Unsurpassed Safety Performance

Designing for Safety
While ordinary glass windows can result in serious injuries when broken, laminated glass is versatile in both preventing injuries from broken glass and protecting the building envelope. Glazing made with Saflex® interlayer, used in a properly designed system, reduces the risk of injury from broken glass because the glass clings to the interlayer upon impact. By holding the glass in place, the interlayer provides protection from dangerous flying or falling glass fragments.

Vertical Safety Glazing Applications
The Consumer Product Safety Commission (CPSC) under the Code of Federal Regulations (CFR) 16CFR12.01, and the glass and glazing chapter of the model building codes (International Building Code, International Residential Code, and Building Construction Safety Code) all set uniform requirements for the performance of glass and glazing materials used in applications which present a potential hazard to the public. These applications include entrance doors, storm doors, patio-type sliding doors, shower and bath enclosures, sidelights and fixed glazed panels. Performance requirements are determined by the application and the size of the glazing area. Laminated glass with Saflex interlayer can be designed to meet all of these safety glazing requirements as established in the building codes.

Sloped and Overhead Glazing Applications
Use of glass in sloped and overhead glazing often presents a design and safety challenge. If the glass should break, the glazing system needs to be able to provide protection from glass fallout to those below. Retaining glass fragments to the Saflex interlayer and the system's ability to remain integral if broken, allows laminated glass with Saflex interlayer to meet the performance requirements for sloped and overhead glazing as stated in the model building codes for Europe and the United States.

Engineering for Earthquakes
When designing in geographical areas that require added structural performance for seismic conditions – the following issues are of primary importance:

  • Reducing hazards to people from falling glass injuries and deaths at street level from fractured storefront and elevated windows
  • Reducing the costs to repair earthquake-damaged glazing systems—even when glass is not broken or visibly cracked.

Systems that normally do not receive scrutinized seismic engineering, or that incorporate annealed monolithic glass in applications, do not perform well under severe racking conditions. The glass from these systems tends to fall out of the opening and onto the street or sidewalk once the first cracks occur. If broken, Saflex® interlayer tends to adhere the glass to the laminate keeping the fragments together and allowing the system to remain integral once broken.

For more information on Saflex or Vanceva interlayer, contact us.

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