What it is
SunShield Pro is a water-based, 100% acrylic solar-reflective exterior coating engineered for cool wall and cool roof performance. It's designed for sun-exposed stucco, concrete/masonry, and roof substrates where reducing heat gain matters such as residential exteriors, warehouses, metal buildings, mobile homes, and commercial flat roofs.
Unlike standard exterior paint, SunShield Pro is formulated and tested against the radiative metrics that define cool roof and cool wall performance: solar reflectance, thermal emittance, and SRI. It meets California Title 24 cool roof thresholds for low-slope roof applications.
Tested performance
The most objective way to compare "cooling" coatings is through measured radiative properties. SunShield Pro's third-party tested values:
| Metric | SunShield Pro | Why it matters |
|---|---|---|
| Solar Reflectance (SR) | 0.825 | Higher = less solar energy absorbed by the surface |
| Thermal Emittance (TE) | 0.856 | Higher = more efficient heat release |
| Solar Reflectance Index (SRI) | 102 | Combined "coolness" score; industry standard for comparison |
For reference, Title 24 Part 6 requires aged SR ≥ 0.63, TE ≥ 0.75, or SRI ≥ 75 for low-slope roofs in regulated climate zones. SunShield Pro's initial values significantly exceed these thresholds. Real-world results always vary by climate, exposure, texture, color, and installation.
How SunShield Pro compares to other options
When homeowners and contractors search for "cool" or "heat reflective" exterior paint, they typically find three categories of products. Here's how they stack up:
| Big box exterior paint | Other reflective coatings | SunShield Pro | |
|---|---|---|---|
| Publishes solar reflectance | No | Sometimes | Yes — 0.82 |
| Publishes thermal emittance | No | Sometimes | Yes — 0.86 |
| Publishes SRI | No | Sometimes | Yes — 102 |
| Meets cool roof standards | No | Rarely | Yes |
| Rated for roof application | No | Varies | Yes |
| Title 24 compliant | No | Varies | Yes |
| Primary engineering goal | Color + weather protection | Varies | Documented heat load reduction |
Compared to Behr, Valspar, Sherwin-Williams and other big box exterior paints
High-quality exterior paints from home center brands are formulated for color retention, adhesion, and weather durability — not for measured solar performance. They generally don't publish solar reflectance, thermal emittance, or SRI values on their technical data sheets because cooling performance isn't what they're engineered for.
If a gallon of exterior paint doesn't list these numbers, it isn't a cool wall or cool roof product regardless of marketing language around "reflective" pigments or "cool" color collections. These are excellent paints for what they do, but they're not in the same product category as SunShield Pro.
Compared to other specialty reflective coatings
A handful of elastomeric and cool wall coatings publish some radiative data. Values vary widely, and many competing products have solar reflectance values well below 0.50 — below the threshold required to qualify as a cool roof under most rating programs. SunShield Pro's solar reflectance of 0.82 and SRI of 102 are in the upper end of the commercial cool roof category, not the middle of it.
Compared to "ceramic," "thermal," or "insulating" paint additives
Some products market themselves as ceramic, thermal, or insulating paint. Often these are just additives mixed into standard paint. These products generally don't publish standardized SR, TE, or SRI values, relying instead on broad claims about heat reflection or R-value. Without numbers tied to ASTM testing, there's no objective way to compare them. If documented cooling performance is your goal, SRI is the metric to look for.
Who SunShield Pro is for
Residential
- Homeowners with sun-exposed stucco, concrete, or masonry walls — especially south and west facing elevations in Texas, Arizona, California, Florida, and other hot-climate regions
- Mobile home owners looking to reduce roof heat gain and cooling load
- Homes with dark or aged exterior walls running hot in summer
Commercial
- Warehouses, metal buildings, and industrial facilities with flat, low-slope, or metal roofs
- Light commercial buildings with masonry or stucco exteriors
- Projects requiring Title 24 compliance or cool roof documentation for permits, rebates, or LEED credit
Not a fit
- Interior walls (exterior only)
- Vinyl or wood siding (designed for masonry, stucco, concrete, and roof substrates)
- Projects where appearance is the primary goal — a standard premium exterior paint is a better choice
Recommended surfaces
- Smooth concrete: walls and masonry surfaces
- Light-texture masonry/stucco
- Heavy stucco
- Roofs: low-slope/flat, metal, modified bitumen/BUR, spray foam (SPF), concrete 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 and performance.
Durability & weathering
- Outstanding UV resistance
- Great weatherability and 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 — 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.
Specifications & documents
- TDS / SDS: available soon (in production)
- ASTM Studies: SRI Study
FAQs
- How is SunShield Pro different from Behr, Valspar, or Sherwin-Williams exterior paint?
- Standard exterior paints from big box and home center brands are engineered for color and weather durability, not measured solar performance. They generally don't publish solar reflectance, thermal emittance, or SRI values on their technical data sheets. SunShield Pro publishes all three (SR 0.82, TE 0.86, SRI 102) because it's specifically formulated and tested for cool wall and cool roof performance. It's a different category of product — not a competitor to a premium exterior wall paint.
- What is "cool wall paint"?
- "Cool wall" coatings are exterior wall paints and 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, and roofs.
- 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. SunShield Pro's tested SRI is 102, which is excellent.
- What's the minimum SRI for a cool roof?
- Requirements vary by program and climate zone, but California Title 24 — one of the strictest standards in the U.S. — requires an aged SRI of 75 for low-slope roofs in regulated climate zones as an alternative compliance path, or aged solar reflectance ≥ 0.63 with thermal emittance ≥ 0.75. SunShield Pro's tested values exceed these thresholds.
- Can SunShield Pro be used on warehouse or metal roofs?
- Yes. SunShield Pro is rated for metal roofs, low-slope and flat roofs, modified bitumen and built-up roofing (BUR), spray polyurethane foam (SPF), and concrete decks. It's a common choice for warehouse, industrial, and light commercial applications where reducing roof heat load cuts HVAC costs meaningfully.
- Can SunShield Pro be used on a mobile home roof?
- Yes. Reducing solar heat gain on a mobile home roof is one of the highest-value applications for this kind of coating, because mobile homes typically have minimal roof insulation and sun-exposed metal or low-slope surfaces that run hot. Follow standard surface prep for the specific substrate.
- 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 and 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.
