Internal insulation systems and their assessment for historic buildings by hygrothermal simulation

Abstract

The paper examines possible solutions for the use of internal insulation in listed buildings. Massive thick walls of historic buildings represent large heat losses and the use of thermal insulation materials from the inside is a possible solution to increase the energy efficiency of historic buildings. However, the use of thermal insulation from the interior is accompanied by a number of risks associated with condensation, mould growth and damage to the perimeter structure. It is necessary to perform dynamic simulations to verify the thermal-humidity behaviour of the structure. The article describes materials suitable for the purpose of internal insulation, their advantages and disadvantages and a description of dynamic simulations by which their effects on the thermal-humidity behaviour of the perimeter wall of a historic building are assessed.