What it is
SunShield Pro is a water-based, 100% acrylic exterior wall and roof coating designed primarily for sun-exposed stucco, concrete/masonry and roofs. It is a "cool wall" coating engineered to reflect more solar energy and release heat effectively (high reflectance + high thermal emittance), which helps reduce wall heat gain compared to typical exterior coatings.
- Cooling-focused exterior wall and roof coating: made for vertical surfaces like stucco and concrete walls and horizontal surfaces like roofs
- Measured radiative performance: solar reflectance + thermal emittance + calculated SRI.
- Easy application: spray or roll; water-based cleanup.
- Exterior durability: outstanding UV resistance, weatherability, and water resistance.
Tested performance (reflectance, emittance & SRI)
When comparing "cooling" coatings, look for measured radiative properties (not just marketing claims). SunShield Pro reports the following values:
| Metric | Reported value | Why it matters |
|---|---|---|
| Solar Reflectance | 0.825 | Higher reflectance means less solar energy absorbed by the wall surface. |
| Thermal Emittance | 0.856 | Higher emittance means the surface releases heat more effectively. |
| Solar Reflectance Index (SRI) – Medium Wind | 102 | SRI combines reflectance and emittance into a single "coolness" number used in many comparisons. |
Important: Lab/standard test values describe radiative properties of the coating itself. Real-world results vary by climate zone, wall orientation (especially west/south exposures), texture, color selection, installation quality, and surrounding surfaces.
Recommended surfaces
- Smooth concrete: walls and masonry surfaces
- Light-texture masonry/stucco
- Heavy stucco
- Roofs
- Exterior roofs (typical coating candidates):
- Low-slope / flat roofs
- Metal roofs
- Modified bitumen / BUR
- Spray foam roofs (SPF)
- Concrete roof decks
Application & coverage
Application methods
- Application: spray or roll
- Cleanup: water (water-based)
- Viscosity: 90–95 KU
Coverage rates (by surface texture)
| Surface | Estimated coverage |
|---|---|
| Smooth concrete | 250–400 sq ft |
| Light texture | 150–250 sq ft |
| Heavy stucco | 100–150 sq ft |
Coverage depends on porosity, texture, and the film build needed to achieve uniform hide/performance.
Durability & weathering
- Outstanding UV resistance
- Great weatherability/Water resistance
Color options & in-person reference samples (Home Depot)
SunShield Pro uses its own color names. For convenience, we've identified reference matches you can view in person at Home Depot using Behr Dynasty One Coat chips. These are intended for in-store evaluation but we don't guarantee an exact match.
- Almond — Behr Dynasty "Almond Butter" MQ2-23
- Bay Gray — Behr Dynasty "Greige" PPU24-11
- Cappuccino — Behr Dynasty "Toffee Crunch" 700D-5
- Caramel — Behr Dynasty "Burnt Toffee" S230-6
- Desert Sand — Behr Dynasty "Yuma Sand" HDC-NT-18
- Graphite — Behr Dynasty "Graphic Charcoal" N500-6
- Hay Bail — Behr Dynasty "Hayloft" MQ2-22
- Hunter Green — Behr Dynasty "Bonsai Trunk" N380-6
- Mocha — Behr Dynasty "Ottertail" N220-5
- Ocean Mist — Behr Dynasty "Half Sea Fog" N470-3
- Simply White — Behr Dynasty "Simply White" BWC-01
- Soft Gray — Behr Dynasty "Anonymous" 780F-5
- Taupe — Behr Dynasty "Chic Taupe" N230-4
- Vintage White — Behr Dynasty "Antique White" 23
- Custom colors are available for bulk orders. Contact us for assistance.
Tips:
- Lighting, texture, and surrounding materials can change how a color reads. Always test a sample on your actual surface before committing.
- Digital screens(like the one you're looking at right now) do not represent paint colors properly. Paint reflects light, screens emit light. We always recommend looking at a real world sample first.
How it compares to other "cooling" coatings
Compared to standard exterior paint
High-quality exterior paints excel at protection and appearance, but they don't always publish or target measured reflectance/emittance/SRI. If cooling performance is your priority, those measured radiative properties are the most objective way to compare options.
Compared to "thermal / insulating / ceramic" paints
Some products make broad "insulating" claims without clear, comparable radiative metrics. When evaluating alternatives, look for transparent performance values (solar reflectance, thermal emittance, and calculated SRI) and be cautious of claims that don't tie back to standardized testing.
Specifications & documents
- TDS / SDS: available soon (in production)
- ASTM Studies: SRI Study
FAQs
- What is "cool wall paint"?
- "Cool wall" coatings are exterior wall paints/coatings formulated and tested to reflect more solar energy and release heat effectively (high reflectance + high thermal emittance), which can reduce wall heat gain versus typical coatings.
- Is this the same as a cool roof coating?
- Yes and no. Many reflective products are roof-first. SunShield Pro is positioned for both exterior masonry walls (stucco/concrete) where texture, vertical application, and wall performance matter as well asroofs.
- What is SRI and what's considered "good"?
- SRI (Solar Reflectance Index) combines solar reflectance and thermal emittance into a single number used to compare how "cool" a surface runs in the sun. Higher is better. Tested results validate SRI for SunShield Pro at 102, which is extremely good.
- Do darker colors reduce cooling performance?
- Typically, yes—darker colors usually reflect less solar energy than lighter colors. If maximizing cooling performance is your goal, choose lighter shades and confirm with a sample.
- Can I spray or roll SunShield Pro?
- Yes. It's intended for spray or roll application, and it's water-based for easier cleanup with water.
- How much coverage should I expect on stucco?
- Coverage varies by texture. As a guideline: smooth concrete 250–400 sq ft, light texture 150–250 sq ft, heavy stucco 100–150 sq ft. Porosity and film build can change results—plan a small test area if your surface is highly absorbent.
- What surfaces is it best for?
- SunShield Pro is recommended for exterior stucco, concrete, and masonry walls and various roof types especially sun-exposed elevations.
- Will this guarantee lower energy bills?
- No. While high reflectance/emittance can reduce heat gain, actual savings depend on climate, building design, insulation, HVAC efficiency, wall orientation, color selection, and installation quality.
- Is it California Title 24 compliant?
- The manufacturer states it is Title 24 compliant. If you need documentation for a project submittal, contact us and we'll share the most current supporting materials available.
