Glass and Windows

Glass and Windows

Windows are to the house; what fresh air is to us. Just like us, our house too needs to breathe; to inhale freshness and exhale staleness. Windows bring in the much-needed light and air, besides allowing the outdoors in. They showcase the outside world and break the monotony of everyday life.




Windows have a three-pronged or what we call The 3-O Approach - Objective, Orientation and Overall Look.



Windows are beyond mere aesthetics.They

  • Connect us to the outside world
  • Enhance the visual appeal of the house
  • Let in daylight
  • Offer convenience like letting out hot air and enable cross-ventilation
  • Provide energy efficiency, thus reducing power costs.
  • Provide sound insulation from external noise
  • Ensure Safety from both man-made and natural hazards




Not for nothing, are windows designed with a sense of direction.

  • South facing windows will have more sunlight through the day
  • East & West facing windows will get morning and evening sunlight
  • Factor in the direction of the breeze
  • Check surrounding buildings and outdoor views to identify the right orientation of the windows

Overall Look:

Base the overall look on the architectural design. For example:

Traditional Kerala Home


  • Comprises a long, sloping roof to safeguard the home’s walls and cope with the heavy monsoon rains
  • Displays pillars on walls erected on an elevated plinth, to protect against dampness
  • Windows: Casement windows on all floors provide both ventilation and views

Modern Kerala Home

modern kerala house

  • Showcases a sturdy horizontal design with spacious open floor plans, deliberate asymmetry, and large glass windows or glass walls
  • Features more glass everywhere –large windows, balustrades and doors
  • Windows: Large-sized windows, Fixed and sliding types



There are 3 major components of a window-

  • Frame
  • Glass
  • Hardware



Once the type of window is selected, selecting the frame is the next step to provide durability to the window and ensure its longevity.

  • A. Frame Build:Good quality uPVC windows offer benefits like premium look, thermal comfort, low maintenance, noise reduction and durability
  • B. Frame Colour: uPVC frames come in colours & textures to enhance the aesthetics of interiors.The frames can be white-that-stays-white Frame, textured frames and vibrant-coloured frames.






Over 90% area of the window is its glass. The type of glass used has an impact on:

  • The amount of light coming through the window
  • The flow of heat in and out of the home
  • The amount of external noise
  • The energy-efficiency



A. Types of Glass:

  • Clear Glass - Simple glass that keeps the world outside from the inside
  • Tinted Glass - Enhances the aesthetics of the home
  • Sunban-Ideal for windows in Indian climatic conditions, specially engineered to maximize light and minimize heat; optimises daylighting, cuts UV radiation and up to 70% solar heat and offers superior insulation.

B. Glass Fitment:

Every glass comes with a specific fitment into the window, as a Single Glazed Unit (SGU), Double Glazed Unit (DGU), or Laminated.

Single Glazed

A single layer of glass that provides medium to low energy-efficiency, depending on the glass chosen.

Double Glazed

Providing higher energy efficiency, a Double Glazed Unit comprises two panes of glass (an interior glass pane and an exterior one) and an embedded layer of inert gas which creates an insulated environment between the interior and exterior of a window.


Comprising two or more layers of glass sandwiched with a polymeric interlayer like Polyvinyl butyral (PVB), Laminated Glass provides safety and acoustic comfort.

It is always advisable to go for toughened glass for windows. Toughening is a process wherein virgin glass is strengthened up to 4 times to withstand impact and ensure safety.


Good hardware is designed to enhance the look and style of the windows while ensuring smooth, effortless operation, for years to come.


  • Comprises handles, hinges and locks
  • Enables ease of operations & ergonomics
  • Adds to the aesthetics






Windows typically belong to one of the following types:

Sliding Windows

sliding window

Shutters that glide either way to both the left and right, in one frame

Casement Windows

casement window

Shutters open both ways, as per window type

Fixed Windows

fixed window

Non-openable and fixed on all sides

Awning Windows

Awning Windows

Hinged at the top, and open outwards

Tilt And Turn Windows

tilt & turn windows

Opens sideways like a casement window, or tilts at the top or bottom

Bay Windows

Bay Windows

Collection of three or more windows angled towards each other

Combination Windows

combination windows

Combination of sliding, casement, fixed, awning or tilt-and-turn windows

Ensures hassle-free maintenance of the window





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