Process information
| Key Data Set Information | |||
| Location | EU-27 | ||
| Reference year | 2021 | ||
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| Use advice for data set | Scope: This document refers to 1 linear metre (lm) grids as a group average with a declared weight of 0.266 kg/lm produced by Knauf Ceiling Solutions. The grids are manufactured at the organisation’s production sites in: - Dreux (France) - Valenciennes (France) - Grafenau (Germany) The product spectrum offers a high variety and flexibility including various heights, widths and module lengths. The declared unit was calculated based on the average weight of the products of each analysed site and weighted according to the production quantity of each site. The conversion of the average product to other specifications than the declared reference is proportional to the product’s weight. System boundary: The life cycle assessment of average grid suspension systems and accessories includes a cradle-to-gate analysis of the products’ potential environmental impacts with modules C1–C4 and module D (A1–A3, + C + D). Subsequent life cycle phases are part of the analysis: Module A1–A3 | Production stage The production stage includes the upstream burdens of raw material supply, their transports and the processing at the manufacturing plants located in Dreux (France), Valenciennes (France) and Grafenau (Germany). In addition, the slitting of the coils takes place in Antwerp (Belgium). Grids and perimeters are produced via roll forming and bending of slitted steel coils. Main raw material inputs therefore represent hot-dip galvanized steel coils. The production sites are supplied with electricity from the national power grids. In addition, the French sites use thermal energy from natural gas. Module C1 | deconstruction and demolition Disassembly of the product is done either manually or using smaller tools. Referring energy demand is considered to be negligible. Module C2 | transport to disposal The transport to the disposal of the material is estimated declaring a 50 km radius to the disposal. In reality, this scenario may vary depending on the actual location of deconstruction and referring waste treatment. Module C3 | waste processing Product flows that reach Module D for recycling reach the end-of-waste state in C3 and thus leave the product system. Environmental impacts resulting from the grinding and sorting of steel scrap are not included, as referring energy demand is considered to be negligible. Module C4 | disposal Module C4 refers to the emissions from the disposal of the losses from waste processing. The chosen scenario, therefore, includes the environmental burdens of landfilling of 5 % of the material. Module D | benefits and loads beyond the system boundary Module D declares the recycling of the recovered steel (95 % of the product). It includes the potential for substituting primary steel. | ||
| Technical purpose of product or process | Grids and Perimeters are typically used as substructure of suspended ceilings. Their primary function is to hold the ceiling tiles under normal conditions of use and also for special requirements e.g. fire resistance. A suspended ceiling system usually consists of main runners, long and short cross tees and perimeters. | ||
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| General comment on data set | Industrially manufactured metal ceiling systems acc. to EN13964 made of edged or rolled metal sheets as comprehensive construction kits or individual components. A suspended ceiling system usually consists of main runners, long and short cross tees, perimeters and other accessories. This EPD applies to the following products: DONN DX24, DONN DX3- 24, DONN DX15, DONN DX24 KB, DONN DX35, DONN Espace, DONN DP Bandraster, DONN Perimeters. Prelude 24, Prelude 24 Sixty², Prelude 15, Prelude 35, Prelude 24 CR, System Z, Prelude 24 NT+, Prelude 24 System S+, Javelin 24, Q-line T24, Prelude Bandraster, Prelude Perimeters. VENTATEC Performance T24, VENTATEC Performance T24 HIGH, VENTATEC Performance T15 HIGH, VENTATEC Perimeters. Meridian, Rapid’Fix, VIC, Concealed grid, Accessories. | ||
| Copyright | Yes | ||
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| Data set valid until | 2026 | ||
| Technological representativeness | |||
| Technology description including background system | The T- grids and perimeters are produced using roll forming machines. In the roll forming process, a flat sheet metal profile is transformed into a special profile with a complex geometry by incrementally bending the flat profile through a series of contoured and profiled rolls. The sheet metal is usually coil-fed, but can also be from a blank. Coil-fed roll forming equipment produces complex profiles whose cross-sections can be consistently produced, allowing very tight tolerances, high quality finishes and parts with very long lengths. Technical data: Suspension Systems are regulated by EN 13964 and have corresponding labelling and declaration of performance. The following data provide an overview of results: Declared unit: This EPD refers to a declared unit of 1 linear metre (lm) grids with an average weight of 0.266 kg/lm produced by Knauf Ceiling Solutions. The grids consist of bent steel and two clips per grid (1.6 g per clip). | ||
Modelling and validation
| Subtype | average dataset | ||||
| LCA methodology report | |||||
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| Documentation of data quality management | |||||
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Nomenclature compliance
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Quality compliance
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| Compliance |
Compliance system name
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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
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| Time stamp (last saved) | 2021-11-05T12:00:33.107 |
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| Publication and ownership | |
| UUID | be0774be-a2d1-446c-9b35-e84aaa262d94 |
| Data set version | 00.04.000 |
| Registration authority | |
| Registration number | EPD-KNA-20210253-IBD1-EN |
| Owner of data set | |
| Copyright | Yes |
| License type | Free of charge for all users and uses |
| Access and use restrictions | None |
Environmental indicators
Indicators of life cycle