Process information
| Key Data Set Information | |||
| Location | GLO | ||
| Reference year | 2025 | ||
| Name |
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| Use advice for data set | Cradle to grave with Module D (A+B+C+D) | ||
| Technical purpose of product or process | IGUs are designed to reduce heat loss and gain from solar radiation and thermal conduction while optimizing visible light transmission, thereby enhancing thermal performance and lowering energy costs. | ||
| Classification |
Class name
:
Hierarchy level
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| Copyright | Yes | ||
| Owner of data set | |||
| Quantitative reference | |||
| Reference flow(s) |
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| Time representativeness | |||
| Data set valid until | 2030 | ||
| Technological representativeness | |||
| Technology description including background system | 1 Batch Mixer Mix of raw materials (silica, soda ash, lime, feldspar and dolomite) to which is added recycled glass (cullet) and other compounds. 2 Float Glass Production Raw materials are melted at 1550 ℃ in a furnace by fuel oil. Bubbles inside the glass are removed and the temperature is lowered to a level suitable for forming (1100 to 1300 ℃). The molten glass is fed into a bath of molten tin. The glass floats on this flat surface and is drawn off in a ribbon. Serrated wheels, or top rolls, pull and push the glass sideways depending on the desired thickness (from 3 to 12 millimeters). 3 Annealing Since the sharp temperature change causes distortion to appear in formed glass, temperature control is carried out to cool glass slowly. The glass is lifted onto conveyor rollers and passes through a controlled cooling tunnel measuring more than 150 meters in length. 4 Processing The process of making an Insulating Glass Unit (IGU) begins with selecting and cutting glass panes to the required size, followed by thorough cleaning to remove contaminants. Spacers filled with desiccant are placed between the panes to maintain a dry internal environment. The panes are then assembled with precise alignment, and a primary seal (usually butyl) is applied to prevent gas leakage, followed by a secondary seal (such as silicone or polysulfide) for structural strength and moisture protection. If required, inert gases like argon or krypton are filled between the panes to improve thermal insulation. 5 Cutting and Packing The glass is cut into different sies and hares as per requirements. The sheets of glass are raised by vacuum cups that then place them for packing. 6 Storage and Dispatch The glass is then stored in warehouses, and which are then dispatched to the corresponding locations. | ||
| Pictogram of technology | |||
Modelling and validation
| Subtype | specific dataset | ||||
| LCA methodology report | |||||
| Data sources, treatment and representativeness | |||||
| Documentation of data quality management | |||||
| Data source(s) used for this data set | |||||
| Completeness | |||||
| Validation | |||||
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| Compliance Declarations | |||||
| Compliance |
Compliance system name
EN 15804+A2 (EF 3.1)
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Approval of overall compliance
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Nomenclature compliance
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Methodological compliance
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Review compliance
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Documentation compliance
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Quality compliance
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| Compliance |
Compliance system name
ISO 14025
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Approval of overall compliance
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Nomenclature compliance
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Methodological compliance
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Review compliance
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Documentation compliance
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Quality compliance
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Administrative information
| Data generator | |
| Data set generator / modeller | |
| Data entry by | |
| Time stamp (last saved) | 2025-09-05T05:37:27.1721878Z |
| Data set format(s) | |
| Publication and ownership | |
| UUID | bddf45ec-69d3-4d27-ce71-08ddae51845d |
| Date of last revision | 2025-09-02T17:00:15.150+05:30 |
| Data set version | 09.01.002 |
| Preceding Data set version | |
| Registration authority | |
| Registration number | EPD-IES-0024586:003 |
| Owner of data set | |
| Copyright | Yes |
| License type | Free of charge for all users and uses |
| Access and use restrictions | Your use of this material is subject to the General Terms of Use published on by EPD International AB:s homepage at https://www.environdec.com/contact/General-terms-of-use/. If you have not accepted EPD International AB:s the General Terms of Use, you are not authorized to exploit this work in any manner. |
Environmental indicators
Indicators of life cycle