Glass
Windows aren’t just part of your home’s framework. They can add light and life, warmth and beauty. That’s why choosing the right glass is so important.
There’s nothing like natural light to brighten up your home. Let us help you provide the maximum transfer of light and energy from the sun, allowing it to be distributed generously throughout the room.
As part of a total window system, glass can help boost the energy efficiency of you windows and help you achieve an ENERGY STAR* mark for your home. Just talk to us about how and which products can do this.
Get to know your glass
Low-emissivity (low-e) glass
Glass with an almost invisible coating contained on the inside pane of an insulated glass unit (IGU). This coating lets the sun’s light and energy into your home and reflect heat back indoors, forming a shield against the cold. In warmer climates low-e glass can be used to keep the heat out.
U-value
The measure of air-to-air heat transfer through glass and the difference between the indoor and outdoor temperatures. The lower the U-value, the lower the heat transfer and the better the insulation.
R-value
The thermal resistance of the total window system (including glass, spacer and joinery type). The higher the R-value, the less heat that is lost through the system and the better the insulation.
Shading co-efficient
The ratio of total solar heat gain through a particular glass type compared to the total heat gain through 3mm clear glass. The lower the shading co-efficient, he more the glass restricts the transfer of solar heat.
Visible light transmission
The percentage of visible light transmitted through the glass. The higher the VLT, the more natural light enters the room.
Argon
A noble gas used inside a double or triple glazed unit. It restricts the transfer of heat and provides greater insulation.
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