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The assessment of energy efficient potential of multilayered envelopes was performed by Multi Criteria Decision Analysis (MCDA) techniques. There were compared eight types of wall assemblies from natural materials: hempcrete, adobe, strawbale panel, earthbag, cordwood, SIP (plywood+ecofiber), hempcrete+straw and energy efficient block. Validation of the best alternative sustainability was calculated by DECERNS MCDA software. Conducted research revealed that the most sensible criteria in weight range of [0.1-0.3] are «cost», «mass» and «u-value». Further analysis of the increasing/decreasing trends in wall assemblies should be conducted to discover the key role of specific criteria weight changing on the priority arrangement of the best wall alternative.

TOPSIS; MCDA methods; weighting method; wall assemblies