"Antonio Brancati" Middle School

  • Building Type : School, college, university
  • Construction Year : 2018
  • Delivery year : 2020
  • Address 1 - street : Lamarmora 61122 PESARO, Italy
  • Climate zone : [Csb] Coastal Mediterranean - Mild with cool, dry summer.

  • Net Floor Area : 2 430 m2
  • Construction/refurbishment cost : 3 175 579 €
  • Cost/m2 : 1306.82 €/m2

Certifications :

  • Primary energy need :
    26.8 kWhpe/m2.year
    (Calculation method : UNI TS 11300 )
Energy consumption
Economical buildingBuilding
< 50A
A
51 à 90B
B
91 à 150C
C
151 à 230D
D
231 à 330E
E
331 à 450F
F
> 450G
G
Energy-intensive building

The new secondary school “Antonio Brancati” in Pesaro (Italy) got three first:

- The highest scoring “Schools” energy environmental certification in Europe;

- The third highest scoring “Schools” energy environmental certification in the world out of 1,733 certifications in LEED system;

- The highest scoring v4 “Schools” certification in the world.

This is a new school built on an abandoned urban area and it has a very important role also in terms of social sustainability, not only as an excellent green building.

Since the beginning, the decision of the municipality was made to reuse the site for a school with zero land consumption by redeveloping the abandoned urban area, and replacing three old army barracks built in 1950 with the new middle-school.

This school building excellence is the result of the ambitious commitment of Pesaro municipality to preserve the environment and tackle climate change. The City of Pesaro has refocused the mandate of local construction on efficiency, sustainability, and responsibility.

In 2017, the City of Pesaro launched a pilot project with the aim of encouraging a holistic approach towards circular economy principles to ensure the building design responds to environmental protection, health and well-being and other social considerations.

The ambition of Pesaro City is to accelerate the transition towards a circular economy, enabling construction firms to use a new system beyond the current outdated ‘take-make-dispose’ model and contribute to mainstreaming the circular economy concept within and outside the city.

Instead of taking a traditional approach to developing works procurement, the city decided to adopt a more circular approach which would be to build a sustainable new school using the current asset.

The intent was to optimise circularity and enhance the use of sustainable building material and technologies, save raw materials, and minimise waste from the construction of the building.

The analysis of not only educational needs but also citizens expectations for use was the central theme: to make the building more circular in terms of its functionality and make sure that it can be used by everyone all day, every day to become a wonderful community space for all the citizens.

The call for tender describes technical specifications and provides measurable requirements against which the tenders can be evaluated. Performance-based criteria describe the expected results and which outputs are mandatory. In the case of this project, two criteria were selected as mandatory: (a) obtaining a nZEB school and (b) providing the environmental energy certification using the LEED certification scheme, achieving at minimum, the LEED Gold certification.

As a result, the tender includes technical specification on energy efficiency, product lifecycle, waste management, water efficiency, with attention paid to internal comfort to create the best indoor environmental conditions for the students and teachers. It is relevant not only the energy consumption reduction but also the indoor quality for the students and staff through acoustics, air quality and thermal comfort requirements. These results are guaranteed by the LEED environmental energy certification made mandatory in the tender notice obtaining the LEED v4BD+C with the score of 88 points.

The project is successful because it achieves the goal of a building that is extraordinary in every sustainable LEED evaluation area and the records achieved are the confirmation of this. The tendering process can be replicated by other municipalities to obtain not only energy efficiency buildings but above all to reduce the buildings’ carbon footprint.

This project provides the first concrete example in mainstreaming circular practices in public procurement. The innovativeness of this project is to take into practice circular principles within the public procurement and ensure that the procedure runs efficiently and obtains the expected results based on environmental and social requirements.

This project also demonstrates that the Green Public Procurement process where environmental requirements are made mandatory within the tendering process using predetermined award criteria is essential for delivering environmental social value, influencing the market towards sustainable materials and products, improving new skills on green jobs.

School requirements achieved: 

Low impact school:

  • construction and demolition waste management, and also waste management during the construction phase;
  • zero land consumption;
  • EPD material labelling.

Waste management:
During all the process 556,630 kg of waste were created and thanks to all material flows monitored 546,378 kg was recycled and recovered achieving a 98% recovered waste. 
The school is also equipped with separate collection bins for paper, metal, plastic and glass.

Architectural design:
The shape and position of the building was studied and orientated to best exploit solar radiation and optimize the free solar gains and natural lighting and shading;

Due to the mooth tone-in-tone colours of the facade, the building is harmonious within the context creating a friendly new space for all the citizens.

Labeling:
LEED Platinum with 88 points – nZEB standard

Comfort for all:

  • Remote and customized temperature
  • both natural and artificial light control
  • high acoustic performance obtained to create the best environment for learning and teaching
  • parking for bicycles, electric charging stations for cars
  • indoor air quality by mechanical filtered ventilation climate system with a CO2 monitoring able to guarantee higher levels of indoor air quality with the air exchange of 5 volumes per hour
  • natural ventilation thanks to opening in the upper window sections

Indoor air quality:
Mechanical filtered ventilation climate system with a CO2 monitoring able to guarantee higher levels of indoor air quality with the air exchange of 5 volumes per hour

Natural ventilation:
Thanks to openings in the upper window sections

Solar control:
Integrated and motorized shutters with sensors for light and overheating control

Green roof:
Made of Mediterranean plants with low water need to moderate the impact of high temperatures, capture storm water, abate pollution, and act as carbon sinks, while enhancing biodiversity

Reused rainwater:
Rainwater collecting tanks for green spaces, and the green roof

Water consumption reduction:
Water consumption has been reduced thanks to taps with aerators that reduce water flow by 50%, and flash-water tanks.

Envelope efficiency:
The ventilated wall made of modular porcelain stoneware avoids overheating, minimize losses, and also reduces the maintenance costs of the facade

Energy Consumption Reduction:
-59,07% considering TEP reduction compared to standard construction (UNI TS 11300 and UNI EN 15193) and - 34,8% reduction of annual costs thanks to:

  • Envelope efficiency: the thermal insulation, the thoroughly study of thermal bridges, the green roof and ventilated wall made of modular porcelain stoneware avoids overheating, minimize losses and reduces also the maintenance costs of the façade
  • the high efficiency heat recovery unit
  • optimized lighting (LED)
  • automatic consumption monitoring control system to make also friendly and easy the use of building

Renewable energy:
Optimal production of electric energy due to the PV panels

  • Photovoltaic installation of 158,40 m2;     
  • n. 96 photovoltaic modules of 300Wph and 1,96 m2 each
  • Photovoltaic power ratings 28,8 Kw continuous current
  • Inverter Solaredge 27,6KW alternate current
  • Not expensive PV system due to the envelope high performance 
  • 113,5 kW heat pump
  • heating system: floor heating and VAV system (variable air volume)
  • cooling system: floor cooling and VAV system (variable air volume)

See more details about this project

 https://www.macrodesignstudio.it/?portfolio=nuova-scuola-secondaria-antonio-brancati-a-pesaro
 https://gbcitalia.org/web/guest/-/a-pesaro-la-prima-scuola-leed-platinum-d-europa
 https://www.ingenio-web.it/29662-risposta-ai-cambiamenti-climatici-della-citta-di-pesaro-la-scuola-brancati-edificio-piu-sostenibile-deuropa
 https://www.ingenio-web.it/29463-primato-europeo-per-la-nuova-scuola-antonio-brancati-di-pesaro-certificata-leed-v4-platino
 https://www.ilsole24ore.com/art/a-pesaro-scuola-certificata-leed-platinum-ADA3lKNB

Data reliability

3rd part certified

Photo credit

Margherita Finamore photo credit
Formula Servizi & Idrotermica Coop (Sunset comunicazioni) video credit

Contractor

    Pesaro Municipality

    Margherita Finamore m.finamore[a]comune.pesaro.pu.it

Construction Manager

    CONSCOOP - CONSORZIO FRA COOPERATIVE DI PRODUZIONE E LAVORO - Formula Servizi - Forlì - Idrotermica Coop - Forlì - SIEM Impianti – Cesena (FC)

    Mirco Valdifiori mircovaldifiori[a]formulaservizi.it - Forlì

Stakeholders

    Construction company

    Idrotermicacoop

    Michele Gardella gardella[a]idrotermicacoop.it

    technical assistant for mechanical plants


    Construction company

    Formulaservizi

    Mirco Valdifiori mircovaldifiori[a]formulaservizi.it

    technical assistant of the construction


    Construction company

    SIEM IMPIANTI

    Michele Meazzini meazzini[a]siemimpianti.it

    technical assistant for eletric plants


    Certification company

    MDS MacroDesignStudio

    Giorgia Lorenzi giorgia.lorenzi[a]macrodesignstudio.it

    LEED-AP


    Contractor representative

    Pesaro Municipality

    Margherita Finamore m.finamore[a]comune.pesaro.pu.it

    Project Manager

Contracting method

Other methods

Owner approach of sustainability

In 2017, the City of Pesaro launched a pilot project with the aim of encouraging a holistic approach towards circular economy principles to ensure the building design responds to environmental protection, health and well-being and other social considerations.  The ambition of Pesaro City is to accelerate the transition towards a circular economy, enabling construction firms to use a new system beyond the current outdated ‘take-make-dispose’ model and contribute to mainstreaming the circular economy concept within and outside the city. Instead of taking a traditional approach to developing works procurement, the city decided to adopt a more circular approach which would be to build a sustainable new school using the current asset.

The ecological footprint of the building was at the centre of attention since the design phase and improved in the tender process to increase the building adaptability, durability, and resilience in accordance with the circular economy principles.

The intent was to optimise circularity and enhance the use of sustainable building materials and technologies, save raw materials, and minimise waste from the construction of the building. The analysis of not only educational needs but also citizens expectations for use was the central theme: to make the building more circular in terms of its functionality and make sure that it can be used by everyone all day, every day to become a wonderful community space for all the citizens.

The environmental impacts were improved by the tendering process to build a low energy concept school using good design to support not only passive heating and cooling technologies, but relevant active mechanisms as needed. Moreover, considering how green requirements will affect the procurement process for works and implementing them in line with the legal obligation, materials and methods of production and provision are considered when defining appropriate selection criteria. As a result, the tender includes technical specification on energy efficiency, product lifecycle, waste management, water efficiency with attention paid to internal comfort to create the best indoor environmental conditions for the students and teachers. These results are guaranteed by the environmental energy certification made mandatory in the tender notice and measured in accordance with the Minimum Environmental Criteria (MEC).

Architectural description

The project consists of replacing three old army barracks built in 1950 with the new middle-school located in a green abandoned area surrounded by a very densified neighbourhood of Pantano, near the city center of Pesaro. The decision of the municipality was made to reuse the site for a school with zero land consumption by redeveloping the abandoned urban area.

The program includes in addition to the construction of the school also the construction of a new gym at the service of the nearby elementary school. The plans of the school-gym are in progress. 

With a gross surface area of approximately 2430 m², the school will accommodate some 375 students in 15 classrooms and 6 classrooms for special activities and one for music, a teacher meeting room, a canteen, multipurpose spaces, and a library also open to the local residents.

Since not all the stundents of the school use the canteen, it is also at the service of the primary nearby school. The canteen is planned to suit the needs of the families.

Even though it is strictly speaking a school building, the municipality aims to reach further and optimise circularity, so it is designed to act as a catalyst for the whole neighbourhood and its residents.

The analysis of not only educational needs but also citizens expectations for use was the central theme: to make the building more circular in terms of its functionality and make sure that it can be used by everyone all day, every day. To respond to this need, the entrance is a big hall to encourage circulation and interaction with others, so people can, meet others and stay to chat. The big hall has been planned as a mixed-use space that can be used like a conference hall by teachers and citizens. The design of the circulation pattern itself encourages people to sit down and use the circulation space.

The structure of the building is composed with reinforced concrete supporting partitions needed for the development of the double height space entrance hall and with the timber structure for the roof to contribute at achieving low environmental impact.

The classrooms are all located on the ground floor and the first floor and are visually linked together thanks to the glass walls, and the broad and bright corridors are designed to trigger spontaneous encounters and joint teaching and learning moments throughout the day.

By opting for a compact volume, the design was managed to minimalize the footprint and avoided further densification of the neighbourhood by simultaneously providing more than ample outdoor playground for the children with sport facilities.

When planning the building, relevance is given to thermo-hygrometric comfort, acoustic comfort, correct use of natural and artificial light, optimisation of the building envelope to maximise free benefits of the sun, appropriate use of water, choice of materials, use of appropriate technologies to maximize the energy performance with adjustable solar shading and green roof designed not only to insulate but also to mitigate water use and the heat island effect. All these features were part of the requirements for tender, so the construction firms had to respond to these criteria as part of the bidding process.

The coloured façade of the building is composed of a modular system of porcelain stoneware and finished with earthy colours introduces a smoothly playful dash of colour in the streetscape. The characteristic colour provides a strong and recognizable identity and establishes the school as a playful, eye-catching beacon for this vibrant neighbourhood.

If you had to do it again?

I would study better the impacts of the materials to prove the circularity of the building, as if it was a bank of materials.
I would improve the eco-design and the use of bio-based materials to assure that the building would be dismantled as much as possible, to maximize the quantity of re-usable materials.
I would also improve the use of light structure assembly technology to have a clean and environmental friendly construction site.

Building users opinion

Users are generally very satisfied. Four categories are considered: the point of view of the teachers, the students, the school assistants, and the parents.
A campaign to collect data is already planned. It should consists of individual reports and interviews, but due to the present COVID-19 situation, it hasn't started yet.
All users appreciate the brightness of the natural and artificial light as desired, the acoustic comfort due to the absence of background noise in the classrooms or any noise disturbance from outdoor, the thermal comfort which is tailor-made in every classroom thanks to the sensors, and the view of the park surrounding the school.
The students appreciate very much the glass walls of the classes that allow them to see the other classes, thus generating a sense of community.
What users especially liked the most, particularly the parents, is the indoor air quality (especially considering the present COVID-19 situation) thanks to the mechanical filtered ventilation climate system, with a CO2 monitor, able to guarantee higher levels of indoor air quality, reducing the risk of contagion.
The general opinion is that this school creates an environment friendly spaces where students can be educated on sustainability, aware of being part of a community, and can understand how important the relationship between the human being and the environment is.

Energy consumption

  • 26,80 kWhpe/m2.year
  • 55,10 kWhpe/m2.year
  • UNI TS 11300

  • 60,76 kWhfe/m2.year
  • Energy consumption for Heating: 15.54 kWH/M2.YEAR;
    Energy consumption for Hot water: 0.89 kWH/M2.YEAR;
    Energy consumption for Cooling: 9.57 kWH/M2.YEAR;
    Energy consumption for Ventilation: 18.84 kWH/M2.YEAR;
    Energy consumption for Lighting: 15.58 kWH/M2.YEAR;
    Energy consumption for Lift: 0.25 kWH/M2.YEAR

    The school has been operational since the beginning of the school year, 17th Sept. 2020. The real consumptions and performances have been monitored by the Department of Industrial Engineering DIN (University of Bologna) for 4 years to check all the comfort data. At the moment the monitoring is in progress. A blower door test has been realized to assure the effectiveness of the envelope.

Envelope performance

  • 0,22 W.m-2.K-1
  • Wall1: outer wall M1 (area=197 m2) U=0.127 W.m-2.K-1; Ms=273 kg m-2; YIE=0.001 W.m-2.K-12: outer wall M2 (area=371 m2) U=0.163 W.m-2.K-1; Ms=736. kg m-2; YIE=0.008 W.m-2.K-13: outer wall M6 (area=296 m2) U=0.128 W.m-2.K-1; Ms=273. kg m-2; YIE=0.001 W.m-2.K-14: outer wall M7 (area=238 m2) U=0.164 W.m-2.K-1; Ms=273. kg m-2; YIE=0.001 W.m-2.K-15: floor P1 (area=1118 m2) U=0.117 W.m-2.K-1; Ms=163. kg m-2; YIE=0.073 W.m-2.K-16: green roof S7 (area=1116 m2) U=0.125 W.m-2.K-1; Ms=127. kg m-2; YIE=0.021 W.m-2.K-17: shed roof S9 (area=103 m2) U=0.133 W.m-2.K-1; Ms=63. kg m-2; YIE=0.043 W.m-2.K-1; WindowsSolar factor (EN 410): 50%W1 (area=241 m2) Uw=0,795 W.m-2.K-1 Ug=0,600 W.m-2.K-1; W10 (area=24.7 m2) Uw=0,766 W.m-2.K-1 Ug=0,600 W.m-2.K-1; W11 (area=25.6 m2) Uw=0,836 W.m-2.K-1 Ug=0,500 W.m-2.K-1; W12 (area=5.12 m2) Uw=0,836 W.m-2.K-1 Ug=0,500 W.m-2.K-1; W2 (area=4.2 m2) Uw=0,812 W.m-2.K-1 Ug=0,600 W.m-2.K-1; W3 (area=16.8 m2) Uw=0,788 W.m-2.K-1 Ug=0,600 W.m-2.K-1; W4 (area=6 m2) Uw=0,808 W.m-2.K-1 Ug=0,600 W.m-2.K-1; W5 (area=10.8 m2) Uw=0,818 W.m-2.K-1 Ug=0,600 W.m-2.K-1; W6 (area=3.23 m2) Uw=0,837 W.m-2.K-1 Ug=0,600 W.m-2.K-1; W7 (area=4.3 m2) Uw=0,797 W.m-2.K-1 Ug=0,600 W.m-2.K-1

  • 0,38
  • EN 13829 - n50 » (en 1/h-1)

  • 2,26
  • The school is equipped with a Class A building automation according to UNI EN 15232.

    The system allows remote maintenance to be performed easily, and all the users (especially the teachers) are very satisfied about this friendly system.

     

Systems

    • Condensing gas boiler
    • Heat pump
    • Low temperature floor heating
    • VAV System
    • Heat pump
    • Reversible heat pump
    • VAV Syst. (Variable Air Volume system)
    • Floor cooling
    • Double flow heat exchanger
    • Solar photovoltaic
    • Heat pump
  • 57,00 %
  • The air networks branch off to all the spaces with the presence of people (normal and special classrooms, library, teachers' room and presidency, canteen, etc.), so that students and staff always have constantly renewed air and high quality.

    The only UTA (delivery and recovery: 15,000 m3/h) has EC plug fan fans (head: 300 Pa delivery; 200 Pa recovery), F8 filters (renewal air) and M5 (expulsion), plus a promiscuous battery for heating and cooling. The ridges run through the suspended ceilings of the corridors and branch off towards the individual rooms (maximum airspeed: 6,5 m/s for the main ducts; 4,5 m/s for the distributions). Instead of using galvanized sheet metal for the distribution channels, those installed are made with sandwich panels composed of :
    - rigid foam of polyurethane foam as a structural element,
    - coating on both sides with zeolite-treated aluminum foil to be antimicrobial.

    The nanostructured coating returns a surface in contact with the extremely smooth air that, also thanks to the absence of sharp edges, giving the channels self-cleaning property, thus reducing the need for cleaning of the channels.

    Also to the benefit of air quality, the surfaces of flexible ducts are treated with the technology effective against 600 strains of micro-organisms and certified for the reduction of the proliferation of pathogens. The plenums are equipped with linear vents (2 of discharge and 1 of recovery, for each classroom or large room, in order to contain noise emissions), installed on the wall or in special lowered ceilings inside some rooms.

    The exhaust air extraction system from the toilets has also been extended to the service rooms (warehouses, cleaning).

    The mechanical ventilation and heat recovery system optimize energy performance, with an improvement of 42% of the performance of the building compared to the reference project. The design of the ventilation system has been carried out with a BIM system, in order to solve in advance any interference.

    A thermal generator with a backup function of the heat pump with a 150 kwt boiler (T sent 40°C) with modulating burner has been installed. It provides complete backup for the winter period, allowing not only to support the operation of the heat pump in periods of low outside temperatures, but also to face the entire thermal demand of the building.

    The increase in power is also accompanied by an increase in efficiency, from 104.6 (50 to 30 °C) to 109.4 (40 to 30°C) and numerous other advantages, including:
    - low start-up emissions due to modulating burner and high-water content of circuits,
    - minimum climate-altering and polluting emissions from the surface burner;
    - increase in thermal recovery from condensation (up to 6%);
    - rapid adjustment of operating times;
    - simplification of the methane distribution system, with a consequent reduction in safety risks;
    - high thermal comfort thanks to the detection of external temperature and solar radiation (by weather forecast);
    - control of management costs;
    - low maintenance costs due to low emission combustion and self-cleaning Al/Fe heat exchanger.

    The installation of the most powerful boiler did not involve changes to the layout of the technology plant, nor to the layout of the fluid distribution networks that, before reaching the terminals in the environment, are stored in an inertial accumulation (1,000 l). This has also reduced the consumption of electricity by the circulation groups, due to the high-water content of the circuits. The production of the ACS is entrusted to a boiler-type heat pump with double coil, integrated in its storage tank (295 l). There are also devices for water softening and dosage of polyphosphate salts and legionella disinfectants.

    The air conditioning system consists of:
    - heat-cooled main heat pump generator, installed on the roof, with an additional methane boiler located in the technology plant;
    - thermostatic storage upstream of the fluid distribution networks, which supply the radiant floors and the primary air plant with heat recovery.

    The renewable energy system installed has a decisive impact on the performance and overall quality of the services provided. It is installed an air/water high-efficiency reversible heat pump, with powers equal to 135 kwt (water to the condenser at 30 to 35°C and external air at 7°C b.s., that is 6°C b.u.) and 113.5 kWf (with water to the evaporator at 12 to 7°C and external air at 35°C), of the silenced type.

    The heat pump can produce water up to 55°C with outdoor air temperatures even of -6°C, and up to 40°C with an outdoor temperature of -15°C (the winter design temperature for Pesaro is -2°C), so it can also work for pre-heating of the ACS upstream of the relevant kettle. In summer, the water can be produced at 7°C with outside temperature up to 46°C.

    This system leads to a significant increase in the energy efficiency of the generator (COP 4.15; ESEER 4.03), even when operating at partial loads. Despite the extension to the entire building of the mechanical ventilation system, the improvement also achieves a significant step forward on the front of primary energy.

    In addition to the air used for heat exchange, the electrical absorption necessary for the operation of the generator refrigerator comes from energy "green", through self-consumption of the production of the photovoltaic field placed on the cover of the school and withdrawal from the grid of electricity from certified renewable sources.

    From an environmental point of view, the main advantages of the improvement is the drastic reduction of the consumption of fossil energy sources and CO2 emissions into the atmosphere. You have in detail (compared to the requirements of the race):
    - 0 p.p.m. Nox (-100%);
    - 0 p.p.m. CO2 (-100%);
    - expected annual emissions of 2,420 kgco2 (-86%);
    - expected annual economic savings of EUR 1,052 (-84%).

    From the economic point of view, it also records a significant reduction in operating costs, further increased by the installation of an additional heat pump, the same type and size of that proposed as an improvement, to ensure continuity of service and increase in the useful life of the generator. The building is equipped with a photovoltaic generation system located on the roof and with a specific power of 28.8 kwp thanks to the installation of 96 monocrystalline silicon panels with a power of 300 Wp each. The PV system is installed on the central part of the roof of the school building, with an inclination equal to 8, with anchorage to the structure according to the indications in the structural tables and with monocrystalline silicon panels 300wp.

    Renewable energy: Optimal production of electric energy due to the PV panels
    •Photovoltaic installation of 158,40 m2;
    •n. 96 photovoltaic modules of 300Wph and 1,96 m2 each
    •Photovoltaic power ratings 28,8 Kw continuous current
    •Inverter Solaredge 27,6KW alternate current
    •113,5 kW heat pump
    •heating system: floor heating and VAV system (variable air volume)
    •cooling system: floor cooling and VAV system (variable air volume).
    The electricity produced by the PV panels also feeds the boiler for hot water production.

    The shape and position of the building was studied and orientated to best exploit solar radiation and optimize the free solar gains and natural lighting and shading: the main axle is oriented in the north-south direction.

Smart Building

    The building has been provided with the installation of BEMS system for the control of the operation and the regulation of thermomechanical systems according to needs, which includes:
    - continuous monitoring of weather conditions;
    - detection and regulation of thermo
    -hygrometric comfort parameters;
    - hygienic replacement of air according to indoor CO2 levels;
    - operation of thermo-refrigerators, UTA, networks and terminals. In particular, the motorized actuators of the KNX type valves allow a finer regulation of the operation of the radiant floor circuits (0 to 100% in continuous), depending on the temperature of the individual room, with the possibility of minimum attenuation (2 to 3°C), in case of short periods of occupant absence, and "energy savings" (4 to 5°C), in case of closure of the building.

    BEMS is an integral part of a wider building automation system, which also deals with:
    - management and control of electrical and special installations (artificial lighting controlled by brightness and presence sensors, supervision of photovoltaic installations, etc.);
    - solar radiation and the operation of obscuring systems;
    - accounting for electricity consumption from the grid and energy production by the photovoltaic system;
    - accounting for thermal and water consumption;
    - maintenance of installations.

    The system used an ethernet network with Bacnet over IP protocol. The implementation resulted in a class A system (according to EN 15232), aligned to the requirements of the CAM and functional also to the LEED certification of the building. Smart grids will be developed to join the plant system of the new school gym that is going to be built at the end of 2021 and the new primary school that is planned to be destroyed and reconstructed with also the reconstruction of the multi-purpose new buildings that are around the school. Thanks to the PV system of these 4 buildings, the municipality aims to develop a smart grid to provide renewable energy in the neighborhood with the intent to develop a smart green pilot district to scale up all over the whole city.

    The monitoring of local energy production and consumption drop scenario is in progress and it has been developed by the Department of Industrial Engineering DIN (University of Bologna).

    Students and teachers are very happy and enthusiast about the Smart Building functions: they realize how it is easy and friendly to obtain the best environment conditions in each classroom and lab.

GHG emissions

  • 9,66 KgCO2/m2/year
  • ISO 14040 & ISO 14044 (CML 2002; Nov. 2012)

  • 520,40 KgCO2 /m2
  • 60,00 year(s)
  • 579,70 KgCO2 /m2
  • The life cycle assessment was calculated using One Click LCA. The results are summarized in following table. The following LCA or EPD standards are all fully compliant with the requirements of ISO 14044, ISO 14025, ISO 21930, EN15804. The ’Gross Internal

Life Cycle Analysis

    The LCA was developed to analyse the whole building impact assessment according to the LEED v4 certification for achieving the needed credits. The LCA takes into account 6 benchmark as following: 1.Global warming potential (greenhouse gases) 2.Depletion

  • 508,30

Water management

  • 1 897,00 m3
  • 24,00 m3
  • LEED v4 BD+C: School – WEp Indoor Water Use Reduction

Indoor Air quality

    The school is equipped with a mechanical filtered ventilation climate system HVAC with a CO2 monitor able to guarantee higher levels of indoor air quality with the air exchange of 5 volumes per hour.

    The air networks branch off to all the spaces with the presence of people (normal and special classrooms, library, teachers' room and presidency, canteen, etc.), so that students and staff always have constantly renewed air and high quality.

    The only UTA (delivery and recovery: 15,000 m3/h) has EC plugfan fans (head: 300 Pa delivery; 200 Pa recovery), F8 filters (renewal air) and M5 (expulsion), plus promiscuous battery for heating and cooling. The ridges run through the suspended ceilings of the corridors and branch off towards the individual rooms (maximum air speed: 6,5 m/s for the main ducts; 4,5 m/s for the distributions).

    Instead of using galvanized sheet metal for the distribution channels, those installed are made with sandwich panels composed of:

    - rigid foam of polyurethane foam as a structural element,

    - coating on both sides with zeolite-treated aluminium foil to be antimicrobial.

    The nanostructured coating of the coating returns a surface in contact with the extremely smooth air that, also thanks to the absence of sharp edges, gives the channels the self-cleaning property thus reducing the need for cleaning of the channels.

    Also to the benefit of air quality, the surfaces of flexible ducts are treated with the technology effective against 600 strains of micro-organisms and certified for the reduction of the proliferation of pathogens. The plenums are equipped with linear vents (2 of discharge and 1 of recovery, for each classroom or large room, in order to contain noise emissions), installed on the wall or in special lowered ceilings inside some rooms.

    The exhaust air extraction system from the toilets has also been extended to the service rooms (warehouses, cleaning).

    The amount of volatile organic compounds (VOCs), such as formaldehyde, contained in construction materials are avoided by the requirements of the LEED certification and the Minimum Environmental Criteria mandatory in Italy. Most of the materials used are EPD certify.

Health & Comfort

    As LEED project, this one had to comply with a ventilation standard used to achieve high indoor air quality.

    The school is equipped with a mechanical filtered ventilation climate system, with a CO2 monitor able to guarantee higher levels of indoor air quality. Please note that in Italy natural ventilation system in buildings is sufficient by law. Natural ventilation significantly depends on the temperature difference between the indoor and the ambient air and the current wind situation. As a result, a sufficient natural ventilation cannot be guaranteed at all times. The ratio of the HAVC system installed is 5 volumes per hour of air exchange to guarantee a high indoor quality, since poor indoor air quality leads to, among others, headache, fatigue, and reduced learning performance. This mechanical ventilation system installed in the school ensure a continuous air exchange throughout the year creating the best health conditions within the school to also reduce the risk of contagion.

    Comfort for all is guaranteed by a remote and customized temperature in all classrooms thanks to the sensors for thermal comfort and indoor air quality ensured by mechanical filtered ventilation climate system with a CO2 monitoring, able to guarantee higher levels of indoor air quality with the air exchange of 5 volumes per hour. In every classroom, a both natural and artificial light control system has been installed, and a high acoustic performance is obtained to create the best environment for learning and teaching.

    Natural ventilation is also ensured thanks to opening in the upper window sections. If the climate is appropriate, natural ventilation can be established by the opening of windows, which would also reduce the building operating costs.

    The amount of volatile organic compounds (VOCs), such as formaldehyde, contained in construction materials are avoided by the requirements of the LEED certification and the Minimum Environmental Criteria mandatory in Italy. Most of the materials used are EPD certify.

    Last but not least the shape of the building and the connection with the garden through the numerous windows, the colour used for the door and ceiling, the functionality of the classrooms and the labs, and the wide halls where students and teachers can meet and have a chat, make this school also friendly and smart.

    The calculated indoor concentration is evaluated in according to UNI 13779:2005 “Ventilation for residential buildings – Performance requirements for ventilation and room conditioning systems”. The air volume flow per person is 21 m3/h person.

    the CO2 monitoring system inside each classroom did not show that the concentration of 1500 ppm was exceeded

    The Italian law “CAM” Criteri Ambientali Minimi (Minimum Environmental Criteria) required to evaluate the thermal comfort in according to EN ISO 7730, the PMV value is between -0.5 and +0.5 (PPD ≤10%)

    a campaign of measures is being organized for the evaluation of thermal comfort

    The acoustic comfort has been obtained in compliance with the indications of the Italian standards UNI 11367: 2010, UNI 11534-1: 2018 and UNI 11534-2: 2020.

    From the in-situ measurements:

    - weighted standardized sound level difference of façade D2m,nT,w is ≥48 dB

    - weighted standardized sound level difference DnT,w between adjacent rooms is ≥50 dB

    - weighted standardized sound level difference DnT,w between overlapping rooms is ≥55 dB

    - weighted normalized impact sound pressure level in field L’nw is ≤ 53 dB

    - equivalent A-weighted sound pressure level in room NORMALIZED WITH RESPECT TO REVERBERATION TIME is ≤ 28 dB (A)

    - Speech transmission index in classroom is ≥0.55

    - The clarity C50 (500-1000-2000 Hz) is ≥ 2 dB

    - reverberation time is compliant with formulas and graphs from DIN 18041, the optimal reverberation time (depending on the volume) is referred to the furnished and occupied state at 80% of capacity.

    According to the Italian standard UNI 10840, the daylight factor is> = 3% in each classroom. Furthermore, according to the EN 12464 standard, an illuminance value of not less than 500 lux is guaranteed in each classroom through a sensor that integrates da

Product

    Heat pump NRL 0280/0750

    AIRMEC

    Air/water reversible heat pump

    This product helps to achieve the LEED scoring on the minimum and enhanced energy performance


    ECP AHU - RHOSS AHU 6.02

    RHOSS S.p.A. ITALY

    Air Handling Unit ADV

    This product helps to achieve the LEED scoring on the minimum and enhanced energy performance and on air quality Minimum and IAQ Performance


    P3 DUCTAL CARE PLUS

    P3 Italy

    air channels


    Keratwin K20 - ventilated wall system AGROB-20

    AGROB BUCHTAL

    Finishing work / paints, mural, wallcoverings

    extruded ceramic titles for wall coverings in outdoor areas used for the ventilated wall facade


    CELENIT AB

    CELENIT S.p.A.

    Finishing work / Partitions, insulation

    Thermal and acoustic insulation in buildings - Suspended ceilings used in buildings

    MR credit Product Disclosure and Optimization – Environmental Product Declarations


    DOP VAEPLAN F / V FR / V

    Derbigum

    Finishing work / Partitions, insulation

    roof waterproof

    SS credit Heat Island ReductionMR credit Product Disclosure and Optimization – Environmental Product Declarations


    smartroof_thermal

    Knauf

    Finishing work / Partitions, insulation

    Rock mineral wool SmartRoof Base and SmartRoofThermal are used as a thermal, acoustical and fireinsulation product.

    MR credit Product Disclosure and Optimization – Environmental Product DeclarationsMR credit Product Disclosure and Optimization – Sourcing of Raw Materials


    FSD 20 / PLUS-E/PRO 80 / PRO 170 TIPO/ ROOF SOIL/SEDUM/STABILFILTER SFE

    DAKU

    Finishing work / Partitions, insulation

    green roof

    SS credit Heat Island Reduction


    COVER 80

    MAYER & CO BESCHLAGE

    Finishing work / Exterior joinery - Doors and Windows

    wooden windows

    MR credit Product Disclosure and Optimization – Environmental Product DeclarationsMR credit Product Disclosure and Optimization – Sourcing of Raw Materials


    Isover X60 VN + Isover Clima 34

    Saint Gobein

    Finishing work / Partitions, insulation

    wall insulation

    MR credit Product Disclosure and Optimization – Environmental Product DeclarationsMR credit Product Disclosure and Optimization – Sourcing of Raw Materials

Construction and exploitation costs

  • 3 707 579,00
  • 4 647 540,00
  • 36 965,00
  • 137 000
  • 2 886 890
  • 816 000
  • 2,886,890€ construction and materials cost
    288,689€ VAT on construction cost
    137,000€ professional services and studies
    45,000€ M&O per year cost
    350,000€ demolition and transportation cost

Energy bill

  • 12 575,00

Urban environment

The site of the Middle School “Antonio Brancati” is located in Pantano a vibrant neighbourhood near to the city center, in the immediate vicinity of 2 other schools. The nearby sports ground are equipped with a large parking space that can be used in the daytime by students, parents, and teachers, to reach the school.

The school is equipped with a library for both school and communal use, and is open to the neighbourhood community all day long with independent access from the outside.

The aim of the whole project is to create a new “school campus” equipped with the new middle school already finished, the school-gym at the design phase both located in the green area replacing the old military barracks, a new primary school that will replace the old one on the other side of the street in front of the new school and a new building for multi purposes activities for the neighbourhood community on the other side of the street at the back of the new school.

The main entrance is located on the courtyard to make access safer and the school is also equipped with service side access from the internal parking space and with another courtyard access that will link to the new gym by a porch.

The courtyard is equipped with sports facilities for playing volley outside.

As the school is built in an existent neighbourhood, there are shops located not far away, bars, and a supermarket.

The municipality provides the public transport service for students who need it.

Land plot area

3 649,00 m2

Built-up area

23,50 %

Green space

10 321,00

Parking spaces

At the surface in the area surrounding the school are located 11 parking places, and 2 of them are equipped with an electric column for the supply of 2 electric vehicles, and 2 others are reserved for emergency vehicles. The area of the parking space is about 300 m2.
Along the road are located 7 new parking places of which 2 are equipped with an electric column for the supply of 2 electric vehicles; 2 for car-pooling, 1 for a green vehicle and 2 reserved for disabled person.
All these parking places are part of the school project and the road was also equipped with the pavement to reach the school safely also by bicycle.
At the entrance, the school was equipped with a covered roof for parking 16 bicycles, and there are other parking places for bicycles without any shelter.
The design of the whole outdoor area will be definitively completed when the gym will also be built.

Building Environmental Quality

  • Building flexibility
  • indoor air quality and health
  • works (including waste management)
  • consultation - cooperation
  • acoustics
  • comfort (visual, olfactive, thermal)
  • waste management (related to activity)
  • water management
  • energy efficiency
  • renewable energies
  • maintenance
  • integration in the land
  • mobility
  • building process
  • products and materials

Energy & Temperate Climates requirements: As the school is built in a region with a Mediterranean climate, the building envelope also needs to prevent heat losses and simultaneously defend against overheating due to rising temperatures in spring and in autumn as the consequences of climate change. A thorough study of heat gains and losses was carried out to optimise the thermal capacity of the building envelope, which has been achieved by using a green roof, automated solar shadings, and the ventilated wall. By the Green Public Procurement activity, the call for tender made mandatory the N-ZEB standard and the LEED certification scheme. The combination of these two mandatory requirements guaranteed to obtain the nZEB school with the LEED Platinum certification with the score of 88 points.

Energy Consumption Reduction: -59,07% considering TEP reduction compared to standard construction (UNI TS 11300 and UNI EN 15193) and - 34,8% reduction of annual costs thanks to:

  • Envelope efficiency: the thermal insulation, the thoroughly study of thermal bridges, the green roof and ventilated wall made of modular porcelain stoneware avoids overheating, minimize losses and reduces also the maintenance costs of the façade
  • the highly efficient heat recovery unit
  • optimized lighting (LED)
  • automatic consumption monitoring control system to make also friendly and easy the use of the building

Renewable energy: the building will be equipped with a photovoltaic generation system located on the roof and with a specific power of 28.8 kwp thanks to the installation of 96 monocrystalline silicon panels with a power of 300 Wp each. The PV system will be installed on the central part of the roof of the school building, with inclination equal to 8, with anchorage to the structure according to the indications in the structural tables and with monocrystalline silicon panels 300wp. The renewable energy production is sufficient to cover the building energy need and made it a nZEB.

Optimal production of electric energy due to the PV panels;

  • Photovoltaic installation of 158,40 m2;     
  • n. 96 photovoltaic modules of 300Wph and 1,96 m2 each
  • Photovoltaic power ratings 28,8 Kw continuous current
  • Not expensive PV system due to the envelope high performance 
  • Inverter Solaredge 27,6KW alternate current
  • 113,5 kW heat pump
  • heating system: floor heating and VAV system (variable air volume)
  • cooling system: floor cooling and VAV system (variable air volume)

The ventilated wall, made of porcelain stoneware, reduces the maintenance costs of the facade and, with the green roof and solar shading supports minimization of energy demand. As a result, mechanical plants are simpler and less expensive in terms of work costs and maintenance. All these technical and functional features increase building adaptability, durability, and resilience in accordance with the circular economy principles.

In addition to LEED Platinum certification with a score of 88 points, it was achieved the near Zero Energy Building standard thanks to the energy efficiency envelope, the highly efficient HVAC and light system and the green roof combine with the rooftop photovoltaic system to reduce the school’s carbon footprint. The friendly monitor system installed helps the users to reach the minimum consumption.

In addition the majority of the materials used are provided with EPD certifications. It was also organized the material management system in the construction site by selective in-situ storage of deconstruction waste and selective collection of all packing and processing waste. During all the process 556,630 kg of waste were created and thanks to all material flows monitored 546,378 kg was recycled and recovered achieving a 98% recovered waste.

The shape and position of the building was studied and orientated to best exploit solar radiation and optimize the free solar gains and natural lighting and shading.

The school building is provided by:

  • integrated and motorized shutters with sensors for natural light and overheating control
  • green roof made of Mediterranean plants with low water need to moderate the impact of high temperatures, capture stormwater, abate pollution, and act as carbon sinks while enhancing biodiversity
  • rainwater collecting tank for green spaces and the green roof to reuse rainwater
  • taps with aerators that reduce water flow by 50% and flash-water tanks for reducing water consumption.

The low impact is also due to the zero-land consumption, the LCA that takes into account 5 specific benchmarks, the waste management during the construction phase.

Due to the highly efficient HVAC and light system combine with the usage of the natural light high comfort is reached to create the best environment for learning. Also, the requirements for acoustic performance and the selection of the appropriate performing systems were deeply analysed to meet the specifications for high-performance results by providing solutions that comply with standards and deliver the best sound experience based on science. The acoustic standard reached has been monitored in situ to check the results and helps to create the best environment to learn too.

Much was done to optimize the design in air quality, so today it is also possible to guarantee comfort, safety, and security in excellent conditions. This building is provided with a mechanical filtered ventilation climate system with a CO2 monitor able to guarantee higher levels of indoor air quality. Please note that in Italy natural ventilation system in buildings is sufficient by law. Natural ventilation significantly depends on the temperature difference between the indoor and the ambient air and the current wind situation. As a result, sufficient natural ventilation cannot be guaranteed at all times. In the long-term, it is also important to structurally improve the HAVC system since poor indoor air quality leads to, among others, headache, fatigue, and reduced learning performance. This mechanical ventilation system installed in the school ensures a continuous air exchange throughout the year creating the best health conditions within the school to also reduce the risk of contagion.

 

     

    Contest categories

    Energy & Temperate Climates

    Energy & Temperate Climates

    Low Carbon

    Low Carbon

    Health & Comfort

    Health & Comfort

    Green Solutions Awards 2020-2021

     buildings
     circular economy
     nZEB
     energy efficiency
     label
     energy
     photovoltaic
     

    Author of the page

  • Margherita Finamore

    Project Manager

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