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Although the profile is the base of the window / door, the largest heat and noise transmission is made through the glazing as it has the largest area. Therefore, the glazing is a detail that should not be overlooked.

When choosing a glazing, it is important to take into account several things that will contribute to our proper judgment:

  • The location of the building and the climatic conditions in the area
  • Orientation of the dwelling or facade
  • Time to use the building (for buildings to be used only in the summer)
  • The possibility of investing in energy-saving glass which would significantly reduce the cost of heating and cooling.


First of all, about the cameras. A camera in a glazing unit – two glasses plus the space between them.

The number of chambers in the glazing is recorded as follows:

  • One-chamber – 2 glasses and the space between them
  • Two-chamber – 3 glasses and 2 spaces between them
  • Three-chamber – 4 glasses and 3 spaces between them, etc.

Width of the glazing and the formula for its presentation:

  • The width may be different.
  • Standard widths: 24mm, 28mm, 32mm, 36mm, 40mm, etc.

Thus the width of the glass is calculated as the sum of the width of its constituent elements. From Formula 4-16-4 it is understood that it is a double glazing unit, each 4mm wide, with a space between them of 16mm. 

The energy-saving properties of the glazing are directly dependent on the quantity and type of glasses. For example, in a one-chamber glazing, condensation may occur at -7 to -9°C, and for a two-chamber glazing, condensation will not occur at -16 to -19°C.


Resistance of heat transfer (Ro). The larger the coefficient, the less we heat the atmosphere (i.e. the heat stays in the room.).

Sound insulation in our case is called the level of noise reduction. I.e., if the sound insulation is for example 30dB and the street noise is 70dB, it will be reduced to 40dB (70-30 = 40).

What are the tolerable noise levels:

  • for a relaxed sleep should not exceed 25-30dB
  • for rest – 30-35dB
  • at work – 35-50 dB
  • Еxemplary noise levels in different regions:
  • in residential areas – around 60dB
  • in the city center and industrial areas – around 70dB

The calculation is simple: if you live (and sleep) in the city center, then you will need to reduce the noise by 40-45 dB. If you are only working in the center, you can order a noise reduction glass with only 20-30 dB. For the indicators of different glazing see the table below.