Heat strengthened glass
Heat-strengthened glass is recommended for designing
building facades. Its typical radial breaking properties also ensure a maximum
safety standard, because the glass remains in the frame. Heat-strengthened
glass has even higher quality surface characteristics as compared to tempered
glass. Moreover, heat-strengthened glass eliminates the danger of occasional
spontaneous breakage, as can occur with tempered glass as a result of nickel
Heat-strengthened glass offers higher mechanical and thermal strength than
annealed glass, while retaining other normal properties.
Heat strengthened glass has approximately twice the mechanical and thermal
strength of annealed glass of equal thickness.
With the exception of strength and breakage characteristics, heat-strengthened
glass retains the normal properties of annealed glass, including chemical
resistance, hardness, expansion and deflection.
Heat-strengthened glass normally has a breakage pattern of large pieces,
similar to the breakage pattern of annealed glass. The exact nature of the
break pattern depends on the intensity of the applied load, position of the
break origin, the glass temperature and the related factors.
Heat-strengthened glass is hardly prone to spontaneous breakage than
Suitable for use in spandrel and/or vision areas where added resistance to
wind load and thermal stress is required.
High wind load areas
Minimum dimensions: 290 x 210 mm
Maximum dimensions: 2800 x 5400 mm
Thickness 4 to 15 mm