22/08/25

Double-glazed windows for PVC windows: types and selection features

What is a double-glazed window

A double-glazed window is the main translucent part of a modern window, consisting of two or more panes of glass separated by a spacer frame. A sealed chamber filled with dry air or inert gas is formed between the panes, providing excellent thermal insulation properties.

Main types of double-glazed windows

A single-chamber double-glazed window consists of two panes of glass and one chamber between them. This is the lightest and most economical option, suitable for summer cottages and outbuildings.

A double-glazed window includes three panes of glass and two chambers. This design provides increased thermal insulation and noise protection, ideal for residential premises in regions with cold climates.

A triple-glazed window is a premium solution with four panes of glass and three chambers. It is rarely used due to its significant weight and cost, but it provides maximum protection from cold and noise.

Special types of double-glazed windows

Energy-saving double-glazed windows are equipped with a special coating that reflects thermal radiation back into the room. They are especially effective in winter.

Noise-insulating double-glazed windows have glass of different thicknesses, which improves protection from external noise. They are suitable for rooms near noisy highways.

Multifunctional double-glazed windows combine energy-saving and sun protection properties. They are ideal for southern windows.

How to choose the right double-glazed window

When choosing, it is important to consider:

• Climatic conditions of the region

• Purpose of the room

• Orientation of windows to the cardinal points

• Budget for installation

• Soundproofing requirements

Practical recommendations

For city apartments, double-glazed windows with an energy-saving coating are optimal. In private houses you can use:

• Energy-saving packages for northern windows

• Multifunctional - for southern ones

• Standard double-chamber - for other sides

Important characteristics

The thickness of the glass affects the strength and sound insulation. The standard thickness is 4 mm, but you can order glass with a thickness of 5-6 mm for better protection.

The chambers can be filled with air or inert gases (argon, krypton), which improves thermal insulation properties.

The width of the glass unit varies from 16 to 42 mm. Wider designs provide better insulation, but increase the weight of the window.

A correctly selected glass unit will not only ensure comfort in the room, but will also help save on heating. When choosing, it is worth consulting with specialists, taking into account all the features of a particular object.