The Function of Gas Filling in Double Glazing

A gas filling is a critical component of double-glazed windows and doors, significantly enhancing their thermal performance. In this article, we will explore the function of gas filling in double glazing and the different types of gases used.

 

How Gas Filling Enhances Double Glazing Performance

Creating a Thermal Barrier: The primary function of gas filling in double-glazed windows and doors is to create a thermal barrier. The space between the two glass panes is filled with gas, which acts as an insulator, reducing heat transfer between the interior and exterior environments.

Reducing Convection: Gas-filled double glazing also reduces heat transfer by convection. The gas filling slows down the movement of air between the glass panes, minimising the circulation of heat.

Minimising Heat Loss: Gases have lower thermal conductivity than air, transferring heat less efficiently. When used in double glazing, this property helps minimise heat loss during cold months and heat gain during warm months.

 

Common Gases Used in Double Glazing

Argon: Argon is the most widely used gas in double glazing due to its low thermal conductivity and cost-effectiveness. It is approximately 34% more insulating than air, making it an excellent choice for improving the thermal performance of double-glazed windows and doors.

Krypton: Another gas utilised in double glazing is krypton, which has insulating characteristics that are even superior to argon ones. Yet, due to its increased cost, it is used far less frequently and is more expensive. Krypton is most efficient when there is a small amount of space between the individual panes of glass, such as in triple glazing.

Xenon: Xenon is the gas used in double glazing less frequently than any other gas, although it provides the best level of insulation. Because it is expensive, it is often only used for specialist applications or windows with a high-performance level.

 

The Importance of Gas Retention in Double Glazing

For gas-filled double glazing to maintain its performance over time, it is crucial to ensure the gas remains within the sealed unit. Factors that can affect gas retention include:

  • Quality of Seals: The seals around the glass panes must be high quality to prevent gas leakage over time. A well-sealed unit can maintain its insulating properties for 10 to 20 years.
  • Professional Installation: Proper installation is essential to ensure the gas-filled unit remains intact and maintains its thermal performance.

 

Assessing the Energy Performance of Gas-Filled Double Glazing

When comparing different gas-filled double-glazed windows and doors, it’s essential to understand the energy performance metrics:

  • U-Value: The U-value measures the heat transfer rate through the window or door. A lower U-value indicates better insulation.
  • Solar Heat Gain Coefficient (SHGC): The SHGC measures the amount of solar heat that passes through the window or door. A lower SHGC indicates less heat gain during the warmer months.
  • Air Leakage (AL): AL measures the air infiltration through the window or door assembly. A lower AL indicates better air tightness.

 

Gas filling plays a vital role in the thermal performance of double-glazed windows and doors, creating a thermal barrier that reduces heat transfer between the interior and exterior environments. Typical gases used in double glazing include argon, krypton, and xenon, each offering different insulation levels. Ensuring high-quality seals and professional installation is essential to maintain the insulating properties of gas-filled double glazing.

Latest Posts

  • Commercial Glazing
  • Double Glazing
  • Emergency Glass Repair
  • Glass Cut to Size
  • Glass Engraving
  • Glass Installation
  • Glass Repair
  • Glass/Window Replacement
  • Glazier

LET'S TALK GLASS!
Send Us Your Enquiry

OR SPEAK TO OUR TEAM

Artarmon Glass Repair
Avalon Beach Glass Repair
Balgowlah Glass Repair
Balmain Glass Repair
Bellevue Hill Glass Repair
Bilgola Beach Glass Repair
Bilgola Plateau Glass Repair
Birchgrove Glass Repair
Bondi Beach Glass Repair
Bondi Junction Glass Repair
Bonnet Bay Glass Repair
Cammeray Glass Repair
Caringbah Glass Repair
Carss Park Glass Repair
Castlecrag Glass Repair
Chatswood Glass Repair
Como Glass Repair
Coogee Glass Repair
Cremorne Glass Repair
Cremorne Point Glass Repair
Cronulla Glass Repair
Crows Nest Glass Repair
Darling Point Glass Repair
Darlinghurst Glass Repair
Dawes Point Glass Repair
Dee Why Glass Repair
Double Bay Glass Repair
Edgecliff Glass Repair
Elizabeth Bay Glass Repair
Engadine Glass Repair
Forestville Glass Repair
Frenchs Forest Glass Repair
Glebe Glass Repair
Gordon Glass Repair
Greenwich Glass Repair
Gymea Glass Repair
Haymarket Glass Repair
Hornsby Glass Repair
Illawong Glass Repair
Jannali Glass Repair
Kareela Glass Repair
Killarney Heights Glass Repair
Kirrawee Glass Repair
Kirribilli Glass Repair
Kogarah Glass Repair
Kurraba Point Glass Repair
La Perouse Glass Repair
Lane Cove Glass Repair
Lane Cove West Glass Repair
Lavender Bay Glass Repair
Lindfield Glass Repair
Manly Vale Glass Repair
McMahons Point Glass Repair
Meadowbank Glass Repair
Middle Cove Glass Repair
Millers Point Glass Repair
Milsons Point Glass Repair
Mona Vale Glass Repair
Mortdale Glass Repair
Mosman Glass Repair
Naremburn Glass Repair
Narrabeen Glass Repair
Neutral Bay Glass Repair
Newport Glass Repair
North Narrabeen Glass Repair
North Sydney Glass Repair
Northbridge Glass Repair
Oatley Glass Repair
Oyster Bay Glass Repair
Paddington Glass Repair
Parramatta Glass Repair
Pennant Hills Glass Repair
Potts Point Glass Repair
Pyrmont Glass Repair
Queens Park Glass Repair
Randwick Glass Repair
Rose Bay Glass Repair
Roseville Glass Repair
Rushcutters Bay Glass Repair
St Leonards Glass Repair
Surry Hills Glass Repair
Sutherland Glass Repair
Sydney Glass Repair
Tamarama Glass Repair
The Rocks Glass Repair
Thornleigh Glass Repair
Ultimo Glass Repair
Vaucluse Glass Repair
Warwick Farm Glass Repair
Waverley Glass Repair
Waverton Glass Repair
West Pymble Glass Repair
Whale Beach Glass Repair
Willoughby Glass Repair
Wollstonecraft Glass Repair
Woollahra Glass Repair
Woolloomooloo Glass Repair
Woolooware Glass Repair
Woronora Glass Repair

CONTACT US

P : 02 7255 2217

A : 24 Derbyshire Rd, Leichhardt NSW 2040

© Copyright 2023 Glazier Sydney | Privacy Policy | Terms of Services | Sitemap

Call Now ButtonCall Now