The standard method for laminating glass units together with an interlayer is to use a PVB interlayer that is adhered between pieces of glass under heat and pressure.
The resulting piece of glass is stronger and safer than monolithic glass alone and can be used to create very safe, incredibly strong glass panels suitable for hurricane rated installations.
Laminating annealed glass panels can create a ‘safety glass’ suitable for use in critical areas of glazing. When broken the interlayer holds the broken elements of glass together minimising any risk of injury. It is important to note however that annealed glass alone is not classed as a safety glass.
Toughened glass panels can also be laminated together to create stronger pieces of glass for use in structural glass assemblies. Toughened glass also has greater resistance to thermal shock than normal annealed glass.
PVB interlayers also block up to 99% of UV radiation from travelling through glass units. UV radiation is the highest cause of colour fading on internal real wood floors, fabrics and art.
Interlayer laminated glass units can be used both in fixed glazing and framed glazing. The thickness of PVB interlayer used depends on the glass size and the mechanical load the glass unit is designed to take. These thicknesses range from 0.78mmfor general glazing up to 2.28mm for hurricane-rated glazing.