ALBO® solar aluminium windows + Benedikt
The desire to minimise heat loss leads window manufacturers to increase the thickness of window frames and sashes. Greater thickness has better thermal parameters and allows the windows to be fitted with quality triple glazing. However, it is necessary to pause here for a moment and explain which insulating triple glazing is suitable and which, on the contrary, will not make you too happy.
If you are choosing quality windows, you should definitely be interested in the Uw parameter, i.e. the transmittance of the whole window. For so-called passive houses, the Uw value must be at least 0.8 W.m-2K-1. Another parameter called Ug is the heat transfer value of the glass - quality triple glazing has an Ug value of less than 0.8 W.m-2K-1.
Up to this point, the decision is usually clear. Compare the parameters and you have made your choice. So what to look out for? The decisive "balance on the scales" is the solar gain parameter, stated as a g-value. This indicates what percentage of the sun's radiation passes through the window. For example, a window with a g=50% will let in 50% of the sun's radiation. If you want to save money in the spring and autumn, you will logically want to heat your apartment as much as possible with the sun's rays.
However, you can often find windows that are excellent insulators but let in less than 40% of the sun's rays. This means more energy to heat and more expense.
Model series of solar aluminium windows
EXCLUSIVE LINE 5000s SOLAR
Solar aluminium window.
Heat transfer coefficient Uw=0,73 W.m-2K-1
Windows fitted with aluminium cladding on the exterior side.
Minimal maintenance, does not need coating.
Insulating triple glazing 4-18-4-18-4, filled with argon, heat transfer coefficientUg=0.5 W.m-2K-1
Sound insulation Rw = 32 dB