Abstract:
EN: Not so long ago, wooden windows with double frames or twin frameswere installed in our houses. And such windows had many cracks which created a draft andallowed dust to pass through. Since heating costs were relatively low at the time, no one paid
much attention to this.But over the time, realizing the timing of the depletion of energy sources and the rapid risein prices for them, people began to spend money wisely on utility costs and count heat losses.
Thanks to modern technologies, today it is possible to manufacture sealed metal-plasticwindows with a single-chamber or two-chamber glass unit. At the moment, the main advantagesof metal-plastic structures are determined by glass, fittings and a profile that is used for themanufacturing of sashes and frames, as well as energy-saving glass coatings.So, during the construction of new housing or its reconstruction, the windows must havethe minimum permissible values of heat transfer resistance: − for the first temperature zone ofUkraine − 0.75 (m2 · K)/W, and the walls − 3.3 (m2 · K)/W].
This indicator can be easily ensured for walls, but it is not so simple and very expensive for
windows.
Also, to increase comfort, it is necessary to take into account the fact that condensation can
form on the surface of the glass units, and moisture can accumulate on the slopes of the window
openings, leading to the destruction of the trim and the appearance of mold.
Modern conditions of comfort and periodic increases in energy efficiency requirements for
enclosing structures make us constantly improve the construction of window filling. And one of
these types of window construction is a double-frame window construction with modern metalplastic
windows spaced at a distance (by calculation) to ensure thermal conductivity and increase
noise insulation.
Purpose of the study. Increasing the heat transfer resistance of translucent structures for
filling window openings.
