Insulated Glass Units / Double Glazing
Commonly known as Double Glazing, IGUs consist of 2 (or more) panes of glass that are kept separated by air or gas. By providing thermal resistance, IGUs are an effective system by which the reduction of heat transfer is achieved. Buildings can achieve substantial energy savings through the minimization of heat loss in cold weather conditions, the inverse is also attained through the reduction of heat in warm weather conditions.
WHAT IS AN IGU
An insulated glass unit (IGU or DGU) combines multiple glass panes into a single window system.
Most IGUs are double glazed (two panes of glass) however triple glazing (three panes of glass) is becoming more common due to Australia’s higher energy costs. The panes of glass in IGUs are separated by a spacer and a still layer of air or gas.
The glass is then fitted into window frames, which are made wider to accommodate the additional panes.
BENEFITS OF AN IGU
- Double glazed units are an ideal energy efficient choice with the added benefit of minimising noise.
- The sealed air gap between the two panes acts as an added layer of insulation. This added thermal resistance reduces the amount of heat escaping in winter and keeps your home at a more comfortable temperature. Double glazing has the reverse effect in summer, preventing unwanted heat coming into the home. This extra insulation lessens your reliance on artificial heaters and air conditioners and can ultimately reduce your energy costs.
- Double glazed units also reduce condensation which can result in the unhealthy formation of mould.
- Sealed double glazing is effective at reducing medium to high frequency noise.
- A difference in glass thickness between the inner and outer panes will improve noise reduction even further.
- Double glazed windows are considered a safer option when compared to a standard single glaze pane window.
- Two sheets of glass are a lot harder to break than one, and where required for even greater security you can specify toughened or laminated glass.
TYPES OF GLASS USED
A wide range of glass can be used in a double glazed unit to further increase energy efficiency and
noise control. Low e glass types will further reduce the amount of heat escaping while thicker laminate panes disrupt sound waves to improve acoustic performance.
LIMITATIONS/SIZES POA
PERFORMANCE DATA DEFINITIONS
ACOUSTIC PERFORMANCE
SPACER BARS AVAILIBLE
Colonial bar IGU
Spacer bar grid
A double spacer configuration can also be specified to achieve a wider than usual igu, this is done by
attaching 2 x internal spacers bars together.
Custom IGUs (leadlight & curved) POA
Shaped IGUs POA
Integrated blind/screen IGUs POA
Oversize IGUs POA
Pyranova IGUs (Fired Rated) POA
