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Light & Warm Window

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Which window should I choose, a single window or a double window?

In terms of warmth, thick clothes are generally warmer than thin clothes. However, high-functional windscreen materials such as thin goose jackets and Gore-Tex can be lighter and warmer than thick fluffy clothing.

This is because many layers of air that goose feathers have increase insulation rather than ordinary wool. In other words, objects of the same thickness are relatively insulating, with many layers of air isolated in the interior space. Styrofoam is highly insulating because it was fired in the same way as puffed rice during manufacturing, forming many isolated air layers inside.

Would you like to install a thick double window over 230mm where the existing 180mm window was installed?

Even though the clothes are thin, light, and warm functional materials are expensive, they are highly preferred...
Do you want to stick to only double windows that are bigger and more uncomfortable to use than the single windows?

The double window is wider than the single window, so you can think of it as highly insulating. But if the space between the windows is directly connected to the outside, that is, if the inner air layer is directly mixed with the outer air layer, it becomes meaningless.
In this respect, depending on the insulation or the airtightness of the single window, it may be more thermal than the double window. The simple way to distinguish this performance is to compare the thermal perfusion rate and the air-tightness shown in the energy consumption efficiency rating table. Whether it's a double window or a single window, the lower of these two performance indicators is a better insulation window.

The Homepack is a high-functional window that can maintain the comfort of the interior space with
excellent air-tightness and warmth even if installed with a thin and light single window.