How Commercial Roof Coatings Save Energy

A reflective roof coating is one of the most cost-effective energy upgrades you can make. Here's how it works and what to expect.

The Science of Cool Roofs

Traditional dark roofs absorb up to 90% of solar energy, converting it to heat. Reflective coatings reverse this:

• Reflective coatings: Reflect 80-90% of solar energy
• Roof temperature reduction: 50-80°F cooler
• Interior temperature impact: 5-10°F cooler

Measured Energy Savings

Studies show reflective roof coatings deliver:

• 10-30% reduction in cooling costs
• 5-10% reduction in peak energy demand
• 2-5 year payback on coating cost

Real Numbers

A 20,000 SF building in Virginia:

• Before coating: $15,000 annual cooling cost
• After coating: $11,000 annual cooling cost
• Annual savings: $4,000
• Coating cost: $10,000
• Payback: 2.5 years

Cool Roof Standards

ENERGY STAR Requirements

• Initial solar reflectance: ≥0.65
• 3-year aged reflectance: ≥0.50
• Thermal emittance: ≥0.75

Title 24 (California Standard)

Many states are adopting California's cool roof requirements as a model.

Coating Options by Reflectivity

Additional Benefits

Beyond energy savings, cool roofs provide:

• Extended membrane life (UV protection)
• Reduced urban heat island effect
• Lower HVAC maintenance costs
• Improved occupant comfort
• Potential utility rebates

Is a Cool Roof Right for You?

Best candidates:

• Buildings with high cooling loads
• Older dark-colored roofs
• Buildings with inadequate insulation
• Operations sensitive to interior temperature

Getting Started

NovaRoof can assess your current roof and recommend the best coating system for energy savings. Contact us for a consultation.