Insulation

The comfort of a housing passes obligatorily by a good insulation. To protect itself from the noise, the cold or heat: ground with the roof, it is the entirety of the house which is related to with this work.

 

Economies and ecology

A house better isolated reduced thermal losses, which decreases the requirements in heating. The summer, it limits also the needs for air-conditioning.

These economies allow in addition a fall of the CO2 rejections in the atmosphere, which placed the insulation of constructions in the middle of the ecological debate.

The houses whose permits building were deposited after September 1st, 2006, must be in conformity with the regulation thermics 2005. The latter decreases by 20 % consumption compared to the thermal regulation of the year 2000.

In 2012, the houses will have to display a consumption lower or equal to Wh/m ²/year. This objective falls under the step followed by the manufacturers of detached houses: since the thermal regulations of 1974, energy consumption was divided by two.

Good namely: the energy Diagnosis of performance is obligatory for the new houses since July 1st, 2007. It indicates the amount of power consumed for a conventional use of housing.

Powerful isolating materials

A broad pallet of products is marketed by the industrialists:

  • mineral wools
  • complexes marrying plasterboards and insulating
  • expanded or extruded polystyrene
  • tease hemp
  • insulating out of wood

These products will be selected according to their own performances and their operating requirements.

To note: certification guarantees the stated performances of the product, like the capacity insulating and the fire resistance.

The roof

According to the , 30 % of the losses thermal come from the roof in an uninsulated detached house.

  • If you have lost roofs, it is possible:
    • to blow there of mineral wool in flakes
    • to extend to it from the mineral wool rollers
  • If your house has suitable roofs, the insulation of crawling will be carried out using mineral wool rollers.

Ground

The ground is also one of the posts which generate the most thermal losses.

The polyurethane belongs to the powerful isolating materials which offers an important mechanical resistance and thermal. They are foam plates a thickness from 5 to 6 cm which insulate the flagstone the insulation can be also carried out via a floor with polystyrene hollow block.

Walls

The insulation of the walls will be carried out interior via complexes of doublings which either are stuck to the walls, or screwed on cleats fixed at the walls.

Interrupters of cold bridges will have to be posed to decrease the losses which occur with the junction of the wall and the flagstone.

Good namely: the interior insulation will not be necessary if your walls are built out of gas concrete or terracotta, because these two materials are insulating.

To protect itself from the climate

To insulate is not limited to prevent heat from leaving the house. It is also necessary to ensure good impermeability of construction the outdoor air. The windows fill a crucial role.

Controlled mechanical split (VMC)

The provide several essential functions for the comfort of the occupants:

  • It renews the air by extracting the foul air by mouths located in the wet parts: toilets, bathroom, kitchen, etc
  • It disseminates new air via inputs above the windows of the stay and the rooms

The bad smells, moisture are thus abolished. But this operative paragraph also contributes to save energy while letting enter in housing the volumes of air necessary, which limits the thermal losses.

Several types of are available:

  • the hygroadjustable one: the extraction of air adapts automatically to the moisture content of the part. The ventilator increases its speed after a shower and reduces it when moisture disappeared. The medium flow is divided by two compared to one self-adjustable, which makes it possible to save up to 10 % on the note of heating.
  • double-flow: it recovers the calories of the interior air vitiated to heat the entering air. The most powerful systems use exchangers which recover up to 90 % of the calories, for a final temperature of 18°C.