ABSTRACT
Episodically used single family buildings are inhabited primarily two days a week and on holidays during the year. They are typical for the suburban areas around the European capitals and big cities. They are usually owned by the “upper middle class” families, which have an apartment close to the city center used during the week and a second vacation home in the suburban areas outside of the city. This social group (due to its higher education and forward environmental thinking) is open to the innovative concepts and methods for energy efficiency and preservation of natural energy resources. Their new or old but renovated residences often have systems for automated control of the microclimate, remote or internet control of the heating and ventilation systems. It is important for them to make their new or existing masonry wall single houses energy efficient even in episodic occupancy regime.
