- Building Type : Isolated or semi-detached house
- Construction Year : 2019
- Delivery year : 2020
- Address 1 - street : Calle Francisco de Jaso 12 31100 PUENTE LA REINA, España
- Climate zone : [Csa] Interior Mediterranean - Mild with dry, hot summer.
- Net Floor Area : 230 m2
- Construction/refurbishment cost : 244 829 €
- Cost/m2 : 1064.47 €/m2
Primary energy need :
(Calculation method : RD: 47/2007 )
The construction is located on a plot with a drop of approximately 4 meters, accessing it from the highest part. This condition and the orientation have been essential to design the project, since being a passive house it was necessary to take into account at all times both the solar incidence and the environment. Thus, on the access floor, we place the day spaces, the most public area of the house.
While on the lower floor the rest area is located in a more private area. On this basis, an energy study was carried out to optimize natural resources as much as possible and thus achieve a building with almost zero consumption. That is why on the upper floor we find a characteristic system of larch wood slats, untreated wood and with controlled aging, which not only provides privacy from the outside without removing lighting, but also controls the energy impact on the building. In turn, the large window facing south west acts as a radiator in winter, avoiding overheating of the house in summer with the eaves that protects it.
On the other hand, on the lower floor, with much more privacy given the characteristics of the land, it has larger windows and no passive protections protected by automated blind systems. The result of all these solutions is that of a house that is very opaque from the outside, with a lot of privacy, but very bright on the inside, with controlled views from each space and with a permanent dialogue between inside and outside.
See more details about this projecthttps://www.reverarquitectura.com/viviendapasivaylei
3rd part certified
Jesus Valencia Ardaiz
Structures calculistAgustí&Ozcoidi Estructuras
Other consultancy agencyZurwood
Certification companyEnergiehaus Arquitectos SL
DesignerRever Arquitectura Jesús Valencia Ardaiz
Owner approach of sustainability
The motivation and origin of the project was clear from the beginning: it was essential that the projected house be designed under the passivhaus standard. An environmental perspective in the time in which we live was necessary to achieve both the objectives set and an adequate result.
From the first moment it was already decided to certify it, and finally the objective was satisfied by both parties, both promotion and technical team. It was the first passivhaus certified home of the Rever Arquitectura team.
All the environmental and bioclimatic philosophy, when projecting, had to have a coherence in the language of the construction system without renouncing a quality architecture. That is why a prefabricated wooden construction was chosen. A light framework of pine wood filled with insulation, lined to the outside with more insulation and an installation chamber also filled with insulation make the typical section of the building solve all its needs: insulation, airtightness, structural stability, steps of facilities and aesthetic finish.
The house is located on a residential complex of similar single-family houses. It is on the outskirts of a small town, so the surroundings are full of farm fields and some small hills. In the vicinity, we find some sports services, soccer fields, swimming pools, social meeting areas... which make it a quiet area but at the same time with a lot of life at specific moments.
Land plot area
The house is located on a plot with a steep slope. This makes the exposure of the building is high, so it creates a system of louvers in the weak points that do not penalize the solar contribution but privacy inside, and in the less exposed facades open large windows protected with large eaves. This provides shade in summer and allows the sun to pass through in winter.
The design of the complex, both at the project and construction level, has made it possible to obtain the passivhaus certificate. After almost a year of use, the owners have verified that the house is kept between 21 and 24 degrees (winter and summer, respectively) having used the heating very occasionally. In addition, the photovoltaic panels have made it possible that the low energy demand required can be compensated with the production of these.
The entire construction has been developed with local wood, so that in addition to substantially improving the thermal performance, the carbon footprint is reduced and the almost total prefabrication of the house is possible, which means that the time on site is much shorter and everything is carried out with a more exhaustive control.