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SunX™ Reflect Low E Double Glazing
Description

SunX™ Reflect combines high solar control and thermal insulation with a reflective silver appearance. It is designed for sun-exposed buildings where overheating, glare and daytime privacy are key considerations.

SunX™ Reflect provides up to 61% better heat retention and reduces solar heat by up to 71% compared with standard double glazing. It replaces Metro’s previous Stopsol Classic product.

Key Features
  • Reflective silver exterior appearance
  • Up to 61% better heat retention than standard double glazing
  • Reduces solar heat by up to 71% compared with standard double glazing
  • Lets in 31% of visible light
  • Helps reduce glare and improve daytime privacy
  • Helps reduce fading of interior furnishings
  • Low E coating, argon gas and thermal spacer
  • Suitable for residential and commercial windows and doors
  • Can be combined with laminated, tinted or obscure glass
  • 1.1 U value complaint with the latest H1 requirements nationwide
  • Locally processed and available nationwide
Scope of Use

Suitable for residential, multi-residential and commercial windows and doors requiring high solar control and a reflective architectural appearance.

SunX™ Reflect is particularly suited to:

  • Projects requiring Metro’s highest level of solar control
  • Buildings in warmer or highly sun exposed locations
  • Large windows and glazed doors
  • North, east and west facing elevations
  • Rooms where overheating or glare may be a risk
  • Projects requiring a reflective architectural appearance
  • Applications where increased daytime privacy is preferred
  • Double glazed window systems designed to meet H1 requirements
  • Buildings within NZS 3604 wind zones up to and including Extra High, subject to appropriate glass and frame selection
Limitations on Use
  • SunX™ Reflect has a distinctive reflective appearance and lower visible light transmission than other Metro Low E options.
  • The glass appearance should be reviewed as part of the complete façade design.
  • The same glass should generally be used across adjacent windows and doors to maintain visual consistency.
  • High solar control may reduce passive solar heating during cooler months.
  • Must be glazed in accordance with Metro Performance Glass glazing instructions and to the current NZ building code.
Statement of Building Code Compliance

When specified as part of an appropriately designed and installed window or door system, SunX™ Reflect Low-E Double Glazing complies with or can contribute to compliance with relevant provisions of the New Zealand Building Code, including:

  • B1 Structure
  • B2 Durability
  • E2 External Moisture, as part of the complete window or door system
  • F2 Hazardous Building Materials
  • F4 Safety from Falling, where specifically designed for this purpose
  • G7 Natural Light
  • H1 Energy Efficiency

SunX™ Reflect is suitable for meeting H1 requirements across all New Zealand climate zones, subject to the selected spacer width, frame and complete window-system performance

Other Performance Attributes

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

  • U-value, Ug centre of glass: 1.1 W/m²K
  • Solar control, solar factor or g-value: 22%
  • Visible light transmission (VLT): 31%
  • Fading protection (Tdw-ISO): 0.27
  • Appearance: Reflective silver
  • Double glazed units are manufactured and tested in accordance with BS EN 1279
  • Safety glass options are manufactured in accordance with AS/NZS 2208
  • Glass selection and installation are undertaken with reference to NZS 4223

Warranty and maintenance

  • 10 year double glazing warranty
  • Refer to the attached Metro Performance Glass warranty document and registration link
  • Maintain in accordance with the attached Metro Performance Glass care and maintenance guide

SunX™ Reflect Low E double glazing - performance data

Make-up mm

Heat Loss

Visibility

Heat Gain

 

Fading

 

Ug

U Value
Insulation value,
lower is better

VLT

Visible Light Transmission
Higher % means
more daylight
transmitted

VLR-E

External Reflectance
Higher % means
more reflection seen

SF

Solar Factor (g)
Lower number
means less solar
heat coming in

LSG

Selectivity
Higher number
means more light and less solar heat

Tdw-ISO

Damaged
Weighted Transmission
Lower value means better
fading
protection

4-8-4

1.7

31%

45%

22%

1.41

0.27

4-10-4

1.4

31%

45%

22%

1.41

0.27

4-12-4

1.3

31%

45%

22%

1.41

0.27

4-14-4

1.1

31%

45%

22%

1.41

0.27

4-16-4

1.1

31%

45%

22%

1.41

0.27

4-18-4

1.1

31%

45%

22%

1.41

0.27

Documents
Double Glazing Technical Brochure

2024

Glass Care & Maintenance
Metro Performance Glass Warranty Information
Warranty
Warranty
Double Glazing Brochure

Metro Performance Glass delivers locally made, high performance glass and glazing solutions, supported by nearly 40 years’ experience and New Zealand’s largest installation capability.

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