What is this?
It is the answer of estudoquarto_studiostanza for those who want build your own living space in an eco-sustainable and passive way. estudoquarto_studiostanza is an architecture firm based in Brescia, operating throughout the national area. It is composed by Dr. Arch. Marcio Tolotti and by Geom. Enrico Romanenghi.
What is a Passive House?
The passive house (Passivhaus according to the original term in German language, passive house in English) is a house that ensures thermal well-being without or with a minimum energy source of heating inside the building or without any "conventional" heating system , i.e. boiler and radiators or similar systems.
The house is called passive because the sum of the passive heat contributions of the solar radiation transmitted by the windows and the heat generated inside the building by appliances and by the occupants themselves are almost sufficient to compensate for the losses of the envelope during the cold season.
Passive buildings can be made of any construction material: structural wood, brick, reinforced concrete.
|Representation First Passive House estudoquarto_studiostanza|
What is the difference between Prima Casa Passiva and other low-cost house proposals?
The difference lies mainly in the designers and their experience in architecture and construction techniques.
The path to conceive such a complex but essential project was long and unique in its kind. estudoquarto_studiostanza is made up of professionals who have not abandoned their love for architecture and maintain that architecture is a right and a need for everyone.
First Passive House is the representation of the cleaning of unnecessary frills that now bombard our homes with a reduced amount of unnecessary and overwhelming.
|First Passive House ... Outside -2 ° C inside + 22 ° C WITHOUT TRADITIONAL HEATING|
What is the difference between Prima Casa Passiva and the catalogs of houses you find online, the so-called prefabricated?
First Passive House is the condensation of all the needs of a family or an individual: A spacious living room, a kitchen, two bedrooms, a bathroom, a laundry room and large porches enjoyable.
Nothing is prefabricated, in the proposal of € 1.000,00 per square meter the honesty of those who build and the honesty of those who design are contained.
Nothing is left to chance or standardized, the study is done on every single need, while maintaining attention to the essential. The characteristics of Prima Casa Passiva are unique for the proposed amount of construction. The houses you find in the catalog ARE NOT PASSIVE!
What is essential?
The essential for estudoquarto_studiostanza represents everything that is basic for living in comfort, eliminating everything that is not useful for everyday life. It's not about giving up, it's about rediscovering what we really need! Do we need a skirting board for example? Do we need silver plates around the power sockets? Do we necessarily need radiators to heat our home? Do we need expensive lighting systems?
In short, all this and more is considered superfluous to this and more can be omitted without sacrificing the benefit of the heat, and light!
How? Through the construction of a passive house!
|Example of internal First Passive House, large windows facing south and west walls of panels x-lam beams fir, larch floor solid.|
How does it work?
Buildings and construction
Heat loss through the external walls of the building is minimized through the use of insulating materials. The thermal transmittance (low values mean low dispersion) must reach the value of 0,10 up to 0,20 W / m²K. Due to the high temperatures of the internal surfaces of the external walls (walls in contact with the environment) you will also get a pleasant sensation of comfort. In summer, the efficient insulation allows for lower temperatures.
In order to prevent the construction from deteriorating or damaged, together with efficient insulation it is essential that all parts of the construction are airtight at all levels. The internal tightness of the building is easily obtained during the construction phase through the tightness of the building envelope.
In traditional constructions (Massivbau) a suitable layer of plaster is sufficient to obtain the tightness of the wall. For the most critical parts such as windows and doors there are standard products such as Anputz (“Apu”) - Leisten and überputzbare Anschlussbänder available, which make the sealing in a simple way. There is also a proven method for making electrical sockets airtight: make a 5 mm diameter recess and embed a normal junction box with cables already wired, or use special junction boxes that are hermetic and easily available on the market. .
Even for lightweight constructions (Leichtbau) such as structural timber houses, tightness is not a problem. In these houses wood panels (Holzwerkstoffplatten), fiber-reinforced paper (faserverstärkte Papiere oder Folien) are used.
With the use of prefabricated elements these must be made airtight. In this case there are proven systems: - EPDM-Dichtprofile, - Dichtschläuche aus in PE-Folie verpackter Mineralwolle - Abklebungen mit qualifizierten Klebebändern mit ausreichendem Funktionshub. In any case, the joints of the walls (eg cables for external lighting) must be immediately closed hermetically. The tightness also allows better usability in the case of warehouses.
Through a careful realization of the building envelope it is possible to completely avoid possible deterioration or damage deriving from condensation and the formation of mold.
A traditional heating system is not used in the Prima Casa Passiva. There is at least one heat source, and heat distribution occurs in most cases through a controlled ventilation system with cross-flow exchangers that also recover 95% of the heat from the outgoing air. The radiators and the radiating surfaces are not necessary, even if their use is allowed: in this case they can be reduced in size.
To achieve the indispensable air change due to hygienic reasons and at the same time lose the least possible amount of energy, a ventilation system with heat recovery powered by a high-efficiency motor (power required in the order of 40W) is provided. . The outgoing hot air (from the kitchen, bathroom and toilet) is conveyed to a flow exchanger, where the incoming cold air will receive 80% to 95% of the heat. The supply air is thus re-directed towards the house (living room and bedrooms).
The external air flow before reaching the heat exchanger in some buildings is conveyed through a geothermal heat pump. Typically the pipes have the following characteristics: ≈20 cm in diameter, ≈40 m in length and a depth of ≈1.5 m.
The ventilation system is laid in such a way that no air currents are perceptible. This allows you to easily have a reduced supply air flow (a little fresh air inlet is sufficient, the air conditioning system is not necessary).
The ventilation system is indispensable in the First Passive House, since if you used the ventilation through the windows the desired energy saving together with the air quality would never be possible. The ventilation systems of passive houses are silent and highly efficient (from 75% to 95% of the recovered heat). These systems require little electricity (about 40-50 Watts).
The remaining small energy requirement can be produced for example with a small heat pump. There are packaged building services units in English, Kompaktaggregate in German, which are a combination of a ventilation system and a heat pump.
In this way it is possible to re-heat the “supply air” required for heating. The same heat pump could also heat the water. As for all heating systems, even in a passive house the heat pump must be suitably sized. A combination of heating, ventilation system, hot water system is offered by compact systems. They require a small footprint and consume a modest amount of electricity.
What is excluded from the 100.000,00 100 euro per sq m?
- Means excluding the fee of the study which amounts to 15% of the works constructed.
- The municipal charges that vary from each municipality.
- The connections to the power supply / water and sewage.
- Arrangement of the garden / fence / entrance gates, interior furnishings (which we are willing to design low-budget entirely of wood).
Spare than building a traditional house?
This is guaranteed and it is possible to check it every day by taking any newspaper with real estate ads, compare the Energy Classes: Prima Casa Passive exceeds the Energy Class A ++ in reference to the Italian legislation. Keep in mind that you will have a house without gas heating, therefore without bills that continue to increase. The need for electricity can be safely covered by installing solar panels.
For more information, see also the articles concerning "The Passive Linear House" created by estudoquarto where a family of 4 lives:
For more information write to firstname.lastname@example.org
Or call Arch. Marcio Tolotti 333 5856046 and Geom. Enrico Romanenghi 348 2120583