Encyclopedia
Window
Window - a component of a wall or roof construction intended for communication between internal rooms and surrounding space, natural lighting of rooms, their ventilation, protection from atmospheric and noise effects, consisting of a window opening with sills, a window unit, a sealing system for installation joints, a sill board, drainage details, and cladding
Source: "GOST 23166-99. Window Blocks. General Technical Conditions"
(approved by the Decree of the Russian Ministry of Regional Development dated May 6, 2000 No. 41)