Heat Reflective Coating Service In Gujarat

Heat Reflection Coating (also known as cool roof coating, solar reflective coating, or thermal reflective coating) is a specialized surface treatment designed to reflect more sunlight and absorb less heat than standard roofing or wall materials. These coatings are widely used in buildings, industrial facilities, vehicles, and even pavements to improve thermal comfort and energy efficiency.

🔍 Key Details of Heat Reflection Coating

✅ Purpose

Reduce Heat Absorption: Reflects a significant portion of solar radiation.

Improve Energy Efficiency: Decreases need for air conditioning.

Extend Roof Life: Reduces thermal expansion and UV degradation.

Improve Comfort: Keeps indoor temperatures lower in hot climates.

🔬 Composition

Heat reflective coatings typically contain:

High Solar Reflectance Pigments (e.g., titanium dioxide, ceramic microspheres)

Acrylic or Elastomeric Polymers (for flexibility and adhesion)

UV Stabilizers and Additives (to resist weathering and yellowing)

🌡️ How It Works

Reflects Visible & Infrared Light: Instead of absorbing solar energy, the coating reflects it.

Emits Thermal Radiation: The material also cools itself by emitting infrared radiation (high thermal emittance).

Reduces Surface Temperature: Surfaces coated with reflective material can be 20–50°C cooler than untreated surfaces.

📈 Performance Metrics

Solar Reflectance (SR): % of solar energy reflected (ranges from 0 to 1; higher is better)

Thermal Emittance (TE): Ability to release absorbed heat (0 to 1 scale)

SRI (Solar Reflectance Index): Combined measure of reflectance and emittance

Example:

Material Solar Reflectance Thermal Emittance SRI

Black Roof 0.05 0.90 0

White Coating 0.85 0.90 >100

🧱 Types of Surfaces it Can Be Applied To

Concrete roofs

Metal roofs

Asphalt shingles (with suitable primer)

Wall exteriors (for building envelopes)

Pavements and roads

🧪 Benefits

Energy savings (up to 15–30% in cooling energy)

Reduced Urban Heat Island effect

Improved HVAC efficiency

Lower carbon footprint

Durability and UV protection

Compliance with green building standards (LEED, IGBC, ECBC)

🛠️ Application Process

Surface preparation: Clean and repair surface.

Primer (if needed): For better adhesion.

First coat: Applied with brush, roller, or spray.

Second/third coats: After curing, for proper thickness (typically 1–2 mm).

Inspection and testing: Check for cracks, blisters, or incomplete coverage.

⛔ Limitations

Less effective in cold climates (may reduce beneficial heat gain in winter).

Not a substitute for insulation (works best in combination).

Needs regular maintenance and reapplication every few years.

Limited performance on shaded or dusty surfaces.

🏗️ Popular Brands (India & Global)

India: Asian Paints SmartCare, Dr. Fixit HeatShield, Berger WeatherCoat

Global: GAF EnergyGuard, Henry Tropi-Cool, Koolseal, Rhino Shield