Construction of a residential complex
© 2023 Paolo Bandini Architect
Location: Legnano (MI)
Client: Codelfa S.p.A. / Erif One s.r.l.
Job: Project for the construction of a residential and commercial complex
Date: 2010 - 2011
Amount of works: € 18,000,000
Project: Feasibility study
Category (table z-1): E-06
The project consists of a building with a well-defined geometric structure, characterized by a continuous crystal facade. The two underground floors have been designed to hold about 100 cars per floor. The basement contains, on the ground floor, commercial spaces that can be used for shops and service activities to the residence. The first and second floors are intended to accommodate offices, consisting of large open spaces, equipped with all the most modern plant technologies and divisible according to the customer's needs. The completely transparent façade is made with triple glazed windows, with an external solar shading system consisting of motorized blinds, controlled by a computerized system. Above the offices, the residential portion develops. Eight floors in total, consisting of apartments of various sizes. Going upwards, we find larger apartments, equipped with large loggias on all sides, similar to terraces, useful for sunbathing and for being outdoors and for enjoying the beautiful view of the landscape. On the flat roof, about 500 square meters of solar and photovoltaic panels have been placed on a special support structure. The terrace below is divided into private gardens of the penthouses. The entire facade of the residential part is covered with crystal panels to emphasize the slenderness and transparency of the building. The garden surrounding the building is a private place for a summer swimming pool and children's games.
Area of the area: 12,227 square meters | Total built area: 9,480 sq m | Commercial area: 900 sq.m. Office area: 2500 sq.m. Residential area: 6080 sqm | Total built volume: 35,000 m3 | Total height: 45 mt
Plant philosophy: The design of systems for buildings for residential, tertiary, commercial and / or hospitality use must consider the following essential aspects: - Identification of the optimal solutions for the production and distribution of primary energies (electricity, heat transfer fluids); - Proposals for internal plant solutions to the environments designed to ensure the design conditions by combining them with the comfort of the occupants and the functionality required by each intended use. The guiding principle in the development of the project of these buildings consists in the search for innovative solutions that through a pushed integration between building and systems allows the achievement of the project requirements while minimizing the environmental impact of the work in full compliance with the comfort of the occupants; among the many we mention by way of example:
- Systems for recovering the energy of the air expelled from the air-conditioned rooms by exchange of sensible and latent heat (enthalpy recovery) with the external air introduced; Distribution of the heat transfer fluids to the users (air handling units and room terminals) by means of variable flow electric pumps; Air-conditioning systems mainly of the mixed air / water type, with primary air treated centrally (possibly introduced to the floor with a displacement system) and hydronic terminals of the radiant / convective or inductive type (chilled beams) to meet the sensitive loads in the environment, with containment costs (external air flow limited to hygienic exchange only), simplicity of operation, dimensions, maintenance and thermal comfort compared to traditional all-air systems or with fan coils;
- Control systems of the external air introduced according to the actual crowding by means of air quality probes (reduction of the cooling load of the external air);
- Multi-zone dimming artificial lighting control systems for energy saving through integration with natural light;
- Solar radiation attenuation systems;
- Use of lighting fixtures with low energy consumption lamps (LFC) in indoor environments and high-performance lamps for lighting outdoor areas; - Possible water condensation on refrigeration units - references / heat pumps to increase the performance of the machines compared to traditional air condensation, also resorting, if possible, to free geothermal sources (ground water);
- Maximization of the integration of renewable source systems in the building envelope to bring the building as close as possible to energy autonomy (green building); - Passive cooling systems (natural night ventilation correlated with the phase shift imposed in the design phase to the thermal inertia of the external cladding packages; ventilated facades at least on high irradiation exposures; windows equipped with glasses with adequate thermal properties); - Building Management System able to integrate in a single interface all the building management functions (HVAC, light and driving force, safety, etc.) ensuring the switching on and off of the various systems, signaling faults and anomalous situations, scheduling of maintenance interventions, etc.
1) Evergreen trees cool the air and create shade in the summer. During the winter they shelter from the cold winds.
2) By means of the evaporative process, the Vegetation helps to cool the air and filter the light.
3) Rainwater collection and recycling system. The water is collected in a tank, filtered and reused for irrigation and for domestic drains.
4) Thin film CIS photovoltaic panels.
5) The inclination of the summer sun rays is intercepted by the horizontal louvers and by the overhangs that allow you to shield the facade facing south-east and west from the sun in the warm months without blocking the view to the outside. Thermal break windows with selective glass reduce thermal gains.
6) Introduction of fresh air into the rooms by pressure difference. Generation of natural cross ventilation thanks to the presence of windows placed on opposite sides.
7) Radiant floor panels.
8) Leafless trees. During the summer they cool the air and create shade. During the winter they allow sunlight to filter through the branches and warm southwest wind to gain access. 9) The lower inclination of the winter sun rays allows natural lighting of the rooms and guarantees active thermal gain by radiation.
The sustainability of the intervention will be further supported through the adoption of the most mature technologies for the self-production of energy from renewable sources, namely:
- Thermal solar panels for the production and storage of domestic hot water;
- Monocrystalline silicon photovoltaic panels installed on roofs or, alternatively, amorphous silicon film on the facades for the self-production of electricity.