FGIA has released updated 2026 editions of its three foundational aluminum coatings specifications—the 'good, better, best' standards that govern factory-applied finishes on extrusions and panels. Here's what architects, glaziers, and curtain wall fabricators need to know before their next spec revision.
A Quiet Update With Loud Implications for Building Envelope Specs
On May 19, 2026, the Fenestration and Glazing Industry Alliance released updated versions of the three aluminum coatings specifications that quietly govern nearly every painted extrusion and metal panel on a commercial façade. The Fenestration and Glazing Industry Alliance (FGIA) has released an updated suite of documents describing test procedures and performance requirements for pigmented organic coatings applied to aluminum extrusions and panels for architectural products.
The trio—now carrying the -26 suffix—replaces the 2022 editions that have been the reference point on storefront, curtain wall, window, sunshade, and metal panel specs for the past four years. The trio was last updated in 2022.
The new documents are:
- AAMA 2603-26, Voluntary Specification, Performance Requirements and Test Procedures for Pigmented Organic Coatings on Aluminum Extrusions and Panels (with Coil Coating Appendix)
- AAMA 2604-26, Voluntary Specification, Performance Requirements and Test Procedures for High Performance Organic Coatings on Aluminum Extrusions and Panels (with Coil Coating Appendix)
- AAMA 2605-26, Voluntary Specification, Performance Requirements and Test Procedures for Superior Performing Organic Coatings on Aluminum Extrusions and Panels (with Coil Coating Appendix)
Why These Three Specs Matter More Than Their Page Count Suggests
For anyone who has ever written a Division 08 curtain wall section or a Division 07 metal panel section, the 2603/2604/2605 hierarchy is the shorthand the entire industry uses to talk about durability. "These three documents describe the 'good, better, best' category of aluminum finishes," said Rich Rinka, FGIA Staff Liaison for the FGIA AMC Finishes Committee.
The practical hierarchy hasn't changed:
- AAMA 2603 — Interior and light-duty residential coatings, generally less than 1 mil thick.
- AAMA 2604 — Mid-tier 50% fluoropolymer systems suitable for storefronts, doors, and high-traffic exterior applications.
- AAMA 2605 — The 70% PVDF benchmark for monumental architectural projects, with the longest color and gloss retention requirements.
For commercial exterior cladding, AAMA 2605 has long been the default specification, with the lower tiers reserved for interior applications where weatherability is not a concern.
What's New in the 2026 Editions
FGIA describes the 2026 revision primarily as a refinement rather than a wholesale rewrite. This update provides additional guidance on the pretreatment conversion coatings. Pretreatment chemistry is where most field failures actually start—a coating can hit every weathering target in the lab and still delaminate within five years if the chromate-free or zirconium pretreatment was misapplied or specified incorrectly for the alloy.
The stated intent of the documents remains practical: "They are intended to assist the architect, owner and contractor to specify and obtain factory-applied organic coatings which will provide and maintain a good level of performance in terms of film integrity, exterior weatherability and general appearance over a period of many years."
What Architects and Spec Writers Should Do This Quarter
If your master spec still references AAMA 2605-22 (or, worse, AAMA 2605-17), you have a housekeeping task on your hands:
- Update Division 08 41 13 (storefronts), 08 44 13 (curtain walls), and 08 51 13 (aluminum windows) to reference the -26 editions.
- Update Division 07 42 13 (metal wall panels) and any sunshade, louver, or column cover sections that call out factory-applied PVDF or FEVE finishes.
- Coordinate with your finishers. Applicators like Linetec, Valspar-certified shops, and powder coaters typically move quickly to certify against the new edition, but transition periods exist. Confirm whether your fabricator's current line is certified to -22, -26, or both, and whether any pretreatment chemistry changes affect lead times.
- Reissue product approval submittals carefully. A submittal citing AAMA 2605-22 is not automatically non-compliant on a spec calling for AAMA 2605-26, but reviewers should verify the pretreatment language matches.
What Manufacturers and Glaziers Need to Watch
For extruders, finishers, and unitized curtain wall fabricators, the bigger question is how quickly certification listings migrate. The previous 2022 update took several quarters to fully propagate through finisher marketing literature, AAMA Verified Components Library entries, and master spec libraries like ARCAT and BSD SpecLink.
The documents are not free. These standards, as well as other documents available from FGIA, may be purchased from the online store at the discounted member rate of $25 or the non-member price of $70. That's a modest pricing increase from the $20/$60 structure of the 2022 edition, but still trivial compared to the cost of a façade recoating program triggered by an out-of-date pretreatment spec.
The Bottom Line
This is not a headline-grabbing innovation story. It is, however, the kind of standards update that every project specification touches and that every façade consultant should already be reading. With pretreatment chemistry under continued scrutiny—particularly as the industry moves away from hexavalent chromium conversion coatings—the -26 editions give specifiers a more current reference point for the painted aluminum that defines the visible exterior of most commercial buildings.