Burglary resistant windows , doors and facades
Bullet proof windows , doors and facades
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.
Laminated glass is normally used when 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 also blocks 99% of incoming UV radiation.
- Toughened glass: Toughened or tempered glass is a type of safety glass processed by controlled thermal or chemical treatments to increase its strength compared with normal glass. Tempering puts the outer surfaces into compression and the inner surfaces into tension. Such stresses cause the glass, when broken, to crumble into small granular chunks instead of splintering into jagged shards. The granular chunks are less likely to cause injury.
- Sandblasted/frosted glass: Frosted glass is produced by the sandblasting or acid etching of clear sheet glass. It has the effect of rendering the glass translucent by scattering of light during transmission, thus bluring images while still transmitting light.
Fire rated windows, doors and facades
These are products (windows, doors ,glass works etc) that can withstand fire for a certain length of time. They contain specific components that inhibits fire damage on it.
Access control (AC) is the selective restriction of access to a place. This can be achieved by introducing special devices with access permit keys, cards, thumb prints, voice or even eye lens identification.