Do you know which performance feature of doors and windows is most popular among people? Do you know which type of window is the first choice for many households?

It’s not safety, nor aesthetics. It’s the thermal insulation performance of doors and windows. Due to excessive exploitation of resources for industrial development, the environment has been polluted. This pollution has led to climate change.

Haven’t you noticed that summers are hotter and winters colder than before? Electricity bills are also increasing every year. Therefore, the thermal insulation performance of windows has begun to receive attention. Aluminum double pane windows have become the preferred choice for many households. They are known for their excellent thermal insulation performance, but are they really that effective?

Understanding Aluminum Double Pane Windows

Aluminum double pane windows consist of two pieces of glass separated by a space filled with gas, typically argon. Argon is an inert gas. It prefers not to interact with the outside world, much like a socially awkward person.

When the glass cavity is filled with argon, other air is rejected. This ensures a dry internal and external environment. This helps delay the occurrence of air leakage and prolongs the lifespan of the insulated glass. Some insulated glasses are filled with ordinary dry air. However, studies have shown that argon-filled glass can provide windows with about 10% more thermal insulation.

This is because argon has higher density and dynamic viscosity but lower thermal conductivity and specific volume compared to air. Filling it into insulated glass can reduce thermal convection and conduction within the glass. This lowers its thermal conductivity and the heat transfer coefficient (K-value).

The K-value represents the heat transfer rate per unit area per unit time when there is a temperature difference of 1K between the two sides of an exterior door or window under steady-state heat transfer conditions. The formula for calculating the K-value is: K=1/(1/Aw+δ/λ+1/An) W/(m2·°C). The smaller the value, the better the thermal insulation performance of the window.

Someone has calculated the K-values of ordinary single-pane glass, insulated glass, and double insulated glass. The results are: 6 for ordinary single-pane glass, 3 for insulated glass, and 1.5~1.8 for double insulated glass.

How Aluminum Window Parts Enhance Thermal Insulation

The key to the thermal insulation of aluminum double pane windows also lies in their aluminum window parts. After all, double insulated glass alone cannot be assembled into a window.

Although there is limited data on how aluminum window parts affect window insulation, they play a crucial role in various performance aspects of doors and windows. The sealing strips around the glass panes enhance the window’s sealing performance and prevent air leakage.

Profiles with thermal breaks have an inner surface temperature close to the indoor temperature. This reduces the possibility of indoor moisture condensing on the surface of the profile due to oversaturation. These aluminum window parts, when properly maintained, can effectively extend the lifespan of the window. The same applies to general aluminum windows.

Thermal Insulation Performance Data

Studies have shown that compared to general aluminum windows and single-pane insulated glass windows, aluminum double pane windows can reduce heat loss in buildings by up to 50%.

The credibility of this research can be judged based on their K-values. As mentioned earlier, a lower K-value indicates better thermal insulation performance.

Let’s take the aluminum double pane windows from KANOD Door and Window Manufacturer as an example. They use thermal break aluminum profiles with a K-value of 1.5-3.5, compared to 140-170 for ordinary aluminum profiles. The insulated glass structure they use has a K-value of 3.17-3.59, while the ordinary one is 6.69-6.84. The comparison should be self-explanatory.

KANOD’s design and configuration effectively reduce heat transfer through doors and windows. It not only provides you with a comfortable living environment that is warm in winter and cool in summer but also prevents you from being shocked by your electricity bill each month.

Besides thermal insulation, aluminum double pane windows can also block some penetrating low-frequency noises with strong penetration, such as traffic noise, construction sounds, and infrasound. If you use insulated glass structures with different thicknesses and thermal break aluminum profile cavity structures, you can effectively reduce the resonance effect of sound waves. This prevents sound transmission and reduces noise by more than 30dB.

Given their ability to ensure a comfortable living environment and provide a quiet indoor space, it’s no surprise that aluminum double pane windows are the preferred choice for many households.

If you’re worried about buying aluminum double pane windows that are just a name without substance, KANOD Door and Window Manufacturer can dispel your doubts. On the contrary, we can offer you more choices. KANOD can be so confident because we have our own production base. You can make an appointment to visit our production base and witness the quality and craftsmanship of our products in person.

At KANOD, you will hardly see the presence of general aluminum windows because our products are all precision-designed and rigorously tested high-quality products.