HOW TO CHOOSE THE WINDOWS GLAZING?

    Along with the type of profiling, one of the most important elements of a window is glass. The choice of a good glazing, provides considerable economic benefits and welfare.

    For the saving of energy, there are several characteristics of glazing that influence their behavior:

    The thermal transmittance (U)

    The solar factor, which is the quotient between the solar radiation that is introduced into the building through the glazing and the one that would be introduced if the glazing were replaced by a perfectly transparent hole.

    Therefore, it is essential that these parameters are considered when choosing the composition of the glasses. In general, the following can be established:

    The arrangement of an air chamber between two glasses (double glazing) decreases the U value, and therefore improves its thermal behavior.
    The Double Glazing Oxford, composed of two glasses and a sealed air chamber, has a better thermal behavior than the simple one, in general, the more the chamber thickness, 8,10,16,20 mm.
    By filling the chamber with gases of lower thermal conductivity than air, it is possible to improve the thermal and acoustic performance. In this case we will replace the air in the chamber with argon gas.

    These crystals are composed of the same elements as any glass with a camera, within any of the wide range of existing compositions, but replacing the air inside the chamber with argon gas, which considerably improves the thermal insulation of the double glazing.

    In addition, the glasses can be treated to increase thermal insulation (low emissivity glasses) and reduce excessive solar radiation (low solar factor glasses)

    Solar control:

    They diminish the incidence of the solar rays but they allow the light to pass.

    Low emission:

    Reduces heat losses in winter and air conditioning in summer

    Selective:

    They are glasses that combine the benefits of solar control glasses and those with low emissivity. They are treated with a succession of layers that have the ability to filter the sun’s rays selectively according to their wavelength. They manage to reflect most of the heat energy without hardly obstructing the entry of sunlight.

    In very cold areas, to achieve even greater thermal insulation can opt for triple glazing with two air chambers, although this entails an increase in the thickness of the carpentry, and therefore, a higher economic cost.

    For the protection against noise, the use of laminar glasses is recommended. Laminated glasses consist of the union of two or more sheets of glass through the interposition of one or more sheets of polyvinyl butyral(PVB), compacted by means of different processes of heat and pressure. This type of glass behaves better than monolithic glass of the same thickness; and even more if they are acoustic laminar. In general, the greater the thickness of the glass, the greater the acoustic insulation. In addition, in the case of double glazing you have to take into account that they behave better with glass of different thickness on both sides of the chamber.

    In terms of protection against impact in risk areas such as balcony doors, it is advisable to provide resistant glass in the form of a secure break such as laminated safety glass, reinforced, tempered, etc.

    With these glasses we will reduce the risk of injuries in case of accidental glass breakage. They also fulfill a security function, protecting both the assets and the people who occupy the home.

     

     

    News Reporter