Near Zero Emission Building
Heat, energy and water are the natural elements that Petalosa House ™ uses to achieve1 a bio lifestyle and zero environmental impact.
In harmony with nature and in accordance with the versatility of different uses, Petalosa House ™ is customizable and can be harmoniously installed2 into any setting and landscape.
Its unique "petals" structure, the attention to detail and finishes, and its resistance to atmospheric phenomena make of Petalosa House™ the ideal meeting point between safety, eco-technological innovation, comfort, and innovative design.
Petalosa House™ consists of symmetrical, blind and/or windowed petals3. The mobile internal wall allows to modify the usable surface according to the needs and the alternation between day and night. The peculiar arrangement of spaces provided by Petalosa House™ allows two bedrooms, two rooms and two additional beds in the loft area.
Petalosa House ™ is preconfigured and customizable in the final composition, and in the colours, and it can be furnished with the elegant standard complements proposed by its creators. Petalosa House ™ has a sophisticated control system of consumption and production of energy and water. Air quality is monitored and optimized by an apparatus of purification that neutralises and removes contaminants.4
According to the latest innovations, Petalosa House ™ is “nZEB” as it guarantees extremely high energy performances5 which minimize heating, cooling, ventilation, enlighting costs; domestic hot water production costs are also reduced through the exploitation of renewable sources, passive heating and cooling elements, and shading systems.
Therefore, Petalosa House™ provides excellent indoor air quality and adequate natural light, according to the design of the building that makes it resistant to wind, earthquakes and other weather phenomena like dump raising problems
In addition to fine finishes, the absence of cements and plasters, in favour of perfectly matched surfaces, Petalosa House™ can be assembled and disassembled by mean of foundation piles screwed into the ground which solve the problem of ground fixing and cancel any impact on the environment.
The thermal insulation of Petalosa House™ is guaranteed by the combination between the increased thickness of the insulating material (about 30 centimetres compared to 8-10 centimetres of the traditional houses) and its positioning, on the outermost layer of the wall, instead of on the exterior walls of the building, as it normally occurs, without neglecting the proper insulation of the cover.
Thermal insulation is achieved also thanks to a careful study of the structure shape whose compact volume retains heat better than buildings whose volume is fragmentary or else distributed.
The structure gets the heat through sources that are available in every home, but that usually go unnoticed such as: active household appliances, lighting, sunlight coming through the windows, kitchen, hot water flowing through the pipes of the bathroom, and even from human beings who live in there. Although minimal, the amount of heat produced by these sources is not negligible when it is properly preserved.
Petalosa House ™ solves one of the weak points of buildings' insulation: windows.
The structure is enriched by a triple layer of glass, instead of the normal double layer. In this way the surface of the glass is more insulating than the structure of the chambranle. In fact, fewer and larger windows are more functional not only to increase the brightness and heat produced by the sunlight, but also to reduce the loss of heat through the structure of the chambranle.
Shape and exposure
The right exposure of the building is fundamental so that the walls exposed to the sun can absorb the heat, while cooler and less sunny walls are fully insulated.
In temperate climates, it is advisable to provide for sufficient shading of the walls facing the sun through extra petals, to the extent of keeping the house cool in summer.
Air circulation between inside and outside, in all buildings, typically causes severe heat loss. Through the controlled ventilation, with a high energy efficiency engine and a special device for the exchange of heat, Petalosa House ™ allows air incoming to absorb up to 90% of the heat of the outgoing air, before circulating inside.
Controlled ventilation serves both to equalize the temperature of the different rooms of the building by recovering the heat from the rooms where it is most produces (bathroom, kitchen, most crowded rooms) and by transferring it to the cooler rooms (bedrooms, living room) and, at the same time, to change the air, therefore contributing to the welfare of its inhabitants.
The thermal properties of materials and installation choices allow Petalosa House ™ to achieve the highest energy classes.
Together with Petalosa House ™ it is also released the Attestato di Prestazione Energetica (APE) according to the CENED certification and, at the request of the buyer, even more certification protocols such as “CasaClima”, Leed and Breeam.
LEAD-TIMES AND COSTS
Petalosa House ™ is an industrialised structure realised in mini-series in order to cut costs; as such, it allows full correspondence between the cost estimate and the final price for its realisation.
The lead-times to prefabricate and assembly Petalosa House ™ on site are shorter compared to those currently available on the market which require at least four months to complete the procedure.
Such result is possible because Petalosa House ™ does not require any dig nor cement, therefore there is no need to wait for the drying of concrete foundation.
Petalosa House ™ is pre-configured and modular; as such it can be transported in containers, and it can be promptly delivered and quickly installed. In this way it is possible to fully assemble and test Petalosa House ™ in less than/within two weeks.