Safety glass panel COOL-LITE® XTREME 61/29

solar controlinsulatingacoustic

Presentation
High-performance solar control glass that preserves natural daylight. COOL-LITE® XTREME 61/29 and 61/29 II (temperable version) are very high-performance solar control glazings offering exceptional selectivity and aesthetic neutrality. They provide a very neutral colour appearance regardless of viewing angle, low light reflection and high performance.

Selected for

• Energy savings: reduces lighting and cooling consumption (selectivity > 2).
• Reduced heating losses (Ug = 1.0 W/m².K).
• Thermal comfort: limits the risk of overheating in summer and avoids cold-surface sensation in winter (suitable for conservatory roofs).
• Visual comfort: maximises natural daylight for a given solar protection level, with optimal external views.

Applications

• Glazed façades to maximise natural light while ensuring occupant comfort and well‑being.
• Atriums for natural illumination with controlled overheating.
• Conservatories and rooflights for year‑round thermal comfort.

Advantages
AESTHETICS: very neutral appearance and low reflection, meeting the trend for highly transparent façades.
ENERGY EFFICIENCY: reduces energy use through high daylight transmission, strong solar protection and good thermal insulation.
OCCUPANT COMFORT: combines brightness, thermal insulation and solar protection. Improved visual comfort during daytime (high natural light) and evening (low, neutral internal reflection).

Performances
The coatings are combined with ORAÉ® (low carbon glass), PLANICLEAR® (clear glass) or DIAMANT® (extra-clear glass) substrates.

Synthetic table (values according to EN 673 and EN 410, calculated with 90% Argon fill for double glazing and 85% for triple glazing):
COOL-LITE® XTREME 61/29 — Double glazing 6*(16)4 with coating on face 2 (ORAÉ® substrate) — Visible light transmission (TL): 61% — External light reflection (Rle): 11% — Internal light reflection (RIi): 14% — Solar factor (g): 0.29 — Selectivity (TL/g): 2.10 — Ug (W/m².K): 1.0 — Carbon footprint (Kg CO2 eq./m²): 22.04
Double glazing 6*(16)4 PLANICLEAR® substrate — TL: 61% — Rle: 11% — RIi: 14% — g: 0.29 — Selectivity: 2.10 — Ug: 1.0 — Carbon footprint: 30.34
Double glazing 6*(16)4 DIAMANT® substrate — TL: 62% — Rle: 11% — RIi: 14% — g: 0.29 — Selectivity: 2.14 — Ug: 1.0 — Carbon footprint: 30.90
Triple glazing 6*(16)4(16)*4 with coating on face 2 and ECLAZ® LUMI on face 5 (PLANICLEAR® substrate) — TL: 56% — Rle: 13% — RIi: 16% — g: 0.27 — Selectivity: 2.07 — Ug: 0.5 — Carbon footprint: 44.77

Additional options for enhanced comfort: STADIP® PROTECT (safety), STADIP® SILENCE (acoustic), CLIMAPLUS® SCREEN (integrated blinds).

Usage instructions
COOL-LITE® XTREME 61/29 and 61/29 II must always be assembled in insulating glazing with the coating positioned on face 2. Edge deletion of the coating is mandatory for both products. COOL-LITE® XTREME 61/29 II must always be tempered before assembly into double glazing.

Characteristics / technical specifications

• Trade name: COOL-LITE® XTREME 61/29 (also available in temperable 61/29 II version).
• Brand: Saint-Gobain Glass.
• Function: very neutral solar control glazing.
• Typical visible light transmission (TL) in double glazing: ~61% (varies by substrate).
• Typical solar factor (g): ~0.29 (double glazing).
• Selectivity (TL/g): ≈2.10 (double glazing depending on substrate).
• External / internal light reflection: low (e.g. Rle ≈11%, RIi ≈14% depending on configuration).
• Thermal transmittance Ug: 1.0 W/m².K (typical double glazing); 0.5 W/m².K (triple glazing with ECLAZ® LUMI).
• Carbon footprint (examples): 22.04 to 44.77 Kg CO2 eq./m² depending on configuration.
• Substrate compatibility: ORAÉ®, PLANICLEAR®, DIAMANT®.
• Assembly: coating on face 2 mandatory; version II = tempering mandatory before assembly.