Evolution of Energy Efficiency of Buildings Using the Guidelines of the European Green Deal Plan

In contemporary literature, there are not many analyses taking into account changing heat transfer coefficients
over the years and examining and comparing the variability of insulation thickness in different thermal standards.
The article presents the evolution of energy demand taking into account the requirements of the Green Deal. The
analysis was carried out using two materials, showing how their thickness changed in relation to the evolving
energy requirements. The research was illustrated with an example of thermal modernization for a building in
specific time periods. The analysis was carried out using a numerical program, comparing warming variants for
individual years using the Index of annual primary energy demand. Following the requirements contained in the
EPDB directive, a comprehensive reduction of the penetration coefficients for building partitions was proposed
and requirements for the mandatory use of mechanical ventilation and photovoltaics were introduced