Warm

Warm-keeping windows

Currently, energy-saving is the most desirable feature of good windows and the decisive factor during windows purchase. Heat penetration rate U=[W/(m2*K)] is a parameter, which helps to establish thermal insulation of windows, i.e. it tells us what is the amount of heat escaping from our house. “Warm” windows has lower U values, which means that smaller amounts of heat escapes outside the house. Therefore, windows should be made of wide multi-chamber profiles and glazed with panes ensuring low U rate. Standard heat penetration rate for panes remains at U=1,0[W/(m²*K)] or U=1,1[W/(m²*K)] level. However, more popular are panes of a bit different construction, i.e. triple glass window panes with heat penetration rates as low as U=0,8[W/(m²*K)] or lower.

Seals constitute a very important component, since they tighten joints between the movable part of a window (sash) and its fixed part (frame). They also shield against chilly air, which is especially effective in the event of strong winds. Windows made of plastics are usually equipped with two gaskets, but we also have three-sealed systems on our offer.

Energy-saving houses cannot have any low insulation areas. Good parameters in PVC windows are usually achieved by increasing either the depth of entire structure (profiles’ width) or the number of chambers in the profiles.

Windows manufactured in our factory have casing depth of 62 - 83 mm, whereas 83 mm profiles glazed with triple glass window panes allow to obtain U rate below U=0,8[W/(m²*K)].