Guarantees against chalking and fading are usually 5 to 10 years shorter than film-integrity warranties. Understand the Finish WarrantyĪ coating with a 45-year warranty sounds great, but usually covers only the integrity of the paint film: cracks, chips, or peeling. Expect noticeable fading in about 10 years. Silicone-modified polyester (SMP): These paints are applied to less expensive metal roofing with warranties that cover color defects for about 25 years. You’ll find them on premium roofing products with 30-year warranties against fading and chalking, a powdery residue on the paint surface. Polyvinylidene fluoride (PVDF): Specialty metal paints such as Kynar 500 or Hylar 5000 are widely recognized as being the most durable and UV resistant out there. These factory-applied coatings enhance the appearance and longevity of steel and aluminum roofing: Shown: Boral Steel Pine-Crest Shake in Charcoal, from $3.50 per square foot Boral Paint Finishes for Metal Roofing It also has a Class A fire rating, a 50-year warranty, and can withstand 120 mph winds. Then they’re covered with fade-resistant ceramic granules that give this roofing its variegated color and distinctive lack of sheen. Like other steel roofing, these Galvalume panels are pressed into shapes resembling shakes, tiles, or shingles.

Metal tin roofs