What is most important in the case of a flat or a house is that its inhabitants have an excellent feeling of comfort. This depends on many things, but arguably the proper thermal comfort is the basis of everything.
More simply: a good home in spring and summer is cool, in autumn and winter is warm. In any case, in spite of the weather, we must assure the best temperature and thermal comfort inside.
To achieve this, thermal insulation is required. In winter we must prevent as much as possible the buildings internal heat generated by the outflow, so we must reduce the loss of heat and in summer should happen just the opposite.
For those who have already finished building, there is not much choice, the insulation must be resolved subsequently. For these, there exist various materials and solutions. There is good, very good, and there is LÖGLEN!
GOOD: polystyrene board (EPS), mineral wool and glass wool
During the manufacture, the air is closed into the polystyrene cells, for this reason has good insulating properties. Polystyrene is the cheapest facade insulation material in the market.
The mineral and glass wool reaches the insulation property by closing the air into its fibers.Good features of fibrous insulated materials: fire resistance, high heat insulation and sound insulation.
VERY GOOD: polystyrene foam concrete board
Itself has excellent thermal insulation properties, it can also be used as a follow-up insulation.
THE BEST: polystyrene concrete (LÖGLEN)
It is not needed subsequent thermal insulation, as long as the wall is made from the combination of polystyrene concrete and steel frame. This is the LÖGLEN system!
Due to its extremely high insulating properties do not require additional insulation, as the wall is made of high insulation material. As a result, the LÖGLEN buildings are of increased low energy.
How is it made?
We fix the concrete panels on the 14 cm width steel frame and inject between them polystyrene concrete. After solidification, the panels and the concrete connect, makes a homogene wall and the buildings made in this way are completely thermal break.
This is needed because the concrete panel -although itself has good thermal insulation features- has a low load-bearing capacity. For making it load-bearing, it is needed to connect it with the steel frame.
How effective is it?
Conform to the experiments made, with the LÖGLEN masonry can be reached a 50-80 % energy save compared with the traditional bricks or concrete made buildings. Due to its excelent thermal features, it received the “A+” energy classification, which is the best category.( U=0,185 - 0,21 W/m2 )
For buildings it is issued energetical certificate for this classification.
This is such a certificate which evaluates the building energetical quality and the authentic information has a primary role.
We can get the following informations from this certificate:
- The energy class of the building
- How much is the building's annual energy consumption (heating, cooling and hot water supply, ventilation)
- How good is the insulation of the building, orientation
In Hungary, the buildings and homes are currently classified into 10 classes, depending on the energetic qualities. The energetic basis of the classification is carried out to the building's actual energy consumption requirements of the prescribed percentage, ie 100%.
For example, at a H category building,with a 300% energy consumption, this means that compared to today's standards the building consumption is thrice. At the A + classification, eg. LÖGLEN the building's energy consumption is up to 55% of the standards.
For example: heating demand for a 100 square meters house:
- Lightweight house: average 9 to 11 kW
- Traditional brick built house: average 18 to 25 kW
- Löglen: average 3-4 kW
The wall heat transfer coefficient characterized insulating ability (U = W/m2K).
The lower the value, the better the heat insulating structure.
In Hungary the standard is U=0,7 W/m2 K for detached houses.
If the U is between 0,3 and 0,1, we can say the building insulation is excelent.