SAFETY GLASS

Safety glass

Advantages

Safety glass provides resistance to impact and offers protection against injury and deliberate attack.

TEMPORARY PROTECTION AGAINST BREAK-IN ATTEMPTS

Glass can be the weakest element of a house. Modern solutions, such as toughened or laminated glass can provide extra security.

Types of safety glass:

  • Laminated
  • Toughened

SAFETY GLASS

LAMINATED glass

ADVANTAGES

Laminated glass is a type of safety glass that holds together when shattered. In the event of breaking, it is held in place by an interlayer, typically of polyvinyl butyral (PVB), between its two or more layers of glass.

The interlayer keeps the layers of glass bonded even when broken, and its high strength prevents the glass from breaking up into large sharp pieces. This produces a characteristic “spider web” cracking pattern when the impact is not enough to completely pierce the glass.

PVB INTERLAYER OFFERING

A HIGH LEVEL OF SOUND INSULATION

Laminated glass is normally used where there is a possibility of human impact or where the glass could fall if shattered. The PVB interlayer also gives the glass a much higher sound insulation rating, due to the damping effect, and blocks 99% of incoming UV radiation. Laminated glass with specialist PVB interlayers, known as acoustic laminates, further improve sound reduction.

Glass Systems stock laminated glass in thicknesses ranging from 6.4mm to 10.8mm, which are available in clear, Ecopane, Ecoplus, anti-sun and opal.

Comparison of Acoustic Properties

With Layered panes of Glass.

Structure [mm] Acoustic insulation indicator
and adaptive indicators [dB]
Rw Ctr C
6 31 -3 -2
6,4 (VSG 33.1) 32 -3 -1
8 32 -3 -2
8,4 (VSG 44.4) 34 -3 -1

SAFETY GLASS

TOUGHENED glass

ADVANTAGES

Glass is naturally fragile. Toughened glass provides a safety feature upon breakage as the pane shatters into tiny pieces. It is used in an increasing number of applications where safety glass is required in accordance with BS-EN 12600 specifications, such as doors, side screens and low-level glazing.

In addition to the safety features, toughened glass is highly resilient to thermal stress.

When glass is placed through the toughening process, the internal stresses within its structure change, which increases the glass’s flexibility and strength.

Glass is cut to the required size and its edges are ground. This makes the glass more durable and less vulnerable to stress. The glass is then placed through a toughening furnace where it is exposed to heat of up to 750 degrees. By heating and cooling the glass quickly this changes the molecular structure of the glass and gives it a very high outer tensile strength.

Toughened glass is available in thicknesses ranging from 4mm to 10mm, which are available in the different glass types we stock; clear, low-iron, patterned, anti-sun, Ecopane, Ecoplus, Sun-Control and Eco-Clean.

Market

offer

Toughening
type
Glass thickness
[mm]
Minimum dimensions
[mm]
Standard 4 100×250
6 100×250
8-10 100×250

Toughened glass is available in thicknesses from 4mm-10mm and in the different glass types we stock – clear, patterned, low-E, solar control and self-cleaning glass.

SUMMARY

OF ADVANTAGES

LAMINATED PANES

TOUGHENED GLASS

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