Architects: Specify IAS Accredited Metal Building Contractors & Fabricators

Accreditation Demonstrates Competence

Choose from the lists of IAS Accredited Companies

When you specify a metal building, it’s important to know that you are choosing both metal building system fabricators and metal building contractors that are competent and that you can trust to do the work. IAS has made this possible with the AC472 Metal Building Systems Inspection Accreditation Program and the AC478 Metal Building Assembler Inspection Accreditation Program.

The International Accreditation Service® (IAS), a subsidiary of the International Code Council (ICC), is an independent, nonprofit accreditation body, which accredits both metal building manufacturers and metal building contractors.

An IAS team of assessors conducts onsite assessments of companies seeking accreditation. The assessments are based on IAS accreditation criteria and related industry standards. IAS only accredits the companies that demonstrate compliance with strict accreditation requirements. Annual assessments are required by IAS to maintain accreditation. These lists of IAS accredited companies are available for free access on the IAS website.

Metal Building Systems Fabricators List
Specify companies that are accredited for IAS AC472 to design and fabricate metal building systems.

Metal Building Assemblers List
Specify companies that are accredited to IAS AC478 to assemble metal buildings.

Specification Language Templates

When you need to use specification language in your work, choose the IAS Template Specification Language to help you select accredited companies for your next metal building project.

• Specification Language for IAS AC472 Accredited Metal Building System Companies
• Specification Language for IAS AC478 Accredited Metal Building Assemblers

What are the Criteria used by IAS to Accredit Companies?

• Accreditation Criteria for Inspection Programs for Manufacturers of Metal Building Systems AC472^®
• Accreditation Criteria for Inspection Practices of Metal Building Assemblers AC478^®

The IAS accreditation programs for metal building systems are recognized by the Metal Building Contractors and Erectors Association (MBCEA) and the Metal Building Manufacturers Association (MBMA).

Read the full Benefits of Selecting Accredited Metal Building Manufacturers and Erectors brochure here.

Join the Architects List! - Get the latest information about the accreditation programs that can benefit architects. To join, click here.

Get the latest information about IAS AC478 Accreditation for Metal Building Assemblers by joining the AC478 LinkedIn Group