Fuji House is a detached house at 40 km from Madrid designed according to the criteria of bioclimatic architecture. A prototype for a future series of beautiful and sustainable development. Having established the basic objectives as a minimum environmental impact and maximum reproducibility of the structure, the whole design was created using cutting-edge technical solutions and plants but standardized. Certified materials were used, taking into account the processes of production and their recyclability. These choices are still possible to contain costs within the threshold of 1,200 Euros a square.
A compact plant
The building is built on two levels with kitchen, living area, bathroom and laundry room on the ground floor on the first floor are the bedrooms instead, a living room and other services. The house has a rectangular and very compact. In this way, areas that can disperse heat in winter and in summer can allow the passage, and then reduce to a minimum. To get the most benefit from exposure to sunlight, the major axis of the house is oriented along the east-west direction, with more sides exposed to the south and north (65% of the total number of pages). The four sides that define the perimeter of the structure are designed in different ways: the south-facing facade is transparent to maximize the heat input of solar energy, while the North can be considered closed, except for some openings to ventilate the environments. The east elevation has openings that allow you to manage the transition of natural light, while the West is virtually free.
Certified wood frame
the choice of building materials was carried out taking into account the environmental impacts throughout the life cycle of the same, from production to disposal. The structure is made of PEFC certified wood. The masses are made of brick masonry acoustic clay, and have variable thickness as a function of the facade on which they are employed. The maximum thickness of the walls (29 cm) is reached in the north-facing facade; the minimum (14 cm) is at the front facing south, where the walls are placed behind bioclimatic greenhouses. The materials for the insulation of the walls are all natural and include panels of wood and cellulose fibers. For the isolation of the roof panels were used in wood fiber made from scraps. The windows are of the type with double glazing, aluminum frame with thermal break. This combination reduces by 70% and winter heat losses by 40% inputs of summer heat.
Uses the greenhouse effect
In line with the principles of passive house, one of the prerogatives of the Fuji House project was the maximum use of natural solar radiation. It features a series of architectural and technological solutions in order to obtain calibrated heat and natural light, preventing glare due to reflection of light on the internal surfaces of the house and the overheating of the rooms. The large windows facing south, in addition to being equipped with selective glasses are protected by a shield made of aluminum slats. The system of solar greenhouses, with the exception of the solar dryer adjacent to the laundry room is made on the first floor along the south-facing facade this system allows the storage of heat (greenhouse) during the winter. Heat is transferred through convective exchange with the adjoining rooms, by setting up special air intakes located along the interior walls. The greenhouses also contribute to cooling during the summer thanks to the opening to the outside (closed in winter), which eliminate the hot air in excess. The functioning of solar greenhouses is automated, and is adjusted based on temperature sensors, which determine the initiation of ventilation.
Low consumption
the heating system includes the use of nine solar panels, both for hot water services, to cover a portion of the heating requirements of environments. A integration of solar collectors installed a high efficiency condensing boiler with an integrated cooler, which not only produce heat also has the function of summer cooling. All this is combined with a radiant floor system at low temperature. Overall, this system allows for very low consumption, valued at about seven square meters on kWh per year.
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