Energy retrofitting and social housing instrumentation attending passive criteria. Case study in winter

Abstract

This paper analyzes the conditions of interior comfort in passive houses in winter, depending on the daily variation of indoor air temperature under sealed envelope conditions. Shows, based on data obtained by real-time instrumentation of the rehabilitated housing, that is possible to achieve comfort conditions compatible with energy poverty situations in winter, without active cooling systems. Proposes the adaptation of passivhaus standard for energy rehabilitation of existing buildings, focusing actions on improving the quality and continuity of the thermal envelope, minimizing air infiltration and ensuring indoor air quality by installing an air ventilation system with double flow heat recovery.