The main heat -saving element in the window structure — double -glazed window — is a sealed product, which consists of 2 or 3 sheets of glass, they are connected by distance frames, as well as sealants. Depending on how much glass is used in double-glazed windows, these structures are divided into 1-chamber and two-chamber. Before, you need to know — in our latitude must be two -chamber, and the distance between the glasses — 10-20 mm. If there is less, the package will freeze, and if more than 2cm, then convection will begin (that is, the movement of air, which should not be you).
If you are offered to buy single-chamber, then agree only when the tackle is used in the double-glazed window with energy-saving glass (I-glass-it has a transparent metallized spraying that can reflect heat). In this case, the distance of the inter -sticol should not be less than 6 SMM and not more than 2 cm. It is possible to check the presence of a coating of a metallized metal detector or open fire: just struggle a match, bring the flame to this glass — the fire reflected by metallized glass should not be yellow, but pinkish color. Good glass package should be well sealed. Glass in the package separated using special distance aluminum frames with filler. Such frames should be to glass with a special butyle cord, and not for double -sided tape.
