Discern with Wisdom: Easily Identify the Quality of Architectural Glass

II. Dimensional Accuracy and Edge Cutting

The dimensions of architectural glass must strictly meet the design requirements, and the errors in length, width, and thickness should be controlled within a very small range. In building construction, especially in large glass curtain wall projects, the dimensional accuracy of the glass affects the installation efficiency and quality.

If the glass is too large, it may not fit into the frame smoothly, and forced installation will cause uneven stress on the glass and lead to breakage; if it is too small, gaps will be left, affecting the airtightness, watertightness, and thermal insulation performance of the building.

Inspecting the edge cutting of the glass is also extremely important. The edges of high-quality glass should be smooth and neat, without burrs or notches. Rough edges can easily cause injuries during handling and installation and may also damage window frames or other adjacent materials, affecting the stability and sealing of the building structure.

III. Identification of Safety Glass
 

(A) Tempered Glass
Tempered glass must have a 3C certification mark, which is an important proof of its quality compliance. When purchasing, pay attention to the corners or edges of the glass and check whether the 3C mark is clear, complete, and not easily erasable. If there is a problem with the mark, the quality of the glass is questionable.
 

If possible, observe the state of the tempered glass after breakage. It will be found that it is in the form of small obtuse-angled particles. This is due to the change in the internal stress structure of the glass caused by the tempering process. Compared with the sharp fragments of ordinary glass after breakage, the risk of serious scratches to the human body is greatly reduced.

(B) Laminated Glass
The key to inspecting laminated glass lies in its internal interlayer. Place the glass in a well-lit area and check whether the interlayer is uniform. The interlayer of high-quality laminated glass should be flat and uniform, without obvious thickness differences or bubbles. Bubbles in the interlayer will reduce the adhesion, and the interlayer is prone to separation when subjected to external impact, affecting the safety of the glass.
 

At the same time, check whether there is delamination in the interlayer. Gently press the edge of the glass. If there is displacement or separation between the interlayer and the glass, it indicates that the laminated glass may have quality defects.