GV House / Alventosa Morell Arquitectes
Manufacturers: Badia energiesAnd Fusteria Jaume Olive SLAnd JesseferAnd Metalistria Metcore
Text description provided by the architects. The project is located in a new development of detached houses very close to the Costa Dorada, close to the Mediterranean Sea. This urbanization has nothing special because it follows the criteria of all the last planning in Catalonia where the primary objective is the economic performance of land exploitation. As a result, in order to be able to sell as many plots of land as possible, the resulting plots are very small compared to the building potential allowed by the regulations.
This fact is important because what we end up with are neighborhoods in which monumental buildings predominate: constructions that use buildability and maximum height, very close together, with gardens without natural light due to the shadow created by the house itself or the neighbors.
The basic idea of the neighborhoods created from the Garden House concept ends up skewed and the outdoor space associated with the residence becomes residual and useless to its purpose. In this project, we were able to work in two plots to fully program solution to customer needs in one floor instead of adjacent PB+1 constructions.
This fact allowed us to incorporate outdoor space into the project by designing a perpetually sunny garden. Together with the building, it has created a peaceful and relaxing microclimate isolated from its immediate surroundings. The project consists of two buildings surrounding the garden. The main house is situated on the northern boundary, and on the south boundary is a structure comprising a large motor porch and a complementary flatlet.
The construction is planned in two phases. In the first phase the main house was built. Developed in a ‘U’ shape on the northern boundary, it creates a solid and intimate facade towards the neighbours, while being open towards the south to interact with the garden and future building. In terms of organisation, the “U” shape also allows us to separate the two side wings where we put the night programme. The parents’ area is located in the west wing and the children’s area is in the east wing.
The day space, where we find the kitchen, living room and dining room, connects the two side wings. It is a daytime space designed to respect the family’s desire to enjoy the radiation/sunlight during all hours of the day and all days of the year. At the same time, it also aims to be an extension of the outdoor space, the garden. For these reasons, we have created a cover, the butterfly roof, which folds and generates skylights to the east and west, while in the north and south we open the space with large openings down to the ground in order to remove the boundary between interior and exterior.
With regard to reducing carbon dioxide emissions associated with construction and the useful life of this home, the following strategies have been used. Bioclimatic strategies and useful life of the building: South facing solar capture with integrated solar protection systems (terrace and adjustable blinds). Inertia through the ceramic brick structure and continuous concrete pavement. Thermal mass is an indispensable component of temperature reduction in warm and humid climates near the sea. High performance thermal enclosure: Facade finished with SATE U=0.24 W/m2K and wood frame cladding U=0.16 W/m2K. Controlled cross ventilation. Energy production system from photovoltaic panels integrated in the roof.
Strategies to reduce environmental impact: Wood as a major component of roofing, windows, interior linings, and facade finishes. Walls made of ceramic tiles fired with biomass. All of these strategies allowed us to design a home with low energy demand. This thermal comfort combined with the indoor-outdoor relationship of the house, the constant natural light, the intimacy generated in the face of disproportionate neighboring constructions, have all made us able to create a comfortable home for a pleasant departure every day.
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