A window is defined as an opening in the wall above the floor level, whose traditional function is to provide natural light, ventilation and vision. With advancements in technology the role of a window has broadened to include insulation against outside noise, protection from storms, prevent rain water seepage and reduce rising energy costs. It also breaks the monotony of the walls and adds to the overall aesthetics of your home. Windows come in various shapes and styles, and the right kind of window can change the look of your room, home or office. Choosing the right type of window for a particular location can be quite intimidating given the different styles, features and materials available in the market today. Here are a few things you need to know when you plan to replace those old, creaky windows.

FRAMING MATERIAL

Wood and aluminium which had been the predominant material for constructing windows in the past have given way to uPVC (Un-plasticised Poly Vinyl Chloride frames) - a new-age material. Earlier, buildings were not constructed keeping in mind expansion in the size of doors and windows in summers, erosion during the monsoons and exposure to UV radiation and aesthetics. uPVC windows have changed all that and minimised the effect of these unwelcome intrusions. Moreover, materials like uPVC are low-maintenance, aesthetically attractive, energy-efficient, come in a wide range of colours, do away with the need to periodically paint the window and door frames - and don't warp.

• Outer Frame

  This is an immovable part of the window fixed into the aperture that was built into the wall when house was constructed

• Sash

  This is typically an open-able part of the window, although sometimes it can be fixed too (depending on the requirement). It is used to hold the glass

• Trim

  Usually used for covering the openings or the gaps between window frame and the wall, a trim also doubles up as a styling accessory for the window making it visually more appealing. Trims can be applied to both exterior and interior of the window

• Glazing

  This is the glass portion of the window and is often referred to as glazing. Two or three glasses can also be combined together to improve thermal and sound insulation. Different varieties of glasses are available and you can choose the one that meets your requirements

• Transome

  These are horizontal bars that divide the window's outer frame

• Mullion

  These are vertical bars that divide the window's outer frame

• Midrail

  It refers to the dividers (horizontal or vertical) in window sash

• Sill

  It is the horizontal part at the bottom of the window

• Grill

  These are usually metal bars that are clamped inside the window frame or onto the wall to protect against theft.