HOW TO CHOOSE GLAZED WINDOWS?
The Valencian Institute of the building through its "rehabilitates your home", gives us some tips for choosing the glass in the windows.
For energy saving features are several glazing influence their behavior:
thermal transmittance ( U)
solar factor, which is the ratio of solar radiation that enters the building through the glazing and would be introduced if the glazing could be replaced by a perfectly transparent hollow.
It is therefore essential that these parameters are considered in choosing the composition of the glasses. Generally, you can set the following:
The provision of a cavity between two glass (double glazing) U-value decreases, and thus improves its thermal behavior.
The double glazing comprising two glasses and an air chamber, has a better thermal behavior than the simple, the more general the greater the thickness of the camera until 8,10,16,20 mm.
exceeds 20 mm cameras the thermal behavior tends to worsen.
Also glasses can bring a treatment to increase the thermal insulation (low emissivity glass) and reduce excessive solar radiation (low solar factor glass), so it is convenient to use the latter in windows that receive direct sunlight.
In very cold areas, for even greater thermal insulation you can opt for the triple glazing with two air chambers, although this entails an increase in thickness of the woodwork, and therefore a higher cost.
For protection against noise, we recommend the use of laminated glass, for better than monolithic behave the same thickness , and even more if they are layered acoustic. In general, the greater the glass thickness has higher sound insulation. Furthermore, in the case of double glazing must take into account that work best with different glass thickness to both sides of the camera.
As for impact protection in risk areas like balcony doors, provision resistant glasses shaped like the safe break laminated safety glass, armed , temperate, etc.