Why are argon-filled windows preferable?
Double glazing is standard among new homes, and homeowners with older properties tend to replace old windows with uPVC double glazed options when they can. But have you ever stopped to consider just how double glazing can benefit your home?
A double glazing window comprises two panes of glass, separated by a spacer bar and seals to create a hermetically-sealed environment. The cavity between the two panes, air or another gas filling used and the type of spacer bar, are all key factors in the unit’s final energy, solar and acoustic insulation properties.
The cavity is filled under vacuum conditions with either dehydrated air or an inert gas to improve insulation and prevent condensation within the unit.
Double glazing window energy efficiency can be further increased by substituting dehydrated air with an inert gas, such as argon, xenon or krypton within the unit. Argon, which has 34% lower thermal conductivity than air, is the most commonly used. Although argon-filled units cost around 5% more than air-filled units, they can improve a double glazing window’s U value or energy rating by over 30%. Argon fillings should last the lifetime of a double glazing window and over a period of 25 years should not lose more than 5%.
Argon Gas Windows Benefits:
• lowest U value
• Reduces the possibility of condens
• Your heating and cooling systems will work more efficiently when you install argon gas