Choosing Triple Glaze Windows
Triple Glazed Windows - Advantages
- triple glazing should give better Insulation (lower uValues), than double glazing.
- give a better “Acoustic” rating, where noise is an issue eg. busy roads, airports.
- consist of three panes of glass.
- each pane of glass is separated by a spacer bar, which creates an air gap or cavity
- the cavities provides the insulation and reduces condensation
- argon gas between the panes insulates better than air
- reduces energy usage in a new home
Triple Glaze Windows – Disadvantages
- are 50% heavier than double glazed windows
- reduce the amount of light entering a room due to three panes
- are more expensive than double glazing
What to watch out for!
Beware of companies offering to “throw in” triple glazing for the same price as double glazing. Poor quality triple glazed windows can mean that you get NO performance improvement, however the weight of the glass can lead to problems. It is vital therefore that the hinges used in triple glazed windows are capable of carrying this additional weight over the entire lifetime of the windows. Carlson supply the highest quality triple glazed windows.in Ireland. See what our customers say about us.
Most Effective Insulation
The space between each pane of glass determines how effective the insulation is. The cavities should have the following depths:
- in a double glazing unit - a 16mm cavity
- Triple glazing units need two spacer bars each with a 20mm cavity,
- So if a pane of standard glass is typically 4mm,
- then the ideal depth of a double glazed unit is 4 + 16 + 4 = 24mm.
- and the ideal depth of a triple glazed unit is 4 + 20 +4 + 20 +4 = 52mm!
What to avoid!
Beware of companies who avoid the expense of developing a new triple glazed window profile and instead simply uses their existing double glazed profile and try to “shoehorn” a triple glazed unit into say 24mm or even 28mm. This means each cavity is only 8mm to 10mm not 20mm. Cavities of only 8mm to 10mm simply can not give the insulating performance required and will be a sub-standard triple glazed window . A high performance double glazed window will often outperform a poorer quality triple glazed window.
Are Triple Glazed Windows better than Double Glazed?
Generally Triple Glazed Windows suits houses that have comprehensive insulation throughout to include the walls, roof etc. so that the benefit gained by the triple glazed windows is not lost through other parts of the house. So for your own home it is worth looking at the following:
- The existing insulation in the roof and walls
- The orientation of your house
- Whether noise reduction is important
- Where and how much glazing you are looking to install
The perfect scenario would be to use triple glazing on the North facing aspect of the house to achieve optimum Insulation - with no direct sunlight there is no solar gain. Then on the East, South and West facing aspects use double glazed windows to achieve the balance between Insulation and any solar gain that might be available. For more information contact our experienced staff who can help advise you.