In principle, to make an optimal insulation of houses built once in the hope of ancient reserves of cheap energy, a specialist in this area is not difficult. But Amateurs can not do it: at best they can guess, but to produce a mathematical calculation, taking into account the wall material, the climatic conditions associated with humidity and many other factors, they certainly would not. Knowledge is not enough.
And it is not in the energy efficiency of the house by a few percent the price of a full finishing the insulation and plaster, and insulation with maximum efficiency, at the optimum cost.
Traditional types of insulation
We all know that the coat is not warm, it only helps to keep heat in our body. However, it's not all that you need to know about home insulation, although many owners of apartments, built on old technology, for some reason reluctant to delve into the effectiveness of the insulation.
When we are cold, we try something to throw on yourself, if you are still cold, it means to throw something thicker. Quite sound logic, but even in this everyday situation, you can find a lot of side effects of warming. Wear something artificial like warmer, but it is marovato. Wear natural, under the nylon windbreaker is the same. Fur coat - warm, but expensive.
Recently there appeared a lot of teams offering external insulation of apartment high-rise buildings. However, they are taken to insulate the walls of each floor, using climbing equipment. In most cases, is non-vented scheme teplosberegajushhie pie. Technology of creation of such insulation is to finish the outer surface of the walls of the foam sheet, and then applying cement plaster. As a result, the wall is formed, protruding 10-15 cm, completely smooth, but distorting the architecture of the building element. The surface of this ledge is often painted, somehow, in the most unexpected colors.
The insulation - the thermal imager.
In principle, the option of insulation is acceptable, from the point of view of physics. Interlayer insulator with a low water-absorbing properties, on top of the finished protective layer is very similar to a thermos, a principle which was formulated by sir James Dewar in 1892 (agree, not very ancient date for such a simple opening).
This construction insulation is most effective in the frying summer days, for isolation rooms from overheating. To reverse the direction of heat is not the best option, due to excessive tightness of the insulating layer.
Owners also allow another serious error. It seems to them that will need to insulate the walls, they once and for all solve all the problems with the insulation of their homes. However, it is not so, because they forget that their part of the wall is just a small fragment of the building. If every wall in the building was insulated from other elements, which cannot be determined, then the individual insulation would be fully justified. It's like, what to wear mitten on the scrap and put it in the cold, in the hope that under the mitten will be warm. According to the laws of physics, the open part of the scrap will work as a heat sink, and will take all the heat of the isolated element.
Of course, brick and concrete has a much lower thermal conductivity than steel, but the abstraction of heat in this case is a matter of time. Another thing, if the wall teploizolyatsii completely when all the tenants decide to insulate, for example, solid North side. In this case, the heat capacity of the large square is significant, however, the adjacent walls will still act as heat sinks. Definitely - when this insulation to the room will be warmer, but only slightly, to the same permeability insulated walls will greatly deteriorate. The dew point will move outward, and the condensate will accumulate under the insulation.
Dew point
This concept is often referred to in the literature on construction topics, and it is no accident that, as an important factor in many construction processes. Simplistically, the dew point indicates the dependence of the condensation from the relative humidity and ambient temperature. In other words, is the temperature at which air with a certain humidity and thermal parameters reaches a critical state, the contained water vapor. To calculate the points race use formula, but most of the table, where the relative humidity and the temperature of the so-called dry bulb thermometer. For example, if 55% humidity and a temperature of +20 degrees, the dew point will be equal to +10, 7 deg. C. At 100% humidity, the dew point is equal to the real temperature.
Water in the wall
If the room is +20 degrees. and on the street -10 degrees, it will mean that between the street and the heated room must be insulating layer. Speaking of location, it is obvious that its projection are the walls. The more these walls is then filled with air, the better will be their insulating properties, because air conducts heat poorly. Windows also belong to walling. Most often between the plates is air, however, that they did not appear condensate, air artificially dried molecular sieve, placed in perforated part. The walls of the same is different. In their thickness with the passage of the dew point condensation, which is excreted through the pores when changing external conditions. If the wall to make a vapor-impermeable, the condensate will accumulate, increasing its conductivity and destroying from the inside out.
Exit
The most correct and scientifically sound method of thermal insulation of buildings - is the technology of ventilated facades. Its essence lies in the external wall insulation vapour permeable insulation, in which between the lining and the insulation layer remains ventilation gap, which produce a constant thrust, bringing excessive moisture. This shell works as genuine fur from the undercoat, creating a layer of insulation with free of moisture.
Ventilated facades, as well as the less effective methods of insulation is most effective when full, not partial insulation of buildings. The technology of their creation is not difficult, however, requires specific knowledge and experience in this field. The thickness and type of insulation, the size of the ventilation gap, the height of seamless facade is determined individually for each case. The advantage of this method is also a wide choice of colors and textures facades and lack of "wet" methods of finishing.
The author of the text: Tamilyn
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