Conventional IGU

The conventional insulating glass units are a combination of two or more float glass sheets with no significant insulating qualities.

Structure Light
prop.
Energy
prop.
U val. Noise
reduct.
[%] [%] [W/m2.K] Rw Noise
LT LR UVТ EA ЕR SF Air Argon dB suppr. [%]
4 float - 16 - 4 float 81 15 47 15 13 77 2.8 2.6 29 15
5 float - 16 - 4 float 81 14 46 17 13 76 2.7 2.5 30 20
6 float - 16 - 4 float 80 14 44 18 12 75 2.7 2.5 31 25

Advantages:

  • high LT coefficient and thus better illumination of the room
  • low price

Disadvantages:

  • high U coefficient and thus low heat insulation and higher heating costs.
  • high SF coefficient and thus low solar protection in the summer and higher air-conditioning costs.
  • low UVT factor and thus less ultra-violet protection