Laminated safety glass is made by bonding two or more panes with one or more PVB (polyvinyl butyral) interlayers under heat and pressure. When the glass breaks, the fragments stay stuck to the interlayer instead of scattering, and the opening remains closed for a while. This gives important protection against both accidents and forced entry.
Where Is It Used?
Ground floor windows, shop fronts, glass sections of entrance doors, glass balustrades, roof and overhead glazing, children’s rooms and school buildings are the main applications. It is often chosen for security on ground floor facades facing gardens in villas in Dalyan and for businesses in Ortaca’s market area.
Advantages
- Does not shatter when broken, reducing the risk of injury.
- Resists forced entry; the opening stays closed even if the glass breaks.
- Noticeable sound insulation thanks to the PVB interlayer.
- Filters most UV rays, reducing fading.
- Can be combined with insulation inside a double glazed unit.
Technical Information
The most common laminated build-ups are 3+3 (33.1), 4+4 (44.1) and 5+5 (55.1); the digit after the point shows the number of PVB layers. As the required security level rises, the number of PVB layers and glass thickness increase. Acoustic PVB raises sound insulation further and is recommended for homes near main roads or entertainment venues. Laminated glass can be used as the outer and/or inner pane of a double glazed unit, for example 44.1 + 16 + 4 Low-E.
Sizes and Installation
Laminated glass is heavier than ordinary glass, so sash and hinge capacity is checked during the survey. During installation the glass is carried on setting blocks and fixed with glazing beads. For glass balustrades and overhead glazing, thickness is chosen according to engineering calculations and supporting profiles are selected accordingly.
Maintenance
Laminated glass is cleaned like ordinary glass. Keeping its edges out of prolonged contact with water extends the life of the PVB layer, so correct installation and drainage are important. Broken laminated glass is measured on site and replaced quickly.
Request a free survey and measurement to determine the right laminated build-up for your security and sound insulation needs.
