Taylor Metal’s Polar White ArmorTech™ coating on 26-gauge steel delivers the only metal panel in its class with a 40-year warranty and an independently tested Solar Reflectance Index (SRI) of 90. For Montana contractors dealing with intense summer sun and extreme temperature swings, that SRI 90 rating provides measurable cooling load reduction.
This isn’t just another white metal panel — it’s a silicone-modified polyester (SMP) coating system with a two-coat application at 1 mil thickness. The low-gloss finish (10-15% sheen) cuts glare while maintaining that critical reflective performance.
Technical Specifications and Testing
The coating meets serious testing standards: ASTM E1980 for SRI, ASTM E1680 for air infiltration, ASTM E1646 for water infiltration, and ASTM E1592 for negative static air pressure. Additional certifications include UL 580 Class 90 for wind uplift, UL 790 Class A for fire rating, and UL 2218 Class 4 for impact and hail resistance.
| Specification | Value | Source |
|---|---|---|
| Solar Reflectance Index (SRI) | 90 | tested |
| Thickness | 0.019 inches | manufacturer |
| Sheen | 10-15% | manufacturer |
| Maximum Panel Length | 45 feet | manufacturer |
| Maximum Flashing Length | 20’ 11” | manufacturer |
| Minimum Roof Slope | 1:12 with butyl sealant | manufacturer |
Base metal options include G-90 Galvanized (ASTM A653/A924) or AZ-50/AZ-55 Zincalume/Galvalume (ASTM A792). Color-matched neoprene-washered screws and butyl sealant at joints complete the weatherproof installation.
Warranty Coverage That Actually Matters
The residential 40-year limited warranty covers color fade and chalking resistance. Taylor Metal specifically guarantees their ArmorTech coating won’t peel, check, flake, or crack for 40 years under normal atmospheric conditions. Commercial projects get 20-year or 30-year warranty options.
Among standard ArmorTech colors, Polar White delivers the highest SRI rating at 90. While ArmorTech SMP costs less than Kynar 500 (PVDF) coatings, it’s become the standard high-performance coating for residential applications in Taylor Metal’s lineup.
Panel Compatibility and Applications
The coating works with nine different panel profiles: Max-Corr™, GR-7™, T-3™, PBR™, HR-34™, Marion ‘R’ Panel™, Classic 7/8” Corrugated, MS-150™, and StreamLine™ Standing Seam. Applications span residential roofing and siding, agricultural buildings like barns and equipment sheds, and commercial projects.
Like all light-gauge steel products, these panels exhibit oil canning — that visual waviness is inherent to the material, not a defect. Taylor Metal acknowledges this characteristic as normal.
Professional installations across projects like the Freedom Center and PBR Barn demonstrate this as a widely-used standard color, with general feedback indicating Taylor Metal ArmorTech delivers as a popular, durable, and cost-effective system for residential use.
FAQ
What makes the SRI 90 rating significant for Montana installations?
The Solar Reflectance Index of 90 represents the highest rating among standard ArmorTech colors, directly reducing cooling loads during Montana’s intense summer sun. Higher SRI means less heat absorption, lower cooling costs, and reduced thermal stress on the entire roofing system.
How does the 40-year warranty compare to other 26-gauge options?
The 40-year residential limited warranty covers both color fade and chalking resistance. Taylor Metal guarantees the coating won’t peel, check, flake, or crack for the full warranty period under normal atmospheric conditions. Most 26-gauge panels offer significantly shorter warranty coverage.
What’s the real-world installation range for roof slopes?
Minimum slope starts at 1:12 when using butyl sealant, ranging up to 3:12 depending on the specific panel profile selected. Maximum panel lengths reach 45 feet, with trim and flashing pieces limited to 20’ 11”.
Is oil canning covered under warranty?
Oil canning is an inherent characteristic of all light-gauge steel panels — it’s specifically not considered a defect. This visual waviness appears in all manufacturers’ light-gauge products and doesn’t affect performance.
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