all year round
Low emission glass
Low emission glass provides thermal comfort, thanks to their excellent insulation. Their applications in combination with a warm edge space bar curved at the corners can effectively protect against heat loss.
Thermal comfort
in winter and summer
In winter
Thermal insulation is the primary task of low emission glass. Thanks to insulated glass units with low heat transfer coefficient, windows can achieve insulation levels close to the building walls, effectively protecting against heat loss.
In summer
During the summer, the sun emits huge amounts of heat energy - compared to winter. This results in overheating of the rooms, which is primarily caused by energy transfer through the glass. Our range of low emission glass includes constructions that reduce the effect of overheating.
How insulated glass units
protect against
heat transfer?
Heat transfer level is one of the basic parameters of insulated glass units. Thermal insulating properties have a very big impact on how much heat will stay inside a room and how much will transfer to the outside. See a video on how this process works in practice.
Benefits and applications
of low emission glass
Benefits
- Maintaining optimum temperature in rooms
- High light transmission
- Reduction of heating costs
- Reduction of harmful gases emissions into the atmosphere
- Reduction of vapour condensation on the edge of the glass
Examples of applications
- Energy efficient and passive houses
- Office and commercial buildings
- Public buildings
- Roof glazing and skylights
Specifications
| Ug EN 673 [W/m2K] | g [%] | Lt [%]. |
|---|---|---|
| 0,4-1,3 | 37-73 | 55-82 |
| Structure [mm] T-thermofloat | LT [%] | LR [%] | g [%] | Ug EN 673[W/m2K] |
| 4T 1.0/12Kr/4/12Kr/4T 1.0 |
58-73
|
18-32
|
37-50
|
0,4
|
| 4T 1.0/10Kr/4/10Kr/4T 1.0 |
0,5
|
|||
| 4T 1.0/16Ar/4/16Ar/4T 1.0 |
0,5
|
|||
| 4T 1.0/12Ar/4/14Ar/4T 1.0 |
0,6
|
|||
| 4T 1.0/10Ar/4/12Ar/4T 1.0 |
0,7
|
|||
| 4T 1.1/12Kr/4/12Kr/4T 1.1 | 73-75 | 14-17 | 52-55 |
0,5
|
| 4T 1.1/18Ar/4/18Ar/4T 1.1 |
0,5
|
|||
| 4T 1.1/10Kr/4/10Kr/4T 1.1 |
0,6
|
|||
| 4T 1.1/16Ar/4/16Ar/4T 1.1 |
0,6
|
|||
| 4T 1.1/14Ar/4/14Ar/4T 1.1 |
0,6
|
|||
| 4T 1.1/12Ar/4/12Ar/4T 1.1 |
0,7
|
|||
| 4T 1.1/10Ar/4/10Ar/4T 1.1 |
0,8
|
|||
| 4/16Ar/4T 1.0 |
71-81
|
14-22
|
50-61
|
1,0
|
| 4/10-14Kr/4T 1.0 |
1,0
|
|||
| 4/10Kr/4T 1.1 |
81-82
|
12-13
|
63-66
|
1,0
|
| 4/15-20Ar/4T 1.1 |
1,1
|
In accordance with PN-EN ISO 10077, we recommend the use of a warm edge curved at the corners. The applications of the warm edge improve thermal insulation at the edges, which increases the temperature of the glass in this area and at the same time reduces the risk of temporary condensation of vapour.
The main criterion considered in the evaluation of insulated glass units is air tightness preventing ingress of moisture and gas leaks. To ensure that these parameters comply with the current european standard EN 1279, the spacer bar on the perimeter of the glass should be curved at the corners. Cutting and joining spacer bars reduces glass pane tightness and accelerates degradation of heat insulating properties. Glazing units with frames cut in corners can fail to meet the tightness requirement acc. to EN 1279.
Downloads
of sustainable construction