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Short note: Windows and its types

Short answer

Windows admit light and air. Types: fixed, casement, double-hung, sliding, pivoted, louvered, awning, hopper, bay, bow, dormer, corner, clerestory, skylight.

Write a short note on windows and its types with clean sketches.

A window is an opening in a wall, fitted with a frame and shutters, which admits light and air, gives a view and allows ventilation. Its sill is generally kept 0.75-0.9 m above the floor and the total window area is 10-20% of the floor area of the room.

Types of windows

WindowDescription
Fixed windowGlass fixed in frame, gives only light, no ventilation
Casement windowShutters hinged at the sides, open like doors; most common
Double-hung (sash) windowTwo sashes slide up and down in a frame with weights
Sliding windowShutters slide horizontally on tracks; aluminium/UPVC
Pivoted windowShutter turns on a horizontal or vertical pivot at the centre
Louvered windowSlats (fixed or movable) inclined at 45 degrees; ventilation and privacy
Awning windowHinged at top, opens outward at the bottom
Hopper windowHinged at bottom, opens inward at the top
Bay windowProjects outward from the wall in plan; extra space and light
Bow windowCurved bay
Dormer windowVertical window projecting from a sloping roof with its own small roof
Corner windowPlaced at the corner where two walls meet; light and cross ventilation
Clerestory windowHigh-level window above eye level; light and ventilation in tall rooms
SkylightGlass in the roof slope; top light
 Casement        Sliding         Pivoted        Louvered
 +----+----+    +----+----+    +---------+    +---------+
 | /  | \  |    |    |>>> |    |    o    |    |=========|
 |/   |  \ |    |    |    |    |   /|\   |    |=========|
 +----+----+    +----+----+    +---------+    +---------+

✓ Answer checked by Claude Opus 5.5 (high effort)

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