Prefabricated wooden houses

Prefabricated wooden houses

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Prefabricated wooden houses: costs to be assessed, guarantees and certifications. Casaclima protocol, passive house system and LEED certification to ensure high living comfort and low consumption.

The prefabricated wooden housesrepresent a winning choice from an eco-sustainable perspective. A prefabricated wooden houseit is characterized by a perfect insulation, both thermal and acoustic, it is earthquake proof, made with natural materials and tailored to man.

The wood it is a "living" material that has the ability to naturally absorb most of the noises coming from outside or originating in a different room of the house. It is not just the thermal and acoustic insulation that convinces. In this article we will analyze the guarantees and certifications to be evaluated in case of purchase of one prefabricated wooden house.

Prefabricated wooden houses, certifications

Thecertificationsare linked to individual construction materials or the entire envelope, they can refer to the plant design, the life cycle of the structure, the production chain, well-being and home comfort, energy saving ... In short, there arecertificationswhich relate to the building sector at 360 °. On a national level, every building (including the prefabricated wooden house) must have an energy certification, in a mandatory way.

Not only that, when it comes to energy saving and use of resources, there are three highly accredited voluntary protocols:

  • LEED standard
  • Passivehous system
  • Casaclima protocol

LEED certified wooden house

LEED certification,Leadership in Energy and Environmental Designit is applied in over 140 countries. This protocol marks the requirements to be respected to buildhomesthat are sustainable from both an environmental and an energy point of view, therefore in relation to the consumption of resources, the origin of raw materials and the entire production process.

Passivehaus certified wooden house

The Passivhous system is very popular in both Germany and Austria. To obtain this certification, thehomemust meet strict parameters relating to energy needs for heating and cooling, air tightness and primary energy consumption.

In aPassivhous wooden house properly designed, the typical heat losses of critical points (windows, fixtures, doors and windows) are compensated by the heat input caused by the occupants of the house themselves and the use of the rooms. Fantastic isn't it ?! It means that the thermal energy released from the body of those who live in the house is enough to compensate for the heat loss caused by doors and windows.

Wooden house with Casaclima certification

ThereCasaclima certificationit is very popular in Italy: there are more than 7,000 Italian buildings certified by the AgencyCasaClimaof Bolzano.

The standards imposed by the Casaclima protocol vary according to the quality of the insulation of the building envelope and its type.

ThereCasaclima certificationit is divided into three "energy classes": gold, A and B. The lowest energy consumption is typical of the Gold class with 10 kW per square meter per year. A house with Casaclima Oro certification is called a "one-liter house" because for each square meter, one liter of diesel oil or 1 cubic meter of gas per year is enough to ensure maximum thermal comfort.

THEthermal and acoustic insulation

The excellent thermal insulation ensures a healthier microclimate inside the home, tangibly contrasting the typical problems of apartments, such as cracks, lesions, mold or condensation. Thanks to the natural quality of the wood, which allows for a thermo-hygrometric comfort, the moisture is absorbed quietly, offering a healthy microclimate. THE prefabricated in wood they also have the advantage of ensuring excellent sound insulation.

The walls of the prefabricated wooden houses they are then optimized thanks to a further patina of thermo-acoustic insulating material (always woody). This layer is able to avoid transmission between adjoining rooms of the house. All this is guaranteed by the sound-absorbing qualities of the wood. In the design and assembly phase it is good to remember to hermetically soundproof the systems such as pipes, cables and cavities in the floors and walls: the joints, during the design, must in fact be made without burrs, to counteract the propagation of any kind of noise efficiently.

Designing a prefabricated wooden house

To ensure all this, careful preliminary design is essential. The careful choice of the structure and materials of your future home create the ideal conditions for habitability within it.
The first thing to take into account is to avoid the so-called acoustic bridges which are the main cause of the typical noises from footsteps, ensuring perfect sound comfort. But that's not enough. It is necessary to ensure efficient sound insulation due to multiple noises coming from the different rooms of the house.

In architecture, noises are distinguished according to two specific classes: there are "aerial" noises, that is, the noises that come from the walls and floors that propagate inside the neighboring rooms; then there are the "impact" noises, which come, for example, from the trampling of any flooring or, caused by the friction of the movement of furniture which affects the floors above and below the house.

Video: BULLERBY HOUSE - From Swedisch Tree to German Home. Full Documentary (August 2022).