Triple Pane vs Quadruple Pane Window Glass
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Triple Pane vs Quadruple Pane Window Glass

The energy efficiency of your home is one of the most important factors in determining your monthly energy costs. Much of it is governed by the kind of insulation your windows offer. According to the U.S. Department of Energy, the heat gained and heat lost through windows is responsible for 25%-30% of residential heating and cooling energy use.

Modern technology has provided us with several insulated window options that can help reduce energy spending. And so, let’s discuss two of the highest performing insulated glass options, Triple Pane and Quadruple Glass windows. Use the links below to jump ahead in this post.

What are Triple Pane Windows?

As the name suggests, Triple Pane Windows contain three panes of glass. A triple-pane window has two air "pockets" between the three panes of glass, these are filled with a non-toxic gas, usually argon, to reduce thermal conduction. When replacement windows began featuring triple glazing back in the early ‘80s↗, it was mainly because customers wanted better-insulated windows. At the time, double-pane windows were gaining popularity and many homes still had single-pane windows. Today, double-pane windows are the standard but triple-pane windows meet the demand for energy-efficiency in colder climates. 

Pros of Triple Pane Glass

  • The topmost benefit that stands out is energy efficiency (low U-value). Triple Pane windows come with a direct improvement of 20-30%↗ on energy savings, by decreasing your heating bills.
  • Window condensation is reduced to negligible levels. The three layers of glass makes it more harder for exterior temperatures to cause condensation. 
  • In addition to improved energy-performance, triple pane windows stand out for their ability to reduce noise intrusion—a major benefit for anyone living in cold and noisy cities. 

Cons of Triple Pane Glass

  • If you’ve been using double-pane windows for quite a while, you might have to pay at least 10 to 15% more↗ to switch to triple pane glass, and it can take up to 30 years or more to fully recoup this amount through energy savings.
  • Upgrading from a double-pane or single-pane window system can be problematic, as triple-glazing windows are bulkier and require more space for a proper installation. 

What are Quadruple Pane Windows?

Quadruple Pane Windows, or Quad Glazed Windows, possess four high-performance layers of glass, with three Argon-filled sealed air-spaces in between. With an added pane of glass, they are a solid upgrade over the triple-pane window system in terms of insulation, heat transfer and other aspects as well. Let’s take a look at both the upsides and downsides of quadruple pane glasses in windows.

Pros of Quad Pane Glass

  • Quadruple pane windows offer better u-values than triple pane windows. To illustrate consider that quad pane windows can be better insulated than a house wall or an insulated garage door.
  • Multi-pane windows like these have effective sound deadening properties. This makes the house quieter by keeping unwanted noise out, creating the perfect distraction-less atmosphere for you to concentrate at home.
  • Prevents condensation on the windows during winter temperatures, keeping the outdoor view crystal clear.

Cons of Quad Pane Glass

  • Due to the requirement of four glass panes, they are naturally more heavy and require tougher, more durable window frames. And as expected, it is harder to install large quadruple glazed windows when required.
  • Quadruple glazing can be twice as expensive as triple glazing but is only able to provide just 20% more↗ thermal resistance. 

Should I Choose Triple or Quad Pane Window Glass?

Firstly, Quadruple pane glass windows are beginning to take over the market, but there’s still a long way to go. Manufacturers, Installers and Customers are all undergoing a seismic shift to incorporate an extra glass pane. And it is only fair that the higher price point might not sit well with households that have already found enough comfort in other window systems.

Secondly, at severely cold geographical locations where insulation and energy efficiency just cannot be compromised with, quadruple pane glass windows are a no-brainer. While triple panes also work fine in such environments, quad glazed windows really seal the deal for when the mercury plummets abysmally. Triple-pane windows are more common in Northern states, here in the U.S. while quad-pane windows are much less common. 

Consider Your Options Before You Buy

When it is about soundproofing and insulating your home, choosing the correct window system becomes very important. And with technology having grown by leaps and bounds, it is instrumental that you weigh the pros and cons of each option, and pick the one that suits your budget well, and maintains that ideal ambiance at home.

In the same breath, it also makes sense to know that while triple and quadruple pane windows are highly efficient, double-pane windows can are also effective in many states. And if noise reduction is a primary concern, dissimilar glass windows are also a good option.

September 04, 2020
July 13, 2021


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