1. Heat-strengthened glass cannot be cut, pierced, and chipped off after the production of manufactured into heat-strengthened glass. Thus, measuring areas carefully is necessary, and we encourage to use the unit of 'millimeter' for an accuracy. Allowing it to be slightly loose will enable to install glass easier, yet it shouldn't be too loose to slip out of glass moldings.
2. A single piece of heat-strengthened glass should not be used for making a roof or a wall of high-rise buildings as it is possible to fall over in case glass is broken.
3. A single piece of heat-strengthened glass should not be applied for floor making, pedestrian areas, or staircase as people can fall down immediately when the glass is broken, and it can harm people down there as well.
4. The selection of using heat-strengthened glass instead of tempered glass requires thorough calculation of receiving forces along with a concern of an installment whether there will be any severe dangers or not.
5. Heat-strengthened glass cannot be used as a substitution for fire-proof glass since heat-strengthened glass cannot resist fire and provide safety for residents according to the restriction of fire-proof.
The way to detect a Heat-strengthened glass
Heat-strengthened glass has the same issue in detection as tempered glass does, and it can be examined by using the same means. In case of smashing, heat-strengthened glass will break by having cracks running towards a glass frame with no small pieces around the center of breakage.
Using polaroid film can also be applied as it can enable us to see line of force that exists around the glass edge. This particular line of force can be seen in both heat-strengthened glass and tempered glass.