Glass Options - uPVC Window Glass Options, Float Glass, Tinted Glass, Reflective Glass, Triple Glass, Laminated Glass, Toughened Glass options for Fenesta uPVC Window.
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Which glass should we choose?

Glass is an important component that impacts the functionality of the window. You can use the following indicative chart to make your selection.

Glass Type


  Sound Insulation Heat Insulation Light Safety
Float √√√√
Tinted √√ √√
Reflective √√
Toughened √√√√ √√
Double Glazed Normal √√ √√√ √√√√
Double Glazed Toughened √√ √√√ √√√√ √√√√
Triple Glazed Normal
√√ √√√ √√√√

Double Glazed Glass offers best solutions for sound insulation, thermal insulation & safety.

Note: The ticks are not mathematical in nature, just an indication of effectiveness. Four ticks do not necessarily mean twice as effective as two ticks.


Relative comparison of different type of glasses

Glass Type



Float Glass

Derives its name from the name of its manufacturing process, the float process. In this process, a sheet of glass is passed repeatedly on a bed of molten tin. This process gives uniform thickness and a bright surface to the glass Gives high visibility and clarity Can be further fabricated into other forms of glass like reflective, tinted, toughened etc. Does not offer enhancedfeatures like insulation protection etc Vulnerable to break ins.

Double Glass Unit

The insulated Glass unit is a set of 2 layers of glass with an aluminium spacer in between. Sealed to form a single unit with an air gap between the two glasses. Space between glasses is filled with dry air, which improves insulation. Improved insulation reduces air conditioning/heating bills Improves sound insulation significantly, reducing road and aircraft noise Slender frames fit perfectly well with the look of the windows. Increases security In case of breakage, entire Double glazed unit has to be replaced. In rare cases, a fault may develop in the unit, leading to condensation.

Reflective Glass

The metallic coating on top of the float glass reduces the impact of radiation. The special metallic coating also produces a mirror effect preventing a person from seeing through the glass. Reduces the impact of light and heat radiation from the sun. Enhances the effectiveness of air conditioners. Ideal for rooms exposed to the sun. View from outside is blocked during the day. The view from inside is clear After dark, view from outside becomes clear. Windows may require blinds at night.

Toughened Glass

Produced by applying a special treatment to ordinary float glass. The treatment involves heating the glass to very high temperatures (about 620 degrees C) so that it begins to soften; and then cooling it rapidly. Upto 4-5 times stronger than normal float glass. Provides enhanced security to windows. The glass cannot be re worked once thoughened. Glass likely to get damaged

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