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Classification of window or types of windows architecture and window opening type

➦ Classification of window


1. Fixed window➦

It is fixed in the wall and makes no provision for natural air circulation.








2. Double hung window➦

In this types both sashes slide vertically with the weight balanced by the sash weight, spiral spring or tape spring balances.



Sashes: a frame holding the glass in a window.

3. Horizontal sliding window➦

In this type either one or both sashes are arranged to slide horizontally. Sashes are sometimes suspended from rollers operating an overhead tracks. Heavy sashes are often provided  with nylon rollers at the bottom for ease in operation.



4. Casement window➦

Any hinged window which may swing out or in like doors, is termed as casement window. These windows usually swings on extensions hings provided on the slide. There are out and in swing casement windows with two sashes. Extension hings are used to make the sash swing clear of the inside surface of the wall.



5. Folding window➦

It is a form of out swinging, casement windows with the two sashes hinged together on its meeting stile, rather than each to its outside stile. The projection arms are so arranged that the sashes arranged symmetrically.



6. Pivoted windows➦

In such type of window, shutters swing around pivots. It may be horizontally pivoted and vertically pivoted. SUch windows are easier to clean and they allow more light to come inside the room. The frame of this type of window is similar to casement window but no rebates are made in the frame.



7. Top and Bottom hinged window➦

Sash window may be top-hinged out-hinged or top-hinged in-swinging or bottom-hinged in-swinging type. 

8. Hopper window➦

Any inward projecting window when located at or near the bottom of a window is termed as hopper window.



9. Projected window➦

A window with a ventilation sash that projectes outward or inward is called a projected window. 


10. Circular window➦

It is a window which is circular in shape and pivoted with the central axis. It is opened and closed by means of two cords, like clere-story windows. These windows are commonly used in factories and lofty rooms for admitting light and air.
11. Dormar window➦
These are the vertical windows built on the sloping sides of a pitched roof. 


12. Corner window➦
As the name implies this type of window is placed in the corner of a room in the building. This window provides light and ventilation from two directions at right angle to each other and improve the appearance of the building.

13. Bay window➦
It is a window in the building which is projected beyond the wall of the room. It is provided to improve the architectiral appearance. Additional space is obtained to allow light and air into the room.

14. clere-story window➦
This window is usually provided near the top of the main roof and is made to open to the adjoining varandah or lean to the roof. This is essential to exclude the rainwater.
15.  Lantern light window➦
Sometime light entering from the window in the walls is inadequate. In this case some more window are provided on the flat roof s to admit more light in the room. This type of window is known as latern. It may be curved, rectangular or square. Generally glass panels are used to covers the sides of the lanters. pivoted shutters may be used when it is desired to admit air and light.



16. Sky light window➦
This type of window is fixed on the sloping surface of an inclined roof.
It is meant to admit light into the room and generally is fixed with glass panels to cover it. Reinforced or ribbed glass is preffered. A curb frame is provided with the common rafer to support the window.


         





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