Windows Windows are arranged for lighting and ventilation (ventilation), space and consist of window openings, frames or boxes and fill the openings, called the sash. Basic requirements for windows, which should respected in their design and construction – to transmit light to the premises in accordance with the required degree of illumination. The windows are the outer fence, and hence design them to consider the same requirements that apply to exterior walls, ie heatproof quality, breathable (blowing), etc. In multi-storey buildings windows and doors are located on the surface of the walls above each another on the same axis. In this case, the load transmitted to the exterior walls, piers perceived. In frame buildings with curtain walls of windows and doors in the partitions can be arranged differently. Window sizes prescribed in the accordance with the regulatory requirements of natural light, architectural composition, a one-time savings and operating costs. The windows are wood, aluminum and plastic windows.

Wooden windows Building large-scale construction mainly operates from standard designs of window units with a translucent filling of a silicate glass or glass. Aluminum window profiles are made of ternary alloys – aluminum, giving lightness of magnesium, which enhances the strength of the alloy, and silicon foundries reinforcing properties. New windows have three-chamber design that provides high heat and soundproofing. Plastic (PVC) – a thermoplastic, it is difficult flammable synthetic pvc material made from natural raw materials: salt and oil.