Sandwich panels (PROMISOL / FRIGOTHERM / ONDATHERM) with PIR core

The data selected for LCA analysis originate from ITB-LCI questionnaires completed by ArcelorMittal Construction Sp. z o.o. using the inventory data, ITB and Ecoinvent database v. 3.9. No specific data collected is older than five years and no generic datasets used are older than ten years. The representativeness, completeness, reliability, and consistency are judged as good. The allocation rules used for this EPD are based on general ITB PCR A. Production of PROMISOL / FRIGOTHERM / ONDATHERM sandwich panels with the rigid foam core is a line process with steel cladding sheets and trays in one factory of ArcelorMittal Construction Sp. z o.o. in Rawa Mazowiecka. Allocation was done on product mass basis. All impacts from raw materials extraction and processing are allocated in A1 module of EPD. Water and energy consumption, associated emissions and generated wastes are allocated to module A3. Energy supply was inventoried for whole production process. Packaging materials were taken into consideration. The life cycle analysis (LCA) of the declared products covers: product stage – modules A1-A3, end of life – modules C1-C4 and benefits and loads beyond the system boundary – module D (cradle-to-gate with options) in accordance with EN 15804+ A2 and ITB PCR A. Energy and water consumption, emissions as well as information on generated wastes were inventoried and were included in the calculations. It can be assumed that the total sum of omitted processes does not exceed 5% of all impact categories. In accordance with EN 15804+ A2, machines and facilities (capital goods) required for the production as well as transportation of employees were not included in LCA.

The system of PROMISOL / FRIGOTHERM / ONDATHERM sandwich panels includes: • PROMISOL 1003B - cladding panels with visible fix (PIR), • PROMISOL 2003BI - cladding panels with secret fix (PIR), • FRIGOTHERM 1003BC - cladding panels with visible fix (PIR) – coldroom version • ONDATHERM 1001TS roofing panels (PIR) Structure All available panel types have the modular width of 1000 mm. The sandwich panels consist of two steel skin sheets and an insulating core. The core is made of PIR type freon-free polyisocyanurate foam with the density of 40 ± 3 kg/m3. The skin sheets serve the purpose of conveying normal stress whereas the core is responsible for conveying tangential stress and keeping a permanent distance between the skin sheets. This structure makes the panel light while retaining its high load capacity and stiffness, which allow increasing the span of supports (purlines, locks). See table 1 for the key range of panels. The panel skin sheets are made of S220GD, S250GD, S280GD, S320GD and S350GD steel sheets. The available skin sheet thickness varies from 0.40 mm to 0.75 mm. In case of wall panels, the standard thickness is 0.50 mm (int. and ext. skin). In case of roof panels, the standard thickness is 0.50 mm for the external skin sheet and 0.40 mm for the internal skin sheet. They are protected with a metallic layer coated with an organic layer. Colours Standard colours of external skins are: RAL 9010, RAL 9002, RAL 9006, RAL 9007, RAL 7035, RAL 1015, RAL 5010, RAL 7024, RAL 3000, RAL 6011. Standard colours of internal skins are: RAL 9010, RAL 9002. Applications PROMISOL / FRIGOTHERM / ONDATHERM sandwich panels are used especially for the construction of halls, industrial plants and public facilities (shopping malls, logistic depots, sport halls etc.). Apart from being used for cladding curtain walls and roofing systems, PROMISOL / FRIGOTHERM / ONDATHERM panels are also used as partition walls, suspended ceilings or load-bearing walls in small refrigerated vehicles, construction site back-up facilities and outbuildings. Rich colour palette and a selection of panel profile shapes allow completing a variety of interesting facilities. PROMISOL / FRIGOTHERM / ONDATHERM panels can be mounted both in vertical and in horizontal position. Thermal insulating core material is made of polyurethane (PIR) according to EN13165. Joint of PIR core in types 1003B, 2003BI and 1001TS is sealed with PE-foamed gasket. The products must comply with the Regulation (EU) No 305/2011 taking into account the harmonized technical specification in accordance with EN14509. Declarations of Performance and CE mark have been issued for the products. Fastening panels to support structures PROMISOL / FRIGOTHERM / ONDATHERM sandwich panels are fastened to the steel structure by means of self-drilling fasteners (screws). Using this technique eliminates the need to drill a through hole in the panel and a lead hole in the bearing structure. The fasteners increase the fastening reliability and reduce number of necessary tools to a power screwdriver (before it required a driller, drills and a screwdriver). Maximum steel thickness to screw for self-tapping fasteners is 16 mm. They are made of quenched carbon steel with an anti-corrosion protective surface coating. All fasteners come with aluminum or steel washers with vulcanized EPDM rubber. In case of steel structures whose the thickness exceeds 16 mm as well as wooden and concrete structures, it is possible to use other fasteners: - in case of steel base (thicker than 16 mm) or wooden base – it is recommended to use self-tapping fasteners with a properly shaped working thread profile; - in case of concrete base – it is recommended to use fasteners with an anchor element or self-tapping with a properly shaped working thread profile. PROMISOL / FRIGOTHERM / ONDATHERM normally are fastened in the following way: - PROMISOL 1003B cladding panel with visible fix – is fixed to the bearing structure with two fasteners along its cover width; - PROMISOL 2003BI cladding panel with secret fix – is fixed at each connection point to the steel structure with two fasteners through a steel profile (washer) the so-called load distributor; - FRIGOTHERM 1003BC cladding panel with visible fix – is fixed to the bearing structure with two fasteners (special coldroom types) along its cover width; - ONDATHERM 1001TS roofing panel – is fixed with two connectors along its width to the steel structure together with roof saddles. Number of fasteners depends from climatic loading (snow and wind loading conditions). Depending on the type of the material, to which are fastened sandwich panels, are applied self-tapping steel fasteners (are differentiated fasteners to cold-bended steel and hot-bended), wood or concrete. More information about sandwich panels with PIR core (PROMISOL / FRIGOTHERM / ONDATHERM) can be found on the ArcelorMittal Construction website https://constructionpolska. arcelormittal.com