AAMA Coating Specifications
Understanding the three performance tiers for architectural aluminum finishes and how to choose the right one for your project.
What is AAMA?
The American Architectural Manufacturers Association (AAMA) establishes voluntary performance standards for architectural coatings. These specifications define minimum requirements for durability, color retention, and weathering resistance. Specifying the right AAMA tier ensures your project receives coatings appropriate for its environmental exposure.
AAMA 2603
1-year South Florida exposure
Typical Warranty
1-3 years typical
Typical Applications
- Interior applications
- Low-exposure exterior
- Residential windows
- Light commercial
Key Requirements
AAMA 2604
5-year South Florida exposure
Typical Warranty
5-10 years typical
Typical Applications
- Commercial windows & doors
- Mid-rise buildings
- Storefronts
- Curtain wall components
Key Requirements
AAMA 2605
10-year South Florida exposure
Typical Warranty
Up to 20 years
Typical Applications
- High-rise buildings
- Coastal environments
- Landmark projects
- Harsh climates
Key Requirements
Specification Comparison
Side-by-side comparison of AAMA coating performance tiers.
| Property | AAMA 2603 | AAMA 2604 | AAMA 2605 |
|---|---|---|---|
| Typical Warranty | 1-3 years | 5-10 years | Up to 20 years |
| Florida Exposure Test | 1 year | 5 years | 10 years |
| Color Retention (Delta E) | Basic | ≤5 @ 5 yrs | ≤5 @ 10 yrs |
| Chalk Resistance | Basic | ≥8 rating | ≥8 rating |
| Gloss Retention | Standard | ≥50% | ≥50% |
| Typical Coating System | 1-2 coat | 2-3 coat | 70% PVDF liquid or FEVE powder |
| Cost Level | $ | $$ | $$$ |
Choosing the Right Specification
Guidelines for specifying AAMA tiers based on project requirements.
1 When to Specify AAMA 2603
Choose 2603 for interior applications, residential projects with limited environmental exposure, or budget-conscious projects where long-term weathering isn't a primary concern. Not recommended for exterior applications in harsh environments or high-visibility commercial projects.
2 When to Specify AAMA 2604
The workhorse specification for most commercial projects. Ideal for mid-rise buildings, commercial storefronts, and curtainwall systems in moderate climates. Provides excellent value with meaningful performance improvements over 2603.
3 When to Specify AAMA 2605 (Recommended for Landmark Projects)
Required for high-rise buildings, coastal applications, harsh environments, and any project where long-term appearance is critical. The only specification that qualifies for 20-year warranties. Uses 70% PVDF resin systems (Kynar 500 or Hylar 5000) for liquid coatings, or FEVE powder systems.
Spectrum Meets All AAMA Specifications
We're certified to apply coatings meeting AAMA 2603, 2604, and 2605 specifications. Our liquid coating lines apply 70% Kynar 500 and Hylar 5000 PVDF systems, and our powder line applies FEVE powders for 2605 compliance. We back all systems with warranties up to 20 years.
Need help specifying coatings?
Our technical team can help you choose the right AAMA specification for your project.