opening to admit light or air

A window is an opening in a wall or roof of a building, in a car etc., to let air and light in. It is usually filled with a sheet of glass. There can be many different shapes and sizes, including rectangular, square, circular, or irregular shapes. Some windows include coloured glass. Windows are usually transparent so that people can see through them.

A window of a house in England
An old man looking through the window of a tram in Egypt

Before glass was used in windows, people in Asia used paper to fill the hole in the wall. The paper would let light in.

Types of window Edit

These are different types of windows. They are:

Cross-window Edit

A cross-window is a window that has a mullion and a transom, that makes a cross.[1]

Fixed window Edit

A fixed window is a window that cannot be opened. It is made to allow light to enter.[2] The windows in churches are usually fixed.

Single-hung sash Edit

A single-hung sash window is a window that has one horizontal sash at the bottom that can move up and down.[1]

Double-hung sash Edit

A double-hung sash is a window that has two sashes (panels) that can independently move up and down. One is usually the lower; one the upper.

Casement window Edit

A casement window

A casement window is a window with a sash that has a hinge that swings in or out like a door. Casement windows are usually held open using a casement stay.

Skylight Edit

A skylight

A skylight is a window built into a roof. This type of window allows natural daylight and moonlight to enter.

Roof lantern Edit

The lantern over the dome of the Florence Baptistery

A roof lantern is a glass structure that has lots of different colours. It looks like a small building. It is built on a roof for day or moon light.[3]

Stained-glass window Edit

Sunlight shining through stained glass

A stained-glass window is a window that is made up of pieces of coloured glass. The coloured glass can be transparent, translucent or opaque. It usually shows people or places. Usually, the glass in these windows is separated by lead rods. Stained-glass windows are very common in churches.[4]

How they are made Edit

Different materials are used when making a window. For the frame of the window wood, polyvinyl chloride, composite, aluminium, steel, fiberglass are used.

Many windows have movable window coverings such as blinds or curtains. They keep out light, give extra insulation. It also ensure privacy. Windows allow natural light to enter. But too much can have bad effects such as glare and heat gain.[5]

References Edit

  1. 1.0 1.1 Curl, James Stevens, 1937- (2006). A dictionary of architecture and landscape architecture. Curl, James Stevens, 1937- (2nd ed.). Oxford [England]: Oxford University Press. ISBN 978-0-19-280630-7. OCLC 64585874.{{cite book}}: CS1 maint: multiple names: authors list (link)
  2. Germer, Jerry, 1938- (29 October 2013). Kitchen & bath residential construction and systems. National Kitchen and Bath Association (U.S.) (Second ed.). Hoboken, New Jersey. ISBN 978-1-118-71104-0. OCLC 830669202.{{cite book}}: CS1 maint: multiple names: authors list (link)
  3. Sarviel, Ed. (1993). Construction estimating reference data. Sloan, Scott, 1946-. Carlsbad, CA: Craftsman Book Co. ISBN 0-934041-84-9. OCLC 27684161.
  4. "Stained glass window". Retrieved 2020-09-07.
  5. Massachusetts Institute of Technology. Department of Architecture. Design Evaluation Project. (1976). Designing for the elderly, windows. The Project. OCLC 4674708.