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Understanding Fixed Windows: A Comprehensive Guide

Time : 2023-03-29 Hits : 6

Fixed windows are windows that cannot be opened by directly glazing the window frame or fixing the sash to the window frame. It is only used for lighting and viewing. It is commonly used for lighting windows in walkways, stairwells, and certain parts of general windows.

Introduction to fixed windows

Fixed windows are mainly used for lighting and viewing purposes, and are fixed window types that embed glass windows into the window frame and the sash cannot be opened or closed. Due to its pure function, fixed windows can be designed in various shapes to create a personalized architectural appearance. Due to the inability to open and close, it is necessary to consider how to clean. Fixed windows have a simple appearance and are widely used in various buildings.

"Three characteristics" of doors and windows


The physical properties of doors and windows mainly include six aspects: air permeability, rainwater leakage, wind pressure resistance, thermal insulation, sound insulation, and lighting performance. The latter three types of performance are selected and controlled based on the specific needs of the room's functions; The first three properties are the basic three properties of building doors and windows, commonly referred to as the "three properties" of doors and windows. According to the provisions of "Grading and Testing Methods for Air Tightness, Water Tightness, and Wind Pressure Resistance of Exterior Windows and Doors in Buildings" (GBT7106-2008), exterior windows and doors in buildings are classified according to different performance indicators.

Air tightness index of doors and windows: The classification of air tightness performance of doors and windows is based on the air permeability q1 per unit opening seam length and the air permeability q2 per unit area at a pressure difference of 10 Pa under standard conditions. The external doors and windows of the building are divided into 8 levels.

Water tightness index of doors and windows: The classification of water tightness performance of doors and windows is to use the pressure difference of the previous level of severe leakage pressure difference as the classification index, and divide the external doors and windows of the building into 6 levels.

Wind pressure resistance index of doors and windows: The grading of wind pressure resistance performance of doors and windows is based on the grading test pressure difference P3 as the grading index, and the external doors and windows of the building are divided into 9 levels.

In addition, building doors and windows also have relevant standards and grading indicators in terms of air sound insulation performance, thermal insulation performance, and lighting performance. Therefore, in the selection of doors and windows, the type and grade of doors and windows should be reasonably determined and selected based on factors such as climate, building height, and room usage requirements in each region, and the requirements of relevant performance indicators should be met.

Characteristics of fixed windows

The window frame of the fixed window is embedded in the wall, and the glass is directly installed on the window frame. The joints between the glass and the window frame were previously sealed with adhesive strips, which are easily peeled off due to changes in heat and cold. Now, sealant has been used to seal the four sides of the contact between the glass and the window frame. If the sealant is tightly sealed, it has good water tightness and air tightness. It is difficult for air to form convection through the sealant, so there is very little convective heat loss. The main reason for the loss is the heat conduction of glass and window frames. For large areas of glass and a small amount of window frame profiles, effective measures can be taken in terms of material and form, which can greatly improve the energy-saving effect. Structurally, fixed windows are the most ideal window type for energy-saving effects.

How to choose the right fixed window for your home.

When choosing a fixed window for your home, there are several factors to consider. First, consider the size and placement of the window. Fixed windows are often used in areas where ventilation is not necessary, such as high on a wall or in a room with other windows that can be opened. Next, consider the frame material and color, as well as any additional features such as energy efficiency or soundproofing. Finally, make sure to choose a reputable installer who can ensure proper installation and sealing to prevent air leaks or water damage.

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