Glass is a dangerous material.
When standard glass breaks, it can form dangerous shards and splinters. To avoid risk, toughened, laminated & wire glass are available.

Safety glass is now mandatory in some areas of your home, under Fensa regulations.
Standard requirements ; it must be able to resist an impact of 45g without breaking, or break safely.

Laminated glass: is comprised of one or more interlayers, sandwiched between two or more sheets of float glass. The interlayers are composed of a PVB interlayers. If the glass suffers an impact, it may eventually fracture, but the broken fragments will remain bonded to the interlayers.
Cast resin laminated glass is manufactured by pouring liquid resin into the cavity of two sheets.
Benefits: Laminated glass acts as a deterrent against burglary and vandalism. It also acts as an acoustic insulation and protects against firearms and explosions.

Toughened glass: or tempered glass is four to five times stronger than ordinary float glass. If its broken relatively harmless fragments, know as "dice". Toughened glass meets with the highest British standard.
Toughened glass is made by heating prepared and processed glass sheets to a temperature of 700 degrees C. The sheets are rapidly cooled by blasts of cold air to both surfaces, resulting in the outer surface contracting and solidifying before the interior of the glass. The process increases the tensile strength of the glass and gives it safe breakage characteristics.

Laminated & toughened glass together: can be combined with other glass such as decorative, easy clean, thermal insulation and solar protected glass within the same double glazed unit.

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