The

Abstract

Passive architecture has been with us since ancient times. This is clear from the ancient writings that have lasted to this day in which Socrates, for example, defined how to build a Megaon “… in houses facing south, the Sun penetrates through the porch in winter, while in summer the The solar arc described rises above our heads and above the roof, so that there is shadow… ”; o Marco Vitruvio indicated “… if we want our house designs to be correct, we must begin by taking good note of the countries and climates in which they are going to be built…” [1]. With a Passivhaus certified construction, significant reductions in primary energy consumption are achieved (up to 75% in heating and cooling), which have a positive impact on the sustainability of the planet. In the Victoria single-family home, located in the town of Villaviciosa de Odón (Madrid), obtaining the Passivhaus Plus certificate was also established as a requirement, which also limits the consumption of primary energy and requires the generation of photovoltaic energy. The work was carried out with an exhaustive monitoring of the design, execution and completion phase of the work [2]. This implied the control of the infiltrations, the tightness, the placement of the proposed insulation, the elimination of thermal bridges and the aerothermal, ventilation and photovoltaic installations (Figure 1). In addition, the materials used were required to have Passivhaus material approval. The results obtained, regarding the items of the Passivhaus Plus Standard, should not be superior to: Heating demand: maximum 15 kWh / m2 ∙ year. Cooling demand: maximum 15 kWh / m2 ∙ year. Primary energy demand: maximum 120 kWh / m2 ∙ year. Tightness with a pressure differential of 50Pa: maximum 0.60 air renewal / hour. These results were verified through the data entered into the PHPP program during the project and the data entered into the program at the end of the work. The tightness data were also obtained, through the Blowerdoor test, and the energy demand. After analyzing the data, it can be ensured that building under the Passivhaus standard represents an increase over the real budget of approximately 10%. The consumption of this type of dwelling is between 70-75% lower than that of dwellings after the entry into force of the CTE and between 85-90% lower than that of dwellings prior to CTE. Therefore, the initial investment is worth it, not only because of its rapid amortization, but also because of the contribution to the sustainability of the planet, the comfort achieved and the quality of the building that has a direct impact on customer satisfaction.