Insulating glass unit covers most of the plastic window construction. This unit consists of two or more glass sheets tightly connected.
The quality of the whole construction depends on its features. The space between the glass calls a chamber. The number of chambers in the profile and in the insulating glass unit are two different things. In block of flats often are set three chamber profile with two-chamber insulating glass unit. A chamber in the insulating glass unit is filled with air or rarefied gas for better heat and sound-proof. This glass eliminates dust and dirt between the glass. The sheets of glass and chambers are shared with framework within moisture absorber.
One-chamber insulating glass unit consists of two sheets of glass and one air chamber and has the formula 4-16-4 (two of 4 mm thick glass and framework with width of 16 mm between them, the total width of the insulating glass unit is 24 mm). This glass has the resistance coefficient of heat transfer 0,32m.kv C / W and reduces external noise level by approximately 34 dB.
Two-chamber insulating glass unit consists of three sheets of glass and two air chambers. The distance between the glass may be different in the two-chamber insulating glass unit. For example, 4-12-4-8-4, it reduces external noise level by 338-40 dB. Condensate in this insulating glass unit occurs at the temperature of 18-22 ° C.
To improve heat-shieldig, the energy-efficient glass is used in the insulating glass unit (I-glass).
Energy-efficient glass (I-glass) – the insulating glass unit covered with metal ions on the surface of the glass protects it from exposure to infrared rays, thereby glass reflects heat from inside in the winter and outside in the summer. Cover consists of very thin layers sprayed on the surface of the glass, transparent of the glass is slightly changed
One-chamber insulating glass unit with energy-efficient glass keeps heat better, it is cheaper and weight is significantly lighter and- extends life (reduces the load on furniture) than the two-chamber insulating glass unit with ordinary glass.
|Type and configuration of insulating glass unit||heat-proof,%|
|ordinary one-chamber insulating glass unit -4-16-4 (24mm)||34|
|energy-efficient one-chamber insulating glass unit -4-16-4i (24mm)||59|
|ordinary two-chamber insulating glass unit 4-6-4-6-4 (24mm)||42|
|ordinary two-chamber insulating glass unit 4-10-4-10-4 (32mm)||47|
|energy-efficient two-chamber insulating glass unit -10-4-10-4i (32mm)||120|
|energy-efficient two-chamber insulating glass unit -16-4-16-4i (44mm)||120|