM certification, , architectesassoc. participated in this BRE research program undertaken to compare ways in which four european countries are tackling / understanding the gap between the expected energy efficiency of homes when designed and their as-built performance. They investigated in each country:
     - the awareness of the construction industry of this issue ;
     - the effect (or not) in the building standards and/or industry practice ;
     - the design assessment models used and their accuracy ;
     - how accuracy of data used in the model is controlled ;

     - how
design complexity of the home is controlled ;
     - how construction quality and skills are assured ;

     - how materials, mechanical and electrical performances are checked ;
     - how the conformity of what is installed to what was specified is verified ;

     - what models for construction testing and verification are applied.
This report shows their results.