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SAINT-GOBAIN GLASS – FACADE / 5 / SAINT-GOBAIN GLASS – FACADE 4 OUR COATED GLASS FOR FACADES KEY PERFORMANCE FACTORS IN INSULATING GLAZING UNIT Light transmission (LT): Percentage of visible light directly transmitted through the glass. Reflection outside (LRe): Percentage of visible light directly reflected from the exterior glass surface. Reflection inside (LRi): Percentage of visible light directly reflected from the interior glass surface. Ug-value: Measure of the heat loss through the glass due to the difference of temperature between inside and outside. The lower the Ug- value is, the better the insulating properties are. Expressed in W/m 2 K. Shading Coefficient (SC): Ratio of the solar factor of a glazing unit to the solar factor of a clear float glass of nominal thickness of 3 mm (0.87). The lower the shading coefficient number, the less heat gain and thus more shading is provided. Selectivity (LSG): Ratio between the glass’ light transmission and solar factor. When the selectivity of the glass is higher than 2, it gives you twice as much visible light versus heat. Carbon footprint (GWP): The Global Warming Potential corresponds to the whole amount of greenhouse gases (GHG) emitted directly and indirectly and is usually measured in equivalent kilograms of CO 2 per m 2 of glass. Sound reduction (Rw): The weighted sound reduction index (Rw) is a rating to measure and indicate how effective a soundproofing material or system is. This rating is expressed in decibels. OUTDOOR INDOOR Visible light External Light Reflectance (LRe) % of visible light reflected outside the glazing Visible Light transmission (LT) % of visible light passing through the glazing Infrared / Heat Absorbed and re-emitted energy Solar factor (g-value) total energy gain indoors #1 #2 #3 #4 } COOL-LITE® SOLAR CONTROL COATED GLASS ON FACE #2 Online glazing configurator - CALUMEN® All-in-One glazing configurator designed for all building professionals, to determine performances of glazing and find the suitable glazing for projects. Aesthetic rendering - GLASSPRO Accurate predictive glass façade physico-realistic rendering to choose and compare two types of glazing or to appreciate the look of Saint-Gobain Glass products on your own building. DIGITAL TOOLS Page 28 Bird protection - 4BIRD® Solutions to combine COOL-LITE ® solar control glass and visible pattern by birds to help protecting wildlife. SUSTAINABLE INNOVATIONS Solutions for energy generation - Building Integrated Photovoltaics (BIPV) Building Integrated Photovoltaics (BIPV) solutions, turning the façade to a source of energy and help our customers to decarbonize their activities. Page 25 Page 26 Low embodied carbon glass - ORAÉ® First low-carbon glass on the market with exceptionally low carbon footprint, produced by combining high recycled glass content and renewable energy. Page 24 Circular economy - RECYCLING Support for recycling of old façade and on-site collection of end-of-life glass, treatment and recycling as external cullet in our furnace. Page 27 Saint-Gobain Glass offers a complete range of energy efficient coated glass. With solar control, low emissivity, low maintenance and transparency, our glass meets the requirements of low energy consumption buildings. COOL-LITE ® are Saint-Gobain Glass Solar control glass; Assembled in insulating glazing units (IGU), they help reducing overheating within buildings while letting the daylight in. Offering homogeneous aesthetic for large facade, they help to reduce energy needs, hence operational carbon emissions. The technology behind solar control and low emissivity is a thin transparent coating of metallic oxides, deposited on one or two glass panes of a double or triple glazing unit. Invisible thermal shield, this coating retains the heat inside the building and captures the sun heat to keep it outside. Safety glass solutions - VETROTECH Glazed solutions for the safety of people and property: fire protection, attack, bullet and blast resistance. Smart tintable glazing - SAGE GLASS Electronically tintable glazing system to optimize daylight levels while preventing heat and glare without the need for blinds or shades. SPECIALTIES Page 30 Page 31 LOW CARBON MANUFACTURING OF FLAT GLASS AT SAINT-GOBAIN GLASS 1 Glazing recovery Recycling glazing at the end of its life has two major advantages: reducing the carbon footprint of glass and preserving exhaustible resources such as sand. Today, one of the challenges is to structure glazing recovery channels to recycle flat glass in a closed loop. During renovation or deconstruction projects, the glazing must be removed intact to ensure the quality of the material recovered. 2 Cullet production Once the glazing has been removed, it is transported to a dismantling site. The different parts of the windows are separated and the glass is dismantled. The recovered glass is crushed and then sorted and inspected using digital tools to verify its quality. The secondary raw material resulting from this recycling process is called cullet. 3 Flat glass manufacturing The cullet used to manufacture glass does not emit CO 2 during its melting, which also requires less energy than for virgin raw materials. The use of low-carbon energy sources, such as biogas and green electricity, further reduces emissions from glass production. Other industrial innovations also improve energy consumption in the plant. For example, the heat generated by the furnace can be used as energy in other parts of the production line. Page 28 4 Transformation of glass into glazing Once the flat glass is manufactured, it is transported in an inloader truck to the processing site, where it becomes a glazing unit ready for installation. Digital tools optimize the flow between sites, reducing transport-related emissions. On the way back to the plant, the truck can be loaded with cullet from the processing scrap. To reduce road traffic between manufacturing sites, the use of multimodal transport (train and road) is growing rapidly. Solar Factor (g-value): Percentage of solar energy transmitted through the glass. It measures the ability of a glazing to reduce the heating of the room. The lower the solar factor is, the better it helps to improve the comfort inside of the building.