Nucor Econiq™ RE Metl-Span Insulated Wall and Roof Panels

Declaration details

Manufacturer

Nucor Corporation

Program operator

Smart EPD

Declaration number

SmartEPD-2026-143-0958-01

Date of issue

June 24, 2026

Valid until

June 24, 2031

Product category rules (PCR)

UL Part B: Insulated Metal Panels, Metal Composite Panels, and Metal Cladding (version 2)

Standard

ISO 14025:2006 and ISO 21930:2017

Declared unit

100 m2 of product

System boundary

Cradle to gate (A1 - A3)

Product specificity

Product Specific

Manufacturing specificity

Facility Specific

Manufacturing plants

Nucor Laurens (Nucor Insulated Metal Panel | Metl-Span, Hunter Industrial Park Road, Laurens, SC, USA); Nucor Hamilton (430 Sherman Avenue North, Hamilton, ON, Canada); Nucor Waterloo (305 Industrial Parkway, Waterloo, IN 46793, USA); Nucor Brigham City (1101 Watery Lane, Brigham City, UT 84302, USA); Nucor Prince George (6001 Quality Way, Prince George, VA 23875, USA)

Product category

Cladding › InsulatedWallPanels

Verifier

Brandie Sebastian

LCA software

Sphera LCA for Experts (formerly GaBi) 10.9

Program instructions

Smart EPD General Program Instructions v.2.0, March 2025

Life cycle assessment results

Results per 100 m2 of product.

Environmental Impact Assessment Results

Resource Use Indicators

Waste and Output Flow Indicators

ND = not declared. Life cycle modules: A1-A3 product stage, A4-A5 construction process, B use stage, C end of life, D benefits and loads beyond the system boundary.

Material composition

Hazardous substances

No regulated hazardous or dangerous substances are included in this product.

Product description

Metl-Span insulated metal panels (IMPs) consist of polyisocyanurate (PIR) foam between two sheets of galvanized and/or stainless steel. Several configurations of IMPs exist depending on where and how they are used (e.g. building walls, roofs, cold storage, etc.) and the styling as desired by the architect. Additionally, IMPs can be manufactured either on a continuous or discontinuous manufacturing line. Metl-Span panels are comprised of an advanced PIR core that is injected between two pre-finished steel sheets, forming a single, all-in-one unit. The result is a highly thermal efficient insulated panel. Finished panels are mounted to the building's framework, outboard of the structural supports and provide continuous insulation with no thermal bridges for maximum thermal efficiency. Metl-Span panels meet or exceed code requirements for foam plastic insulation.

Information for aforementioned products was supplied by five (5) Nucor IPG facilities located in Hamilton, Ontario, Canada; Laurens, SC, USA; Waterloo, IN, USA; Brigham City, UT, USA; and Prince George, VA, USA.

IMP are used for exterior wall and roof cladding systems as well as interior ceilings and wall partitions. They are installed in an array of industries including automotive, food production, EV battery plants, data centers, aviation, storage facilities, stadiums, healthcare, education, manufacturing, warehousing and more. IMPs are available in variety of configurations depending on the customer’s requirements, including panel profile, thickness, module, paint system and color.

In addition, Nucor manufactures steel to various customer-specific standards. The IMP core thickness varies according to building site. Therefore, this EPD reports LCA results for each thickness separately for each facility separately.

Thanks to their excellent insulating and weatherproofing characteristics, as well as their competitive installed cost, Metl-Span panels are ideally suited to use in walls, ceilings and roofs for commercial, industrial and institutional buildings of virtually any scale, in both new and retrofit construction. Successful applications include manufacturing facilities, warehousing and distribution centers; schools, sports complexes, museums and convention centers; corporate offices, banks and municipal buildings; retailing locations, including auto dealerships; aircraft hangars and service facilities.

This EPD is for Econiq™ RE Metl-Span Insulated Wall and Roof Panels, meaning that it accounts for Renewable Energy Credits (RECs) used to balance the impacts associated with grid electricity use for production of the IMP product. The data represented in this EPD is for a limited production volume (1,000 square meters) in 2025. Moving forward, Nucor will complete an annual end of year review with Smart EPD of actual RECs purchased and retired over the previous calendar year and update the EPD as needed. The RECs will be purchased and retired during the same period as represented by the EPD.

Interpretation

In order to facilitate a more detailed understanding of the contributions from different processes, an analysis is included in this section which details the contribution from Modules A1, A2, and A3.

The impact assessment results indicate that Module A1, i.e. Raw Materials, is the largest contributor to potential environmental impact categories for global warming potential, ozone depletion potential, acidification potential, eutrophication potential, smog formation potential, and abiotic resource depletion potential of fossil energy resources. Module A2, i.e. transport to IPG, and Module A3, i.e. manufacturing at the IPG facility, are not the most significant contributor to any impact category.

The use of renewable energy through EACs resulted in a 0.1-5.6% reduction in the A1-A3 GWP impacts.