Glasses and multiple glass panes
For the right functioning it is very sufficient to choose the right double glazing window.
Usually, the end user connects windows profile and not the glass, which is not right , given that as space and function 90% of the glass and the window is only 10% - profile.
With many quality and profile systems on the market , the investment in glass is particularly important for the realization of economies of either heating or by air . The wide variety of lenses available on the market but instead to facilitate confuses the user. Although often offer glass with the same features but with different names , as they are from different manufacturers , one hardly made his choice without professional help and explanations. Striving to orient a person in the variety of names and terms as unscrupulous marketing leads to bad practice to consciously harmonize and unify the glass. This leads to widespread use of the term Ka - glass, which are called low emission glass absolutely everyone , regardless of their qualities and method of use , a use of Low-E glass in the glass is very important to prevent thermal losses from the windows .
If we compare a window with single glazing and double glazed with ordinary glass , we find twice as good insulating properties of double glazing, as well as reducing the heat transfer coefficient Ug of 5.9 to 2,7 W / m² K. However, if you replace one with low emission glass produced by modern technology , the coefficient U can be reduced to 1,3 W / m² K. In the case that instead of ordinary air for interim use argon gas , the ratio will fall to 1,1 W / m² K. And all this leads to reduced power consumption.
Choosing the right glazing supposed to consider many factors that are essential for its correct operation.
Of particular importance is the geographic location of the building - whether it is in a mountain resort near the sea or in the city. It is important to know what is the climate and the intensity of sunshine to make a precise selection of glass.
If the room is used mainly only in the winter , ie mostly tends to limit thermal losses from the inside out , the most appropriate glazing for us is that which is made of low-e glass with a soft or hard cover placed in position three , ie staklo.Taka internal heat from the heating returns and remains inside the room. In other words, this glazing prevents loss of energy , and that means lower heating bills . In places oriented to the west or exposed to intense sunshine (usually Mosca resorts ) however, it is not suitable as the retention of heat in the room creates a so-called greenhouse effect .
If the premises are used year round recommended combination is the use of glazing with low-e glass external position 2 in glass -Energy N (Glaverbel), SGG Planibelterm 4S (Saint Gobain), Clima gard Solar (Guardian). Some manufacturers ( " Trakia Glass " eg . ) Call multifunctional or 4 seasons , referring especially its thermal properties that make it suitable for both summer and winter . Critias of this type of glass allows the room to enter a sufficient amount of light, but restricts the movement of heat.
For housing is enough to use a glass " four seasons" and an ordinary glass. Simultaneous incorporation of low-emission and multigrade glass double glazing is meaningless. The combination of these two lenses is recommended and even mandatory for triple glazing , as our climate best option is glass four seasons - usually - low emission , in that order from outside to inside . In this case, the solar factor falls below 42% , and the odds . conductivity reaches 0,6 - 0,7 W / m² K
Our climatic conditions in housing are needed glasses with solar factor about 40% and transmittance glazing over 60-65 %. Appropriate heat transfer coefficient is 1,0-1,1 W / m² K, which has already been adopted as a standard in Western Europe. For low-energy and passive houses are betting lower values for EFF . heat transfer - from 0,6-0,7 W / m² K, using the triple ( double glazed ) windows.
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