SafeLite™ STF SentryGlas® is suitable for residential, commercial and architectural projects requiring structural performance, post-breakage retention or increased resistance to penetration.

Typical applications include:

• Frameless glass balustrades
• Structural glass walls
• Glass fins
• Point fixed glazing
• Glass canopies
• Overhead glazing
• Glass floors and stairs
• Façades and entrance glazing
• Frameless screens
• Selected security glazing
• Structural laminated glass doors
• Applications using bonded or mechanically fixed structural fittings

Each application requires project specific selection of the glass plies, interlayer, panel dimensions, support conditions and fixings.

• SafeLite™ STF is manufactured to project specific requirements and is not a universal structural solution.
• Balustrades, floors, canopies, overhead glazing and point fixed systems may require specific engineering design and producer statement documentation.
• The supporting structure and fixing substrates must accommodate all transferred loads.
• Glass edges and interlayers must be protected from incompatible sealants, chemicals and installation materials.
• Not all fittings are suitable for toughened laminated structural glass.
• Post breakage capacity depends on the glass make up, temperature, load duration, support conditions and extent of breakage.
• The product must be installed in accordance with the approved project documentation, Metro’s instructions and the current New Zealand Building Code.

When specifically designed, manufactured and installed in accordance with the approved project documentation, SafeLite™ STF SentryGlas® can comply with or contribute to compliance with relevant provisions of the New Zealand Building Code, including:

• B1 Structure
• B2 Durability
• E2 External Moisture, as part of a complete external glazing system
• F2 Hazardous Building Materials
• F4 Safety from Falling, where incorporated into a specifically designed and compliant barrier system
• G7 Natural Light

Compliance must be established for the complete system, including the glass, interlayer, hardware, fixings, supporting structure and installation. Project specific engineering and producer statement documentation may be required.

• High stiffness and strength compared with conventional laminated-glass interlayers
• Retains some load bearing capacity after both glass plies fracture
• Greater post breakage retention than monolithic toughened glass
• Increased resistance to penetration compared with annealed PVB laminate
• Improved acoustic performance compared with equivalent monolithic glass
• Reduced susceptibility to moisture-related interlayer clouding and yellowing
• Can be combined with heat-soaked glass where a lower risk of spontaneous toughened glass breakage is required
• Safety glass manufacture is undertaken in accordance with AS/NZS 2208
• Laminated glass processing is undertaken in accordance with AS/NZS 4667
• Final structural performance must be established for the specific glass configuration and installed system

Warranty & Maintenance

• 10 year double glazing warranty
• Warranty coverage is subject to Metro’s applicable structural laminated glass warranty terms.
• Refer to the attached Metro Performance Glass warranty document for coverage, exclusions and claim requirements.
• Maintain in accordance with the attached Metro Performance Glass care and maintenance guide.
• Regularly inspect glass edges, holes, notches, fixings and support hardware.
• Keep glass edges protected from standing water and incompatible sealants or chemicals.
• Do not modify, drill or cut the glass after manufacture.
• Any movement, damage or deterioration in structural fittings should be assessed promptly by a suitably qualified professional.
• Warranty coverage does not replace required inspection and maintenance of the complete structural glazing system.