Guardian Glass has published new Environmental Product Declarations (EPDs) for its portfolio of processed and unprocessed flat glass produced in Thailand. Products covered include its range of float glass (clear and tinted), laminated glass, and wet coated (mirror) glass.
Third party verified by an independent external verifier (UL), the four EPDs cover the following products:
- Guardian™ Clear, Guardian™ Light Green and Guardian™ Solar Management Glass float glass
- Guardian LamiGlass™ laminated glass product range
- Guardian UltraMirror™, Guardian UltraMirror™ Plus and Guardian UltraMirror™ Life mirror glass
- Guardian™ Clear, Guardian™ Light Green and Guardian™ Solar Management Glass for automotive applications, according to the Automotive Product Category Rules (PCRs)
The EPD for float glass used in architectural and interior design applications follows a cradle-to-gate (A1-A3) study, conducted in accordance with ISO 21930 and the North American PCRs. It reports an embodied carbon value of 9.97 kgCO₂e/m² for 4 mm glass.
The EPD for automotive glass follows a cradle-to-gate with Options study (A1-A4, C1-C4), incorporating both transportation from Thailand to Australia and New Zealand (A4) and end-of-life considerations (C1-C4). Developed in accordance with the Automotive & Transport UN PCRs, the total embodied carbon for 4 mm automotive glass is 12.3 kgCO₂e/m². This includes an A1-A3 embodied carbon value of 10.02 kgCO₂e/m² and an A4 transportation impact of 2.16 kgCO₂e/m² for shipments to Australia and New Zealand.
In parallel, Guardian Glass has introduced a new feature to its current Performance Calculator tool, which allows users to calculate the embodied carbon for the glazing configurations they select. This online tool (part of Glass Analytics) enables the modelling of the thermal and optical properties of glass substrates, coatings and interlayers. The new Performance Calculator feature provides an estimate of the embodied carbon equivalent for a wide number of glazing combinations, as it is available for most float glass, sputter-coated glass and laminated glass products produced by Guardian Glass in Asia Pacific, North America, South America, Europe and Africa Middle East & India.