news

22.11.2013

Forthcoming development of detached Class A+ villa

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One of the coming developments for 2014 will involve the construction of a detached class A+ wooden villa in Sassoferrato, province of Ancona. The building will be delivered by our company with a turnkey solution.

Aspects relating to type and dimensions
The project entails the development of a homogeneous building comprising one floor above ground and one semi-basement floor, a sloping roof and a large portico. The rooms of the above-ground floor are to be used as housing and comprise a large dining/living room extending outside the portico, kitchen, hall and a separate night area with three bedrooms and two bathrooms. The hall has a stairway leading down to the semi-basement floor where the garage, laundry room and boiler room are situated. The restructured building has a volume of 593.30 m3 and a maximum height of the fronts of 5.70 linear metres.

Bioclimatic aspects
From a bioclimatic viewpoint, it develops longitudinally near the south boundary with the views and entrances mainly on the north side, where most of the lot is also located, thereby privileging the panoramic aspect of the views to the detriment of a perhaps not optimal bioclimatic exposure. This penalisation is, however, overcome by envisaging a very well insulated building with double faces for the most important rooms (view north, light and warmth south). The building openings are located in positions able to ensure maximum efficiency of longitudinal and transversal ventilation. This will enable optimal summer cooling, enabling a provision for systems for winter heating only.

Structural aspects and thermal insulation
The semi-basement floor will be built from reinforced concrete. The above-ground floor will be built entirely with a wooden structure, with a view to minimising weight and holding the foundation structures, but above all to achieve a completely natural construction that is ecological and very well insulated indeed. A wooden framed structure is therefore envisaged (Platform Frame type), with a roof that does not overhang in wooden beams and planks. Insulation is achieved inside the structure with rock wool and outside with cladding in mechanically-fixed mineralised wood panels. The insulating cladding continues with polystyrene to also clad the semi-basement floor in reinforced concrete for the rooms heated against the earth.

The class A+ home, thermal system, renewable energy sources, energy class
The methane gas pipe line does not reach the site. In a bid to achieve maximum energy efficiency, the building is equipped with a radiating floor heating system powered by air-water electric heat pumps. To contribute towards the energy needs using renewable energy sources, the building is equipped with a photovoltaic plant on the pitch exposed to the south (where it is most concealed from view) for a surface area of 40 m2 and presumed power of 4 KW The contribution made by the photovoltaic plant in addition to the heating plant and, above all, the major insulation of the cladding with the elimination of the thermal bridges, gives the building an energy performance (Epi=27.22 KWh/m2) that is less than 25% of the legal limit, thereby corresponding to class A+ (see rel L.10).

Designers:
LANDO PIERAGOSTINI sustainable architecture firm
Arch. Lando Pieragostini
Ing. Diego Federici
with the collaboration of: ing. Marina Poiani

Structural design:
Ing. Sandro Massi, Sassoferrato AN

Systems design and energy qualification:
Ing. Gianluca Serpilli, Ancona

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