Process information
| Key Data Set Information | |
| Location | FR |
| Reference year | 2016 |
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| Use advice for data set | Scope: This Life Cycle Assessment study is relevant for corrugated bitumen sheets and tiles produced in the manufacturing plants of Onduline-SA located in Brazil, France, Malaysia, Poland, Russia, Spain, Turkey and United States. This EPD is prepared as a weighted average product as calculated from overall production in these plants. In this study, the data collected refers to the year 2014. The LCA results are reported as 1m2 corrugated bitumen sheet and tile average product. System boundary: Type of the EPD: cradle-to-gate The system boundary contains A1 (extraction, processing, production of raw materials), A2 (Transport to the manufacturer and internal transport) and A3 (Manufacturing operations) modules. These are declared separately. Manufacturing Manufacturing steps of corrugated bitumen sheets and tiles are defined in detail as following. For both, the manufacturing process is composed of two main sections: Cardboard production section: The incoming waste paper is turned into pulp by means of a pulper. This pulp is stocked in the homogenizing stock chests where the consistency is adjusted. During the transfers between the chests, cleaning, sorting, degassing and impurity separation processes are realized. The pulp (web) passes than onto a Fourdrinier (web forming machine) machine where the fibers of cellulose and fillers are distributed evenly at a flat forming table getting the shape of a cardboard with the required thickness and dimensions. Afterwards, it undergoes primary coating and corrugation processes. Coating is the generic name for application of color (resin and pigment base). Drying is realized in a drying tunnel heated by natural gas to obtain a complete dryness in the final state. The cardboards are cut into required dimensions and become sheets before proceeding to the next stage. Impregnation Section: In this section, cardboard gains its waterproofing property. It is completely saturated with bitumen at high temperatures. After impregnation, the sheets undergo curing and cooling operations –corrugated bitumen tiles are cut to dimensions. The manufacturing process is shown in below: |
| Technical purpose of product or process | Onduline Corrugated Bitumen Sheets and Onduvilla Corrugated Bitumen Tiles are intended for use as discontinuously laid roof coverings and external wall finishes and their main function is to get watertightness on pitched roofs and walls. It can be fixed on wooden or metallic battens and purlins but also on full decks. The type of the substructure has to be chosen according to the shape of the roof. It should be laid onto substructure staggered and overlapped. It is intended to be used for protection from weathering elements such as rain water, snow, UV radiation and alike. The watertightness is ensured by the overlapping of the tiles. The corrugated Bitumen Sheets and Tiles can be combined with several insulation systems. |
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| General comment on data set | Onduline Corrugated Bitumen Sheets are for pitched roofs and external walls, consisting of a ho-mogenous base sheet composed of cellulose fiber that is recycled from all sources of waste paper and cardboard. The sheets are pre-pigmented with resin and coloring and impregnated with bitumen, a residue of petroleum refineries, under pressure and heat. This surplus material is used to give the sheet its characteristics of waterproofness. It is produced in a variety of colors. It has large dimensions, lightweight and is easy to install. Onduvilla Corrugated Bitumen Tiles are small elements composed of a bitumen saturated reinforcement made of cellulose and mineral fillers, colored on the external size by a coating or a paint system with or without granules or fine flakes. These products have an overall rectangular shape and at least three corrugations. To be named as a corrugated bitumen sheet according to /EN 534:2006+A1:2010 Corrugated bitumen sheets — Product specification and test methods/, a product has to have an overall rectangular shape and at least 3 corrugations. |
| Copyright | Yes |
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| Quantitative reference | |
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| Time representativeness | |
| Data set valid until | 2021 |
| Technological representativeness | |
| Technology description including background system | Technical data: Onduline Corrugated Bitumen Sheets are produced and delivered according to the requirements of the standard /EN 534/. The main specifications and the test methods are listed below: Onduvilla Corrugated Bitumen Tiles are produced and delivered according to the requirements of the European Technical Approval /ETA-10/0018/. The main specifications and the test methods are listed below: Declared unit: The functional unit (FU) is the production of 1 m2 corrugated bitumen sheet and tile products in line with PCR Part B document for corrugated bitumen materials for roofing and external wall cladding. |
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Modelling and validation
Administrative information
Environmental indicators