Energy Losses in Construction Parameters in Multi-Family Dwellings in Madrid, Spain

Abstract

This paper focuses on the characterization of the residential building stock in the Madrid area. 151 Blower Door Tests have been carried out in multi-family dwellings built in different periods whose execution has been regulated by the UNE-EN 13829 standard. Through its quantification by an n50 value, average values of 5.8 renovations per hour have been obtained; in addition to detecting the main points where air infiltration occurs. These results are intended to lay the groundwork for finding solutions for infiltration, focusing on energy savings. By establishing a relationship between hourly renovations and the energy expenditure of the different dwellings, the amortization of these improvements could be quantified. Many of the results obtained from current dwellings would not comply with the new requirements of the technical building code. In addition, the influence of several construction characteristics on permeability results was assessed.