KF 520 UPVC/ALUMINIUM
The new KF 520 combines innovative design with technical know-how. The window sash is not visible from outside due to its glass appearance and can optically not be distinguished from fixed glazing. This sash also contains the revolutionary locking I-tec Secure which renders levering of the window impossible - unrivalled in the branch. Integrated flaps press on all sides into the frame interior when locking and thus ensure maximum burglary protection.


PROPERTIES

Thermal insulation (in W/m 2K)
U w as low as 0.63

Sound reduction (in dB)
33 - 46

Security
Up to RC2, RC3

Locking
Fully Integrated

Construction depth (in mm)
93
Test Certificate Available
GLAZING SYSTEMS
The thermal insulation of a window depends on the frame material, the glazing and the impermeability. The parameter is the U value – the lower the figure, the better the thermal insulation.
The soundproofing of a window depends on the frame material, the glazing and the joint permeability. The parameter is the dB value – the tighter a window closes, the better the insulation performance.
U w = | Thermal insulation of the window acc. to EN 10077-1 (calculated) or acc. to EN 12567-1 (tested) (is stated in watts per square metre kelvin = W/m2K); the following tables state this value per Internorm window system – with stainless alu or ISO spafers respectively |
U g = | Thermal insulation of the respective glazing |
R w = | Soundproofing of the window acc. to DIN EN 20140-3 (stated in decibel = dB) |
Triple GlazingUPVC/aluminium Windows |
KF 520 |
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Glass | Glass code | U g/R w | g % | ALU | ISO | |
4b/18Ar/4/18Ar/b4 | 3N2 | ECLAZ® | 0,5/33 | 60 | 0,81 | 0,70 |
6b/18Ar/4/16Ar/b4 | 33U | ECLAZ® | 0,5/38 | 59 | 0,81 | 0,70 |
4b/16Ar/4/15Ar/b44.2(VSG-S) | 34N | ECLAZ® | 0,6/41 | 60 | 0,89 | 0,78 |
44b.2 (VSG-S)/15Ar/4/12Ar/b44.2(VSG-S) | 3FH | ECLAZ® | 0,6/46 | 55 | 0,89 | 0,78 |
Related Information
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This architectural style is very puristic in its design. Clear shapes and minimal design are typical. The minimalistic living style is reduced to the basics.