Spectrum Industries

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Laminated glass

Glass was normally used to allow natural light to enter an area, or for purely decorative purposes but always considered to be too delicate to face the broader issues of safety and structural integrity. New technologies in glass production and processing enable glass to contradict this prejudice, allowing both practical and inspired solutions for building design. Today’s laminated safety glass was born from research conducted to find a material that could be manufactured efficiently into automobile windshields.The use of laminated glass quickly spread to architecture, helping safely fulfill the most audacious ideas in designing glass buildings.

Laminated glass, a high performance glazing material, is the only glass to provide durability, functional benefits as energy and sound control, while at the same time preserving the aesthetic appearance demanded by modern architecture. Laminated glass is specially designed to remain integral in the opening should glass damage occur.

SPECTRUM LAMI – is made of two or more sheets of glass which are bonded together under heat and pressure to form a single piece with one or more layers (clear, patterned and pigmented, sound-proof and UV-proof treated).We are able to supply laminated glass using standard thickness interlayer of 0,38 / 0,76/ 1,5 mm or customized upon request ; bending strength over 20N/smm and high elasticity up to 250%. Once sealed together, the glass “sandwich” behaves as a single unit that may crack upon impact, but the glass fragments tend to adhere to the protective interlayer reducing the risk of personal injury by keeping the glass intact within the frame until replacement works.

In high risk areas we recommend the use of laminated in multi-ply configuration – tempered or heat strengthened glass and annealed float glass. Laminated made of heat strengthened glass is the necessary product for overhead and traffic area glazing, because the glass is retained in the opening, even when broken, reducing the possibility of injury from falling glass.

For insulating glass units, it is recommended to heat strengthen the outboard glass ply

We can produce laminated glass from:
– annealed float glass
– fully tempered / heat strengthened glass
– patterned glass
– body tinted glass
– coated glass
– screen printed / enameled glass
– bended glass

Benefits of laminated glass: increases bending strength, provides resistance to penetration when subjected to attempted force entry and high level of safety.

Security: laminated glass offers greater protection for people, the interlayer keeps the two pieces of glass bonded even when broken, and its high strength prevents the glass from spreading. The window continues to be functional up to repair work.

Resistance to penetration: laminated glass can be manufactured with a multitude of functional glass panes and interlayer, meeting various performance levels of safety and security. Multiple laminates and thicker glass increases the strength, improving the capacity of resulting structure to resist to mechanical stress, while maintaining the light transmission level (in case of greater clear glass structures the final shade will turn to green).

Bullet proof glazing: it is a fact of everyday life that, confronted to high criminality, violence, terror threats, the need for new glazing solutions insuring personal security is increasing. In multi-ply configurations, laminated glass can even resist bullets, explosions etc. Our company offers a full range of firearm-resistant glazing (glass structure type “panzer” made up of thick glass and several strong interlayer) that can be used in high risk areas: banks, post-offices, embassies, military head-quarters.

European standards:
EN 356: impact resistance
EN 358: penetration resistance
DIN EN 1063: bullet resistance 

Natural disasters: laminated glazing can help provide higher protection in case of earthquake, hurricane, storm, compared to any traditional glazing system, avoiding personal injury and property damage from flying glass.

Solar Control: laminated architectural glazing made of reflective or LowE coated glass may be designed to reduce solar energy transmittance, control glare and screen out ultraviolet (UV) radiation. In laminated structure the metal layers are better protected.

Sound Control: the shear damping performance of the interlayer ( standard or sound proof film) makes laminated glass an effective sound control product.

Designer laminate: the laminating technology allows the extensive combination of glass and interlayer (PET) that can effectively reduce solar heat gain, photographic imprints, metal shields, other materials.

 

Commercial applications: parapet walls, curtain walling, skylight, doors and sloped overheads, interior partitions, balustrades, walk-on glass for floors and stairs, safety glazing applications (schools, hospitals, hotels), sound control glazing, airports, rail-stations.