6 LETTER TO SHAREHOLDER No 103 H1 2026 RESULTS 1. To learn more: www.isover.co.uk, www.british-gypsum.com, www.fr.weber/en 2. Article in French: www.batiweb.com/actualites/isolation/confort-ete-climatisation-dernier-recours-saint-gobain-49024 3. Solar control glass, www.saint-gobain-glass.co.uk/our-glassolutions-product-range: COOL-LITE® range, ECLAZ® ZEN and ECLAZ® SUN glazing solutions 4. Up to 70% reduction in energy bills with a rapid return on investment SAINT-GOBAIN NEWS To tackle poorly insulated buildings, reduce energy consumption and preserve occupant comfort both in summer and winter, Saint-Gobain recommends focusing first on insulation1 before resorting to air conditioning. “If we only address the symptom by adding cooling capacity without improving the building envelope, we end up with an over-sized air-conditioning system that operates five times longer than it would in an energy-efficient building, resulting in much higher energy consumption,” explains Olivier Servant, Director of Construction Solutions at SaintGobain France2. The first step is to improve the building envelope. “The purpose of insulation is to limit heat transfer through walls and roofs,” explains Claude Da Silva, Construction Solutions Research & Development Director. High-performance insulation for facades and roofs helps limit overheating and can reduce indoor temperatures by up to 10°C during periods of extreme heat. The second approach is to reduce heat gain through glazed surfaces while preserving natural daylight. One of Saint-Gobain’s flagship solutions is solar control glass3. Thanks to a specific coating applied to the glass, it reflects up to 70% of infrared radiation while still allowing 70% to 75% of natural light to enter. “The magic of solar control glass is providing access to natural light while blocking heat,” summarizes Emmanuel Valentin, International Market Manager Glass Windows. This technology can reduce peak overheating by 3°C to 6°C. Finally, night-time ventilation and light-colored or reflective coatings complement these measures by limiting heat accumulation and storage within buildings. These proven solutions improve comfort, reduce energy bills4, and enhance the longterm value of real estate assets. Challenges SAINT-GOBAIN SOLUTIONS TO COMBAT EXTREME HEAT SOME FLAGSHIP PROJECTS
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