XTREME 51/23 II Glass is suitable for commercial, institutional, multi-residential and retail.

Suitable for:

• Highly sun exposed façades
• North, east and west facing elevations
• Commercial curtain walls
• Structural glazing systems
• Offices and institutional buildings
• Large windows and glazed walls
• Buildings with high cooling demand
• Selected overhead glazing

• Lower daylight transmission than XTREME 70/33 II and XTREME 61/29 II
• Must be thermally processed before unit manufacture
• Coating must be edge deleted
• Normally positioned on surface two
• Daylight and appearance should be assessed during façade design
• Glass make up must suit the project loads and safety requirements
• Performance depends on the complete unit and framing system
• Must be installed in accordance with Metro requirements and NZS 4223

When correctly specified, manufactured and installed as part of a compliant window or façade system, XTREME 61/29 II can contribute to compliance with:

• B1 Structure
• B2 Durability
• E2 External Moisture
• F2 Hazardous Building Materials
• G7 Natural Light
• H1 Energy Efficiency

Compliance must be assessed for the complete glazing and framing system.

Performance data is based on a nominal 4 14 4 double glazed unit with argon gas and a thermal spacer:

• Ug centre of glass: 1.1
• Visible light transmission: 51%
• External light reflectance: 13%
• Internal light reflectance: 18%
• Solar factor or g value: 23 %
• Fading protection Tdw ISO: 0.39
• Appearance: Neutral

XTREME 51/23 II provides the strongest solar control and highest selectivity of the six products, making it suitable for highly exposed façades where reducing solar heat is a key priority.

Warranty & Maintenance

• Qualifying Metro insulated glass units are covered by the applicable Metro warranty
• Refer to the attached Metro warranty document and registration requirements
• Maintain in accordance with the Metro glass care and maintenance guide
• Maintain framing, seals, drainage paths and building interfaces