Roof. If the floor - the latter, then the roof over the balcony serves not only heat insulation function, but also protects the house from intruders entering from the roof, or those floors. Modern balconies covered with corrugated roofing sheets - corrugated steel canvases. This material is strong and durable, but has poor sound insulation, so that the sound of rain, howling wind, walk on the roof of the birds can be confusing for tenants. This problem is particularly acute in the case of the upper floors. Also profiled contains no insulation, so need to worry about it separately. A good result gives a combination of heaters, for example, mineral wool insulation and a well-known brands, for example, firms Knauf, Isover, Rockwool, Izovol etc. In any case, you must take into account the peculiarities of the balcony. For example, to the north side alone, mineral wool will not be enough, because very likely that she otsyreet. Floor. Typically, the floor requires alignment with the subsequent thermal insulation. From heaters use extruded polystyrene ( "Penopleks", "Stirofom", "Kinplast" and others), which has the best performance among the foams. Glue to stick polystyrene, which does not contain organic solvents. Faster on metal lath polystyrene can not, because these materials are incompatible with the foam heat indicators, and become a sort of "cold bridges" on the balcony. On polystyrene can do screed, installing floors with electrical or mount the wooden joists for the subsequent laying of wooden floors. After the insulation when the way out of the heat out "closed", the question arises of heating. It will have to decide, depending on whether one is talking about a loggia or a balcony. "If the purpose of expanding the room demolished the wall between the balcony and in the adjacent room, the number of radiators in the radiator should be increased, or altogether to make the battery to the loggia," - said a private businessman. In the case of the balcony will have to think about alternative sources of heat. This is due to the fact that installing central heating pipes in the balcony is prohibited. Options may be few. a) Sex electrically. One of the phenomena plaguing errors, due to which the option is used infrequently, this version of the high consumption of electricity. In fact, the level of consumption is comparable with two 100 watt bulbs per square kilometer. m. electric fields can lay linoleum, ceramic tile, laminate. In the case of electric fields the distribution of warm air flow is optimal - the floor temperature is 24 degrees, at an altitude meter from the floor - 22 degrees, and the ceiling - 20 degrees. b) Installation of air conditioning system "warm-cold". Modern air conditioners can provide heat even in sub-zero outdoor temperature. Also important is that with the air conditioner would be to ventilate the air in the loggia. The cost of this alternative heating is large enough, but the effect eventually double - warm in winter and cool in summer. a) Use the electric heater, an oil battery etc. etc. In the "pros" of this option - its simplicity, convenience and accessibility. For every 4 square. square meters require convector power 0,75 kW. If loggia big (over 6 square meters), then for uniform heating of optimizing the two of heater than one, but at 1.5 kW. Of course, for the implementation of these options need to worry in advance about the withdrawal of the wiring. A very important element in the balcony of a vapor barrier warming. Since the temperature difference in the winter inside and outside the balcony is quite large, it is likely condensing, and as a consequence, the development of mold. The moist air penetrates through the insulation of apartment, and, if not met in its path the barrier, is faced with the cold outer wall of the balcony, and then condenses. The role of the barrier to play insulation. This can be a special film that paved between the insulation and the lining (or other finishing material), and the insulating material with a special vapor barrier layer. For example, "Penofol" - a material composed of aluminum foil and polyethylene foam of different thickness. Procedure to create a "thermos effect" might be: - Pave the insulating material (foam thickness of 30-40 mm), - Pave the aluminum foil vapor barrier side up (its thickness is about 10 mm), - To make crates to create air locks between the film and finishing the balcony (15 mm). There are several common mistakes that lead to the fact that the desired effect of insulation can not be achieved. Error investigation Carry out work only for the internal insulation balcony, ignoring the outside. Without adequate external insulation sooner or later the heat-insulating material will become worthless, because he will not have sufficient protection against weather influences. Lagger longer perform its function. Do not heat insulation ceiling of the loggia with its combination of room, if the neighbors above insulated floor. In this case the cold still penetrate the loggia exits through the edge of concrete floor between the lower and upper loggias. In cold weather, these floor be dead, and all the cold, which prevents access to top, through the insulated floor neighbors, go down, through non-insulated ceiling. Application at the juncture of "window-wall" only installation of sealants. Without additional protection assembly foam eventually crumble, and the cold can easily penetrate into the balcony. Must be used in these areas heater. Gap insulating layer at the junction of the ceiling-wall "," wall-floor ". Effect of "thermos" will disappear if they are admitted to the smallest zone "incoherence" of insulating material. Typically, heated balcony or loggia - not a cheap. Actually, this can be equated to a full-fledged living room annexe to the existing premises. The average cost of insulation is difficult to deduce the balcony, because the "fork" for each type of work for each of the materials is quite wide. You can say that the full glazing and insulation medium balcony will cost about 15 thousand hryvnia.