A window may be defined as an opening made in a wall for the purpose of providing day light,vision and ventilation.
For windows:
1. Breath of window= 1/8(width of room+height of room)
2. Total area of window opening should be at least 1/7 to 1/8 of the floor area of a room.
3. The total area of the glass panel in the window opening should be at least 10% of the floor area of room.
4. For public building the provision of window opening should be more than the above requirement.
Casement windows:-
1. The shutters open like door.
2. The construction of casement window is similar to the door construction.
Sliding windows:-
1. Similar to the sliding door.
2. The Shutters move on the rolling bearings, either horizontal or vertical.
3. Provided in the train, buses ,Bank counter ,shop etc.
Double-hung windows:-
1. Consist of the pair of shutters which can be slide within the groove is provided in the frame.
2. A pair of metal weight connected to cord or chain over Pulleys is provided for each sash.
3. Weight,when pulled ,open the Shutters to the required level.
Pivoted windows:-
1. The shutters are allowed to be swinging around the pivot.
2. Windows may be vertical Pivoted or horizontal Pivoted.
3. The Pivoted windows are easy to clean and they admit more light.
Bay windows:-
1. These windows project outside the external wall of a room.
2. The projection of Bay windows may start from flooring level or sill level.
3.This window admit more light, increase open area, provide ventilation and improve the appearance of a building.
Louvered windows:-
1. This louvers are provided in the cases of louvers door.
2. The louvers should slope downward to the outside so that the rainwater do not entry inside of building.
Sash or glazad windows:-
These are fully glazed casement windows.
Circular windows:-
1. This are pivoted windows of circular shape.
2. Useful for factory, workshop etc.
Coner windows:-
1. Provided at the corner of room.
2. This have two faces in the perpendicular direction.
3. Special lintel will have to be cast at corner.
4. Jamb Post of the window at the corner will have to be made of heavy section.
Gable windows:-
1. Windows are provided in the gable ends of roof.
Dormer windows:-
1. These are the window provided on the sloping roofs.
2. Purpose of providing dormer windows is to admit a light and air to room which are constructed within or below the roof slopes.
