Wooden elements of the OptiLight window are made from a high quality pinewood which is bonded in layers, impregnated, and coated with an ecological acrylic finish. The wood is protected on the outer surface with weather and UV resistant aluminium profiles.
Thermally insulated glazing unit
The window has a large effective glazing area, which allows more light to enter the room. All windows are double glazed, and use a single chambered construction. The U coefficient of the pane is 1.3W/m²K. Space between panes is filled with inert gas. The internal pane is coated with a heat reflecting low-emission layer, external glass toughened. It helps to reduce heat loss during winter and overheating during summer.
The air inlet of OptiLight VB type efficiency is up to 20 [m³/h]. The air quantity flows into the room through the window with 78cm or 114cm width and pressure difference of 10 Pa. Windows with a 78cm width and above have in the air inlet slat in two openings. In windows with 55cm and 66cm width, air inlet efficiency will be respectively lower and is 15 [m³/h]. The windows with 55cm and 66cm widths are equipped with an air inlet slat with one opening.
Convenience of use
OptiLight windows have a centre pivoting construction. The hinges installed in the middle of the window allow the sash to be opened in a range of positions and to be rotated up to 180 degrees. The handle design enables tight closing and two positions of micro ventilation. The handle positioned at the bottom of the sash makes using the window easier and more comfortable, irrespective of the height at which the window is installed. Its pivoting structure and functional handle placed in the bottom part of the sash ensures comfortable use and operation.