Thermal insulation Thermal insulation - one of the main functions of the window. Heat loss can be divided into three kinds: loss-which flows from the hot air evaporate through the walls, ceiling, floor, doors, windows - the so-called transmission and ventilation or convection losses, which are defined as the amount of heat required to heat up to room temperature cold air coming through the cracks in windows, doors, and the system ventilation, heat loss by radiation - are made by converting the energy of thermal motion of particles in the radiation energy, which is concentrated mainly in the infrared spectrum (SF6) As usual glass window in this spectrum is almost transparent, so the heat loss through radiation is veliki.Cherez window disappears much more heat (see picture), than through the exterior wall, roof or floor, so the heat shield - this is one of the main functions of a window which provides comfortable conditions indoors. Of course, very important to the external climatic conditions. It is clear that the windows, which are suitable for glass house in Sochi, is unlikely to arrange the inhabitants of Vorkuta. Therefore, choosing a window, you need to pay attention to the parameters of the thermal protection due to climatic conditions, which will be used by the window. Ventilation Thermal insulation - one of the main functions of the window. Delivering the best performance insulation, advanced windows sealed disrupt the natural ventilation. The easiest way to provide access to fresh air through the window - is to lift it. Special fittings sets open doors in one of the following provisions: tightly closed completely open ajar on top 10-15 cm - the so-called summer ventilation flap ajar on top of 3-5 mm, and all around between the pads and the profile has a small gap for air to pass through - it's winter, or slit aeration.
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