Process information
| Key Data Set Information | |||
| Location | RER | ||
| Reference year | 2025 | ||
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| Use advice for data set | Scope: This verified EPD entitles the holder to bear the symbol of the Institut Bauen und Umwelt e.V. It exclusively applies for products produced in Europe and for a period of five years from the date of issue. This EPD is a Model EPD where the product displaying the highest environmental impact in a group was selected for calculating the EPD results. This EPD may be used by members of DBC, FEICA and IVK and their members provided it has been proven that the respective product can be represented by this EPD. For this purpose, a guideline is available at the secretariats of the three associations. The members of the associations are listed on their respective websites. System boundary: Modules A1, A2 and A3 are taken into consideration in the LCA: A1 Production of preliminary products A2 Transport to the plant A3 Production incl. provision of energy, production of packaging as well as auxiliaries, waste treatment and emissions to air A4 Transport to site A5 Installation, product applied into the building during A5 phase operations and packaging disposal. The emissions of VOC (Volatile Organic Compounds) is also considered in this module. The end of life for the packaging material considered is described below: - incineration, for materials like plastic, cardboard and wood. - landfill, for inert materials like metals In this form is also considered the incineration of product residue (1%) and the extra production of this amount. C1-C2-C3-C4-D: the building deconstruction (demolition process) takes place in the C1 module which considers energy production and consumption in terms of diesel and all the emissions connected with the fuel-burning process to run the machines. After the demolition, the product is transported to the end-of-life processing (C2 module) where all the impacts related to the transport processes are considered. For the precautionary principle and as a worst-case scenario, thermal treatment is the only end-of-life scenario considered. This is modelled by the incineration process (module C3) where the product ends its life cycle. Module C4 is not relevant for the EoL of this product. Module D accounts for potential benefits that are beyond the defined system boundaries. Credits are generated during the incineration of wastes and related energy produced that are occurring in the A5 and C3 modules. | ||
| Technical purpose of product or process | Module 1: Sealants and adhesives for roofing Sealants and adhesives based on butyl chemistry are used (i) to seal joints or to seal and bond roofing membranes. Membrane roofing is part of the roofing system for buildings. It is used to create a watertight covering to protect the interior of a building. Membrane roofs are most commonly made from synthetic rubber or thermoplastic material (ii) for ridge and hip or abutments (for pitched roof, roof-wall connections), sealing of lapped joints and fixation of foils. Module 2: Products for insulating glazing (IGU) They are particularly suitable for applications that require a low-maintenance, long-lasting seal, such as insulating glass for residential windows and doors, or commercial windows and facade elements (bonded glazing). Module 2a: Primary sealants One- component primary sealants are used to maintain a moisture vapour and gas tight seal for long-term insulating glass unit performance. They seal the spacer bar to the glass and prevent moisture from entering the insulating glass unit cavity and keep the gas sealed inside the insulating glass cavity. Module 2b: Secondary sealants Hotmelt sealants (reactive and non-reactive) based on butyl rubber are used as a secondary sealant of the bonded hermetic seal in insulating glass units. They are responsible for maintaining the structural integrity of the unit during expansion and contraction caused by environmental forces such as fluctuations in temperature, barometric pressure and wind speed. Module 2c: Thermoplastic Spacer One-component reactive or non-reactive sealants based on butyl chemistry with integrated desiccant are used as warm edge spacer systems. They completely replace the conventional spacer bar systems with spacer, desiccant and primary sealant, optimally ensuring and combining the functions of all three components. Module 3: Self-adhering butyl rubber Self-adhering butyl rubber products are used, under tiles and dispersion-based membranes, in combination with sealing membranes, to crack bridging and waterproof substrates like concrete, screeds and gypsum boards in wet rooms, for example, bathrooms and shower rooms. Module 4: Sealing tapes for protective sealing tasks of a building Butyl sealant tapes are immediately functional tapes, used for sealing and fixing in the building sectors, such as roofing, facades, civil engineering, concrete construction, window connection, air conditioning, ventilation channels, sanitary, electronics or containers. These tapes are also used for covering joints, lapped joints and protective sealing tasks without the transmission of mechanical forces on connections, joints, seams, wrapping, breakthroughs, nail and screw points and butt joints for indoor and outdoor applications. Butyl sealant tapes can be used as corrosion protection between metal materials or as vibration and noise insulation. Typically fleece- or foil-laminated tapes or double-sided self-adhesive sealing profiles are used. | ||
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| General comment on data set | Products based on the butyl chemistry with a Volatile Organic Compound (VOC) content of ≤1 % (VOC definition according to Decopaint Directive) are one-component, non-crosslinking products manufactured from polyisobutene (PIB), polybutene (PB), butyl rubber (IIR) and other polymers (e.g. Amorphous poly alpha olefin (APAO), Polyolefin (PO), Styrene butadiene rubber (SBR), Styrene isoprene styrene blockcopolymer (SIS), Styrene butadiene styrene blockcopolymer (SBS), Styrene ethylene butadiene styrene blockcopolymer (SEBS), Ethylene vinylacetate polymer (EVA), fillers, resins, plasticisers, colour pigments and other additives. The formulated products are delivered (i) typically packed in cartridges, slugs, siliconised cardboard boxes, metal pails & drums or (ii) supplied in the form of tapes, round profiles, sheets, stampings, sections or plasticine with the preformed materials separated by an appropriate release liner. Products based on butyl chemistry fulfil key functions. Ingress of moisture into the structure via the joints is prevented by the use of products based on butyl as a seal. With the use of products based on butyl, the fitness for use of the building and the service life are decisively extended. The product displaying the highest environmental impacts was used as a representative product for calculating the Life Cycle Assessment results (worst-case approach). | ||
| Copyright | Yes | ||
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| Data set valid until | 2030 | ||
| Technological representativeness | |||
| Technology description including background system | Products based on the butyl chemistry with a Volatile Organic Compound (VOC) content of ≤1 % (VOC definition according to Decopaint Directive) are one-component, non-crosslinking products manufactured from polyisobutene (PIB), polybutene (PB), butyl rubber (IIR) and other polymers (e.g. APAO, PO, SBR, SIS, SBS, SEBS, EVA), fillers, resins, plasticisers, colour pigments and other additives. Technical data: The density of the products is between 1.0 and 2.5 g/cm other relevant technical data can be found in the manufacturers technical documentation. Module 1: Sealants and adhesives for roofing Performance characteristics in accordance with the manufacturers technical documentation/declaration of performance. Module 2: Products for insulation glazing Module 2a: Primary sealants Module 2b: Secondary sealants Module 2c: Thermoplastic spacer All Butyl-based sealants for insulating glass (all modules) must comply with EN 1279-4. Performance characteristics in accordance with the manufacturers technical documentation/declaration of performance. Module 3: Self-adhering butyl rubber Performance data of the product in accordance with the declaration of performance with respect to its essential characteristics according to EAD 03052-00-0503, EAD 030436-00-05035, and EAD 030437-00-0503 as a kit component in combination with a dispersion-based membrane and sealing membrane. Module 4: Sealing tapes for protective sealing tasks of a building Performance data of the product with respect to its characteristics in accordance with the relevant technical provision (no CE-marking). Declared unit: This EPD refers to the declared unit of 1 kg of product based on butyl chemistry applied into the building with a density of 1.0 - 2.5 g/cm in accordance with the IBU PCR part B for building sealants. The results of the Life Cycle Assessment provided in this declaration have been selected from the product with the highest environmental impact (worst-case scenario). Depending on the application, a corresponding conversion factor such as the density to convert volumetric use to mass must be taken into consideration. The Declaration type is according to EN 15804: Cradle to gate with options, modules C1–C4, and module D (A1–A3, C, D) and additional modules (A4-A5). | ||
Modelling and validation
| Subtype | template dataset | ||||
| LCA methodology report | |||||
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| Compliance |
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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
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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) | 2025-06-04T00:00:00 |
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| Publication and ownership | |
| UUID | c6bb40bc-d036-4e97-b46c-ed2770387adf |
| Data set version | 00.01.000 |
| Registration authority | |
| Registration number | EPD-FEI-20250068-IBP1-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