Breakage of Toughened Glass
Toughened glass has a high mechanical strength and high resistance to thermally generated stresses due to the surface compression induced into it during the tempering process. However, toughened glass is not unbreakable, and the causes of toughened glass are many and varied.
Examples are:
While Brisbane Glazing purchase glass from only reputable manufacturers known to consistently produce glass of suitable quality which includes (but not limited to) significantly reduced contaminants. Brisbane Glazing cannot be responsible for impurities or contaminants that may still inadvertently exist in microscopic quantities. It is not possible for either a glass manufacturer or Brisbane Glazing to detect such inclusions in the glass either through visual assessment or existing technologies in glass processing machinery.
In addition, Brisbane Glazing are not responsible for excessive stresses imparted to glass in design or for breakage reasons beyond Brisbane Glazing's control. Toughened safety glass breakage poses a minor risk of injury when compared to the potential for injury from breakage in annealed glass.
Examples are:
- Edge damage
- Edge defects
- Surface damage
- Edge or surface impact
- Excessively high temperature differences
- Structure movement or seismic drift overloading the glass at the edges
- Excessive stress loading around holes, notches, cut outs etc
- Rare inclusions in the raw glass such as nickel sulphide (these relate to spontaneous breakage)
- Improper glazing (including glass on metal contact)
While Brisbane Glazing purchase glass from only reputable manufacturers known to consistently produce glass of suitable quality which includes (but not limited to) significantly reduced contaminants. Brisbane Glazing cannot be responsible for impurities or contaminants that may still inadvertently exist in microscopic quantities. It is not possible for either a glass manufacturer or Brisbane Glazing to detect such inclusions in the glass either through visual assessment or existing technologies in glass processing machinery.
In addition, Brisbane Glazing are not responsible for excessive stresses imparted to glass in design or for breakage reasons beyond Brisbane Glazing's control. Toughened safety glass breakage poses a minor risk of injury when compared to the potential for injury from breakage in annealed glass.