4c01091d-337b-47fe-b610-5f518bddf830Metal panels, wall, at plantMaterials productionOther materialsThe Metal Building Manufacturers Association (http://www.mbma.com/) is a trade association established in 1956. The mission of the MBMA is to promote the design and construction of metal building systems in the low-rise, non-residential building marketplace. A metal building system is defined as an integrated set of components and assemblies, including but not limited to, frames that are built-up structural steel members, secondary members that are cold-formed steel or steel joists, and cladding components, specifically designed to support and transfer loads and provide a complete or partial building shell. MBMA members include manufacturers of metal buildings, and component products such as roof and wall panel systems.
Semi-finished steel products are integral commodities used in the production of upstream and the primary MBMA metal building products. This LCA project uses the most recent North American peer-reviewed “cradle-to-gate” LCI data excluding EOL recycling, issued by World Steel Association (WSA) on April 2013, of semi-finished steel products such as plate, hot rolled coil, cold rolled coil, hot-dip galvanized steel and scrap.
Metal wall panels (also known as claddings) produced by MBMA members typically have thicknesses ranging from 24 to 26 ga (0.022 to 0.018 inch). The average metal wall panels density resulted to 4.60 kg/m2 [94 lb/100 sq.ft].
This LCA study is conducted in accordance with ISO 14040:2006 and ISO 14044:2006. The study data, methods, results and report underwent an external critical review by a panel of interested parties as per Clause 6, ISO 14044:2006 and deemed compliant with ISO14040/44 standards. The members of the peer review panel included: Mr. Tom Gloria (Chair), Managing Director, Industrial Ecology Consultants; Mr. Jon Dettling, Quantis International, US Managing Director; and Mr. Bill Savitz, Director, Business Development, Garco Construction, Inc. (former MBMA Chair).
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Quality network: 3520United StatesIt represents the average US technology of metal roof panels for the reference years 2008-2013.Unit process, single operationAttributionalnoneISO 14044:2006. Environmental Management – Life Cycle Assessment – Requirements and guidelines. Methodology report, Life cycle inventory study for steel products25.0Primary LCI data were collected from 10 MBMA member companies from three discrete regions (East, Midwest and Western US), to represent the US industry average technology mix. These 10 plants produce all four products of interest (primary and secondary structural steel and wall and roof panels) and were deemed representative of the specific processes and the MBMA’s membership. The MBMA represents 41 different production facilities; as a result, the plant sample represents about 25% of all establishments.
“Mass” was deemed as the most appropriate physical parameter for allocation of the total inputs/outputs of the plant production system between primary frames, secondary frames, and roof and wall panel manufacturing lines. Data collection participants provided input and output data specific to each of four selected manufacturing processes. Then inputs/outputs were allocated over the total outputs of panel or framing on a mass basis.
A separate LCI model was created for each company per 1 short ton wall panels; all company specific LCI flows were then aggregated to form the final LCI dataset (based on weighted average factor as per plant contribution to the total annual production). The "input from technosphere" LCI data cannot be revealed for this product due to the confidentiality agreements associated with the project. Input data are rolled up and presented in "input from nature" format.No statementDr. Lindita Bushi 2019-02-01T00:00:00.000ILCD format 1.1Dr. Lindita Bushi 2019-02-01T00:00:00.00000.00.001Data set finalised; entirely publishedNREL US Life Cycle Inventory (USLCI) LibraryVarious (NREL USLCI)trueFree of charge for all users and usesGaBi (source code, database including extension modules and single data sets, documentation) remains property of thinkstep AG. thinkstep AG delivers GaBi licenses comprising data storage medium and manual as ordered by the customer. The license guarantees the right of use for one installation of GaBi. Further installations using the same license are not permitted. Additional licenses are only valid if the licensee holds at least one main license. Licenses are not transferable and must only be used within the licensee's organisation. Data sets may be copied for internal use. The number of copies is restricted to the number of licenses of the software system GaBi the licensee owns. The right of use is exclusively valid for the licensee. All rights reserved.Metal panels, wall, at plantOutput1.01.00Mixed primary / secondaryUnknown derivationvaluable