To Glaze or Not to Glaze? 10 Facts About Window Glazing

You might not know this, but glazing refers to the glass thats utilised in window construction. In the last 100 years, window glazing has come a long way.

Historically, windows were glazed with a single pane of glass, inserted into wooden frames. As such, early windows were inefficient, difficult to weatherproof and susceptible to damage.

Todays window glazing options, on the other hand, are more efficient double, or triple-glazed windows are available longer-lasting, more weather-resistant and more structurally sound. Window manufacturers have also integrated new framing materials like aluminium and vinyl which make todays windows, even more, energy efficient.

Chances are, you dont have in-depth knowledge of window glazing. Many people shopping for Aluminium windows in Sydney arent aware of their options, but its fascinating to examine the types, efficiency ratings and features of todays window glazing. Here are 10 fast facts:

 

10 Facts About Window Glazing

 

Single Glazing Is More Energy Efficient Than Ever

Many people believe that a single pane of glass in the window just wont keep the building properly insulated. Yet, new technology and updates in frame construction like enhanced weather-stripping have made single-paned glass more efficient than ever.

 

Special Coatings Help to Make Glazing More Efficient

Your buildings windows allow a lot of natural light to pass through. This energy can cause unwanted heat gain inside the building. Low Emissivity, or Low E, coating offers a solution that can enhance glazing. Essentially, this type of coating limits the amount of solar heat that can pass through, helping to limit your reliance on cooling. Glazing with Low-E coating is commonly referred to as SmartGlass.

 

Double- and Triple-Glazed Windows Add Insulation

Whats the point of an extra layer of glass? Double-glazed windows, or double hung windows, have a natural barrier between each layer of glazing. This natural barrier helps to maximise the insulating value of the window. In fact, double- and triple-paned windows can cut energy savings by 20 percent or more.

 

Gas Fills Between Glazing Improves Insulation

You can fill windows with gas? It sounds outlandish, but its true. Gas fills between layers of glazing have been used for the last few decades. Typically, an odourless gas like Argon is pumped between the glazing, which improves the thermal performance of the natural barrier between layers of glass.

 

Glazing Typically Has a Pale Green Tint

The chemical composition of glass adds a greenish colour to the glass. In fact, this green colour becomes more noticeable the thicker the layer of glazing. Many manufacturers produce special clear glass, which requires a specialised manufacturing process. If you look at a glass Coca-Cola bottle, youve seen this phenomenon at work.

 

Thermal Glazing Offers Superior Performance

What type of glazing is most efficient? Double- and triple-glazed windows with Low-E coating offer the best performance on the market. This type of glazing is so effective at limiting heat gain that its referred to as thermal glazing.Double- and triple-glazed windows with Low-E coatings can reduce heat gain by nearly 70 percent, compared to single glazed windows.

 

Toughened Glazing Is Created from Two Panes of Glass

Safety glass is resistant to impact, and its utilised across Australia in areas with high winds and tropical storms. Essentially, toughened glass, or safety glass, is created by fusing two or more glass panels together with a layer of PVB in the middle. This type of glazing is also shatter-resistant, making it ideal for glass walls and windows located near streets.

 

Glazing Is Available in A Range of Finishes

Although clear glass is most common, thats not your only option. Tinted and frosted glass are two other common types of finishes. Both treatments can be applied to existing glazing, but are also available as pre-fabricated options.

 

Thermal Glazing Improves Insulation Significantly

Thermal glazing isnt just great at reducing solar heat gain; it can also greatly improve the windows insulation value. Compared to single-glazed units, thermal glazing can improve insulation by nearly 40 percent. In green buildings, or windows that receive lots of direct sunlight, thermal glazing is the best option.

 

Drying Agents Help Prevent Condensation Between Double Glazing

A common concern for people installing double glazed windows is condensation. Fortunately, the majority of manufacturers use a desiccant, or drying agent, to absorb moisture and prevent condensation.

Window glazing has evolved greatly from the earliest glass windows. Today, glazing is available in a range of finishes, designed for maximum efficiency, and can withstand gale-force winds.

 

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