ABSTRACT

About 87% of the life of a civilized population is spent in a built environment, so it is necessary and convenient to introduce an easy-to-use, quick evaluation process to characterize “naturalness” of building materials. With the help of the parameter “NAT-TECH” (NTgrad) we can try to give a more evident, more feasible tool for the designers, instead of complicated and expensive evaluation software. This is why the “weighted technical-ecological evaluation value” described in more details in this article, which can be deduced from the graphical representation of the “NAT-TECH” (NTgrad) and three other ecological and three relevant technical parameters. If the listed features - suitably - are shown in a web graph, then the area covered by the chart can define by using a single numerical value – “weighted technical-ecological evaluation value” – which material is the most appropriate for the decision maker in the given technical - ecological environment.