Low-e glass panel ECLAZ® LUMI

insulatingacousticthermal insulating

PRODUCT DESCRIPTION
ECLAZ® LUMI and ECLAZ® LUMI II are low-emissivity glasses designed for high-performance insulating glazing used in architectural façades and windows. Manufactured by an advanced industrial process, they provide thermal insulation in double and triple glazing while maintaining exceptional transparency and a high solar factor that combine daylighting with solar heat gains to support energy performance and occupant comfort.

BENEFITS & APPLICATIONS

• Suitable for double- and triple-glazed windows in cold and temperate climates.
• Approx. 10% relative increase in solar factor (g-value ≈71% in double glazing, ≈60% in triple glazing) versus leading standard double/triple glazing solutions.
• Very high solar gains and luminous transmission (TL ≈83% in double glazing, ≈77% in triple glazing) enabling improved energy efficiency; up to ≈10% heating energy savings versus standard triple/double glazing (Passive House Institute calculation).
• Neutral visual appearance with limited mirror effect, suitable for residential and non-residential façades and windows.

APPEARANCE
ECLAZ® LUMI (II) is among the most transparent low-e glasses available. It offers color-neutral transmission and reflection, preserving the colours of the external view through the glazing.

TECHNICAL INFORMATION
RANGE:
SUBSTRATE: PLANICLEAR® (clear glass); ORAÉ® (low-carbon glass) in some EU countries.
THICKNESS: 3–8 mm (to-be-tempered versions available in 4 mm and 6 mm).
SIZE: Standard jumbo up to 3.21 x 6.00 m; available in standard stock sizes and on demand in bespoke sizes; also available on extra-clear DIAMANT® for production or design optimisation.
PROCESSING: Processable as a standard low-e coating. Available laminated (STADIP® PROTECT for safety, STADIP® SILENCE for acoustic insulation). To-be-tempered versions (suffix II) can be tempered and may be bent depending on process; trials recommended. Annealed and to-be-tempered versions provide similar performance and outdoor reflection compatibility.
INSULATED GLAZING UNIT: Must be assembled into an insulated glazing unit (IGU) with the coating positioned inside the IGU.
LAMINATION: Can be laminated; coating must be located on face 4 (outside of the laminate).
AVAILABILITY: Available in Europe.

PERFORMANCE
Key performance highlights include a high solar factor and high light transmission in double and triple glazing configurations, improving thermal insulation and daylighting while maintaining a neutral aesthetic with low mirror effect.

Certifications
Product covered by a verified Environmental Product Declaration (EPD) and Cradle to Cradle Bronze certification.

Technical specifications

• Substrate: PLANICLEAR® (clear glass); ORAÉ® (low-carbon glass) in some EU countries.
• Thickness: 3–8 mm (to-be-tempered available in 4 mm and 6 mm).
• Standard size: Jumbo 3.21 x 6.00 m; custom sizes and extra-clear DIAMANT® on request.
• Assembly: Must be assembled into an IGU; coating positioned inside the unit.
• Lamination: Possible; coating must be on face 4 (outside the laminate).
• Heat treatment: Annealed and to-be-tempered (suffix II) options; to-be-tempered may be bent (validate by trials).
• Performance indicators: g-value ≈71% (double glazing), ≈60% (triple glazing); TL ≈83% (double), ≈77% (triple). Up to ≈10% heating energy savings vs standard triple/double glazing (Passive House Institute study).
• Applications: Windows (residential & non-residential), façades (mainly in triple-glazed units with coating on face 5; can be combined with COOL-LITE® on face 2).
• Certifications: Verified EPD; Cradle to Cradle Bronze.
• Aesthetics: Neutral appearance, limited mirror effect, very high transparency and colour neutrality.