Double Glazing
Understanding glazing
Consists of two panes of glass with an air or gas-filled gap in between, acting as an insulating barrier. This reduces heat transfer, helping keep homes warmer in winter and cooler in summer. Adding a Low-E coating, which is highly recommended, reflects heat back inside, further improving thermal performance. Please see below for why we recommend it.
Double glazing traps a layer of air between two panes of glass, substantially reducing heat lose through the window because air is a poor conductor of heat. Adding a Low E coating to the inside of one of the panes of glass can further improve insulation because the coating reflects heat back into the room.
Benefits of choosing double glazing
Better insulation – Retains warmth in winter and keeps heat out in summer.
Lower energy bills – Reduces the need for heating and cooling.
Less condensation – Helps prevent moisture buildup on windows.
Improved noise reduction – Ideal for homes in busy or high-traffic areas.
Enhanced security – Multiple panes offer increased resistance to break-ins
Compliance with the New Zealand Building Code – Low-E double glazing is now typically required in new builds.
For most homes in New Zealand, double glazing offers a significant improvement in warmth and efficiency.