In the field of construction practice, decisions regarding material selection frequently come
down to a choice based on tradition, i.e. recommendations based on the experience of the
engineers hired by an employer as designers, contractors, or energy efficiency engineers.
In the presented research, in addition to the Employer, technical individuals were involved in
the decision-making process. The harmonisation of Employer opinions and those of experts
were obtained through the NGT technique and Delphi based method, due to the fact that different
criteria for a decision could represent a field of interest of an individual participant in the
process. The result was determining the criteria, their strictness, and their weighted effect.
As multi-criteria decision analysis has evolved into a powerful tool that assists decision-makers
in generating "a cut above" choice in resolving specific cases and overcoming certain problems
in the architectural and construction industry, the use of the MCDM method EDAS+ in the
research ensured an exterior wall system ranking that was not influenced by experience or
Without intending to favor any manufacturer of building materials, the research presents eight
exterior wall systems belonging to different categories of core materials, all with individual
features, similarities, and differences.
When compared to otherwise arbitrary estimates or recommendations based on experience
and the most commonly used building materials, the application of multi-criteria decision
analysis in the case of exterior wall system selection for a particular 1938 Belgrade building
generated more relevant selection results.