Environmental Product Declaration
FLAT GLASS 12mm
Environmental Product Declaration (EPD) for FLAT GLASS 12mm, manufactured by Saint-Gobain Glass. Declaration SmartEPD-2024-010-0045-01, prepared according to PCR for Flat Glass: UN CPC 3711, valid until January 10, 2029.
- Declared unit
- 1 ton of product
- Valid until
- January 10, 2029
- PCR
- Flat Glass
Declaration details
- Manufacturer
- Saint-Gobain Glass
- Program operator
- Smart EPD
- Declaration number
- SmartEPD-2024-010-0045-01
- Date of issue
- January 10, 2024
- Valid until
- January 10, 2029
- Product category rules (PCR)
- PCR for Flat Glass: UN CPC 3711 (version 2)
- Standard
- ISO 14025:2006 and ISO 21930:2017
- Declared unit
- 1 ton of product
- System boundary
- Cradle to gate (A1 - A3)
- Product specificity
- Product Specific
- Manufacturing specificity
- Manufacturer Average, Facility Specific
- Manufacturing plant
- Saint-Gobain Glass Mexico (Cd Ayala, Morelos, Mexico)
- Product category
- Openings › Glazing › Panes › Flat Glass
- Product service life
- 30 years
- Verifier
- Anna Lasso, Smart EPD
- LCA software
- GaBi 8.0
- Program instructions
- Smart EPD General Program Instructions v.1.0, November 2022
Life cycle assessment results
Results per 1 ton of product.
Environmental Impact Assessment Results
| Indicator | Unit | A1 | A2 | A3 | A1-A3 |
|---|---|---|---|---|---|
| GWP-total [including biogenic carbon] | kg CO2 eq | 3.25e+2 | 1.25e+1 | 9.13e+2 | 1.25e+3 |
| ODP | kg CFC 11 eq | 3.80e-7 | 3.80e-7 | 7.52e-5 | 7.60e-5 |
| AP | kg SO2 eq | 1.71e+0 | 1.42e-1 | 7.62e+0 | 9.47e+0 |
| EP | kg N eq | 4.02e-1 | 3.94e-2 | 4.29e+0 | 4.73e+0 |
| POCP | kg O3 eq | 1.72e+1 | 1.29e+0 | 6.76e+1 | 8.61e+1 |
| ADP-minerals&metals | kg Fe eq | 7.28e-2 | 5.46e-3 | 2.86e-1 | 3.64e-1 |
| ADP-fossil | MJ | 4.89e+2 | 6.99e+1 | 1.77e+3 | 2.33e+3 |
Resource Use Indicators
| Indicator | Unit | A1 | A2 | A3 | A1-A3 |
|---|---|---|---|---|---|
| RPRT | MJ, net calorific value | 2.16e+2 | 5.20e+0 | 2.99e+2 | 5.20e+2 |
| RPRM | MJ, net calorific value | 0 | 0 | 0 | 0 |
| RPRT | MJ, net calorific value | 2.16e+2 | 5.20e+0 | 2.99e+2 | 5.20e+2 |
| NRPRE | MJ, net calorific value | 3.87e+3 | 1.89e+2 | 1.48e+4 | 1.89e+4 |
| NRPRM | MJ, net calorific value | 0 | 0 | 0 | 0 |
| NRPRT | MJ, net calorific value | 3.87e+3 | 1.89e+2 | 1.48e+4 | 1.89e+4 |
| SM | kg | 1.10e+2 | 0 | 0 | 1.10e+2 |
| RSF | MJ, net calorific value | 0 | 0 | 0 | 0 |
| NRSF | MJ, net calorific value | 0 | 0 | 0 | 0 |
| RE | MJ | 0 | 0 | 0 | 0 |
| FW | m3 | 1.26e+0 | 2.79e-2 | 1.50e+0 | 2.79e+0 |
| SOx | kg | 0 | 0 | 1.77e-3 | 1.77e-3 |
| NOx | kg | 0 | 0 | 6.24e-3 | 6.24e-3 |
| CO2e | kg | 0 | 0 | 6.11e-1 | 6.11e-1 |
| CO | kg | 0 | 0 | 7.88e-6 | 7.88e-6 |
| VOCs | kg | 0 | 0 | 0 | 0 |
| Fe | kg | 0 | 0 | 1.29e-7 | 1.29e-7 |
| PM total | kg | 0 | 0 | 3.24e-4 | 3.24e-4 |
| Phosphates | kg | 0 | 0 | 1.34e-7 | 1.34e-7 |
| Nitrates | 0 | 0 | 3.69e-6 | 3.69e-6 | |
| Heavy metals | 0 | 0 | 1.39e-4 | 1.39e-4 |
Waste and Output Flow Indicators
| Indicator | Unit | A1 | A2 | A3 | A1-A3 |
|---|---|---|---|---|---|
| HWD | kg | 5.12e-5 | 3.36e-6 | 1.40e-6 | 5.60e-5 |
| NHWD | kg | 2.77e+1 | 2.80e-1 | 0 | 2.80e+1 |
| MFR | kg | 2.86e+1 | 0 | 0 | 2.86e+1 |
| MER | kg | 0 | 0 | 0 | 0 |
| MNER | kg | 0 | 0 | 0 | 0 |
ND = not declared. Life cycle modules: A1-A3 product stage, A4-A5 construction process, B use stage, C end of life, D benefits and loads beyond the system boundary.
Material composition
| Material/Component Category | Origin | % Mass |
|---|---|---|
| Sand | Unknown | 55-60 |
| Sodium carbonate | Unknown | 15-20 |
| Dolomite | Unknown | 10-12 |
| Limestone | Unknown | 7-10 |
| Glass cullet | Unknown | 10-12 |
| Feldspar | Unknown | 0.25-1.0 |
| Packaging material | Origin | Mass (kg) |
|---|---|---|
| Cardboard | Unknown | 6.00E-01 |
| Wood | Unknown | 2.50E-01 |
| Plastics | Unknown | 2.00E-02 |
| Biogenic carbon content | kg C per ton |
|---|---|
| Biogenic carbon content in product | 0 |
| Biogenic carbon content in accompanying packaging | 0 |
Hazardous substances
No regulated hazardous or dangerous substances are included in this product.
Product description
FLAT GLASS is a soda-lime silicate glass produced using the float process to be used in building applications.
The declared unit is 1 metric tonne (1000 kg) of flat glass to be incorporated into a building. One declared unit is required for the 30 year service life. This EPD covers an average of several products from two manufacturing facilities in Cuautla, Mexico. The products include PLANILUX® (clear glass), PARSOL® GREY (colored glass.) and PARSOL® GREEN (colored glass). 55% of the production was clear glass and 45% was colored glass.
The reference flow is 1 kg with the density of the product being 2,500 kg/m³ with different thicknesses available including 3mm, 4mm, 5mm, 6mm, 8 mm, 10 mm, and 12 mm thicknesses. Material composition does not alter based on thickness. This EPD represents the 12mm Flat Glass.
Interpretation
In the production of FLAT GLASS two main sources of impacts can be identified.
One is the energy consumed in the furnace and the other one is the impacts generated in the production of one of the main raw materials, the soda ash.
Soda ash is in the origin of 21% of the GWP, 60% of the abiotic depletion for non-fossil fuels (ADP elements) and more than 20% of the energy consumption.
Planiclear and Parsol glass have the same process and a similar recipe, except for metallic oxides which give the coloration to the glass.
With the very low variations linked to this component, results are seen as representative for both products.
Dioxin results were not completed for this assessment.
LCIA results are relative expressions and do not predict impacts on category endpoints, the exceeding of thresholds, safety margins or risks. EPDs are comparable only when they follow the same PCR, functional unit and system boundary. The full EPD (PDF) contains the methodology, scenario assumptions and verification statement.