Heat Reflective Coatings for Metal Roofs: What Homeowners in Colorado and Georgia Should Know

If your home or building has a metal roof—or you're planning to install one—adding a heat reflective coating could significantly improve your energy efficiency and comfort. This simple upgrade can reduce indoor temperatures, lower cooling bills, and protect your roofing investment for years.

Here’s what you need to know.

What Is a Heat Reflective Roof Coating?

Heat reflective coatings are specialized finishes applied to metal roofs that reflect a higher percentage of the sun’s radiant energy—especially infrared radiation. These coatings typically use light-colored or reflective pigments to minimize heat absorption.

They can:

• Reflect up to 80% of solar heat

• Lower roof surface temperatures by 30–60°F

• Reduce attic heat buildup and cooling loads

Why It Matters in Colorado and Georgia

Colorado:

• Hot summers with intense UV exposure at higher altitudes

• Roofs at elevation heat up faster and longer

• Reducing indoor heat gain protects attic insulation and roof decking

Georgia:

• Long, humid summers lead to high AC demand

• Reflective roofs reduce thermal strain on older HVAC systems

• Helps prevent heat-related moisture buildup in attics

Key Benefits of Reflective Coatings on Metal Roofs

• Lower Cooling Bills: Less heat entering your home means your AC works less.

• Increased Indoor Comfort: Cooler attic space means less radiant heat into rooms below.

• Longer Roof Lifespan: Lower surface temperatures reduce expansion, contraction, and coating breakdown.

• Improved Environmental Performance: Helps meet energy efficiency goals and may qualify for rebates or LEED credits.

• Better Hail Resilience: Cooler roofs resist softening and UV breakdown, helping coatings maintain performance after impact.

Coating Options & What to Look For

Choose coatings specifically rated for high solar reflectance and thermal emittance. Look for:

• ENERGY STAR® certification

• Cool Roof Rating Council (CRRC) rated products

• High reflectivity (≥ 0.70) and high emissivity (≥ 0.75)

Acrylic and silicone coatings are common choices:

• Acrylic: Lower cost, easy to apply, UV-resistant

• Silicone: Best for ponding water, lasts longer, more expensive

Is It Worth It?

Yes—especially for:

• South-facing roofs with no shade

• Light commercial or multifamily properties

• Older homes without radiant barriers or attic fans

Costs range from $1.50–$3.00 per square foot, including labor. Most homeowners see a return on investment through energy savings within 5–7 years.

Common Questions

How long do reflective roof coatings last?

Most coatings last 10–15 years, depending on product type and UV exposure. Some silicone options exceed 20 years with maintenance.

Can I coat an existing metal roof?

Yes. The roof must be cleaned and primed before application. Surface rust or aging paint must be treated first.

Will this stop leaks?

No. Reflective coatings are not waterproofing products—though some silicone-based versions can help seal minor seams. For leaks, address flashing, underlayment, or fastener issues first.

Does this work with standing seam metal roofs?

Yes. Standing seam panels are ideal for coatings, offering smooth surfaces and fewer joints.

Get Expert Help

At Roof Nuts, we specialize in metal roofing across Colorado and Georgia. Whether you’re in Denver, Atlanta, or any city in between, we can inspect your roof and help you decide if a reflective coating is right for you.

📍 Colorado: https://RoofNutsCO.com | 📞 303-276-2403
📍 Georgia: https://RoofNutsGA.com | 📞 404-476-6851

Need a quote? Contact us today and ask about our reflective metal roof coating services.