SolarPowerNerd
Solar reflective paints and coatings fall into three main chemistries, each with different strengths. Elastomeric coatings are thick, rubberized, and stretch with roof expansion and contraction, making them the best choice for flat roofs that need waterproofing and heat reflection in one coat.
Acrylic-based reflective paints are thinner, easier to apply, and work well on metal and sloped surfaces but do not bridge cracks the way elastomerics do. Silicone coatings resist ponding water better than either and hold up well in humid climates, though they cost more per gallon.
The number that matters most is solar reflectance index (SRI), which measures how effectively a surface rejects solar heat on a scale where a standard black surface scores 0 and a white surface scores around 100. High-quality reflective coatings hit an SRI of 105 to 115 and can drop roof surface temperatures by 50 to 80 degrees Fahrenheit on a summer day.
Coverage rate also varies widely. Some products cover 50 to 75 square feet per gallon at the recommended mil thickness, while others stretch to 100 or more but apply thinner and may need a second coat.
Below are 10 solar reflective paints and coatings compared by chemistry type, SRI rating, coverage per gallon, and expected lifespan before recoating.
Quick Comparison Chart
| # | Product | Our Rating | ||
|---|---|---|---|---|
| 1 |  |
Liquid Rubber RV Roof Coating | ★★★★★ | Check Price |
| 2 |  |
Henry HE587372 Roof Coating | ★★★★★ | Check Price |
| 3 |  |
Henry HE587046 Roof Coating | ★★★★★ | Check Price |
| 4 |  |
Gardner-Gibson 6245-GA Roof Coating | ★★★★☆ | Check Price |
| 5 |  |
280DC White Elastomeric Roof Coating | ★★★★☆ | Check Price |
| 6 |  |
PM Home-Sil 100% Silicone Roof Coating | ★★★★☆ | Check Price |
| 7 |  |
Gaco Roof 100% Silicone Roof Coating | ★★★★☆ | Check Price |
| 8 |  |
Jetcoat Cool King Elastomeric Roof Coating | ★★★★☆ | Check Price |
| 9 |  |
Rust-Oleum 750 Elastomeric Roof Coating | ★★★★☆ | Check Price |
| 10 |  |
Gardner Sta-Kool Elastomeric Roof Coating | ★★★★☆ | Check Price |
What the Ratings Reflect
Reflectance percentage, waterproofing ability, and coverage per gallon determined the rankings. The Henry HE587372 reflects 91% of solar heat energy, while Liquid Rubber’s zero-VOC formula topped the list for its compatibility with EPDM, TPO, and fiberglass surfaces.
Standard elastomerics struggle with ponding water, so check the silicone-based options further down if flat-roof drainage is a concern. Application method matters too, since some coatings only work with a roller while others accept a sprayer.
1. Liquid Rubber RV Roof Coating
Liquid Rubber RV Roof Coating
Professional-grade elastomeric coating that creates a flexible waterproof membrane on EPDM, TPO, fiberglass, and aluminum roofs. Water-based formula with zero VOCs and 10-year protection.
Pros
- Works on EPDM, TPO, and fiberglass
- Water-based with no harmful fumes
- Creates flexible waterproof membrane
- Apply with brush, roller, or sprayer
- Safe for indoor and outdoor use
Cons
- Requires 2 to 3 heavy coats
- Cannot apply within 24 hours of rain
This solar reflective paint is great roofing material that works on RV roofs, metal roofs, flat roofs, mobile homes, campers, wood, metal, concrete, and other surfaces. It is easy to apply with either a brush, roller, or high-quality paint sprayer.
The paint is completely environmentally friendly with a water-based formula, no harmful odors, and safe for both humans and animals. It can be used both indoors and outdoors without any specific apparatus.
The maximum coverage is around 100 sq ft per gallon per coat. Ensure a minimum of 2 to 3 heavy coats, and do not apply in wet conditions or within 24 hours of rain.
Apply on a clean, dry surface with flaky paint and coatings removed. Each coat will dry within 24 to 48 hours.
2. Henry HE587372 Roof Coating
Henry HE587372 Roof Coating
A 5-gallon white elastomeric coating from Henry that reflects up to 91% of solar heat energy. Designed for large projects with strong UV and infrared ray protection.
Pros
- Reflects 91% of solar heat energy
- Blocks both UV and infrared rays
- Large 5-gallon container included
- Keeps interior temperatures comfortable
Cons
- Heavy 58 lb container to handle
- Brush or roller application only
This high performance solar reflective paint is non-toxic and environmentally friendly. Once applied, the coating reflects the maximum amount of UV rays and infrared rays, keeping moisture out and walls in good condition.
The product comes in a 5-gallon package, which is more than enough for most homes. It can release 91% of the sun’s heat energy, making it one of the most effective coatings for keeping rooms cool during extreme summer heat.
Like any other sun reflective paint, it is relatively easy to apply with a solid brush or roller.
3. Henry HE587046 Roof Coating
Henry HE587046 Roof Coating
Henry 587 gallon-sized white roof coating with microfiber-reinforced waterproofing. Reflects UV and infrared rays while providing a durable moisture barrier for exterior walls and rooftops.
Pros
- Microfiber reinforced waterproofing
- Reflects UV and infrared rays
- Dries in 6 to 8 hours per coat
- Smooth elegant finish
Cons
- Smaller gallon-sized container
- Requires two full coats minimum
The Henry solar reflective paint reflects UV and infrared rays effectively, preventing rooms from heating up during summer. Its waterproofing strength is reinforced with microfibers, so if you apply it to exterior walls, no water will penetrate even during heavy rains.
Applying the coating is straightforward. Add 20% water to the bucket and stir carefully, then clean up the surface before use.
The first layer can be applied with a brush or roller, and after 6 to 8 hours of drying, apply the second coating. Once 12 hours have passed, the roof should be completely dry and ready to face all weather conditions.
4. Gardner-Gibson 6245-GA Roof Coating
Gardner-Gibson 6245-GA Roof Coating
A 4.75-gallon silver-finish roof coating from Gardner-Gibson that effectively reflects UV rays and keeps interiors cool. Compatible with brush, roller, or sprayer application.
Pros
- Large 4.75-gallon container
- Attractive silver reflective finish
- Works with brush, roller, or sprayer
- Eco-friendly and safe to apply
Cons
- Heavier at 17 lbs per container
- May need multiple coats on dark roofs
This solar reflective paint is eco-friendly and safe for use on various types of roofs. The package contains 4.75 gallons, making it plentiful enough for more than one coating if needed.
It can be applied with a good quality brush, roller, or sprayer tip.
Once you apply the finishing coat, it leaves an appealing silver coating that reflects UV rays effectively. The coating keeps rooms cool even during extreme heat, and it works well on different surfaces for both residential and mobile home roofing projects.
5. 280DC White Elastomeric Roof Coating
280DC White Elastomeric Roof Coating
An elastomeric roof coating that creates a highly reflective barrier at about 88% solar reflectance. Achieves one of the highest SRI values in its class while keeping roofs up to 15 to 20 degrees cooler.
Pros
- 88% solar reflective barrier
- Cools roof by 15 to 20 degrees
- Nontoxic and eco-friendly formula
- Works on rooftops and water tanks
Cons
- Must apply in dry conditions only
- Limited product data available
This elastomeric coating hits 88% solar reflectance, which places it near the top of the SRI scale for residential roof products. Independent testing shows it lowers roof surface temperatures by 15 to 20 degrees Celsius compared to uncoated surfaces, and that reduction translates directly into lower cooling loads during summer months.
It is extremely easy to apply and reflects a high percentage of both solar infrared and UV rays. The coating also protects your roof from deterioration and can reduce interior temperatures in residential and commercial buildings.
Remember to apply it in ideal temperature conditions when the surface is completely dry.
6. PM Home-Sil 100% Silicone Roof Coating
PM Home-Sil 100% Silicone Roof Coating
A 100% silicone roof coating with single-coat application that resists ponding water and reflects UV rays. Backed by a 20-year warranty for lasting protection.
Pros
- Only one coat needed for full coverage
- Resists permanent ponding water
- UV reflective to reduce heat gain
- 20-year manufacturer warranty
- No primer required on most surfaces
Cons
- Heavy 48 lb container
- Coverage varies by surface type
This coating can easily be used for most general maintenance work and is instantly ready to use. With its 100% silicone base, only one coating is needed because of its high durability.
The product is nontoxic with very low odor, making it safe in almost all environments.
Once fully dried, it offers perfect waterproof protection from all sorts of weather conditions. The coating works on flat and pitched roofs, gutters, concrete, fiberglass, felt, and metal.
Before applying, make sure the surface is completely dirt-free and dry. It is advised not to apply at temperatures below 10C, and when done properly this paint can last up to 20 years.
7. Gaco Roof 100% Silicone Roof Coating
Gaco Roof 100% Silicone Roof Coating
A 100% silicone coating from Gaco Western that outperforms acrylics and urethane. Remains permanently flexible under ponding water and adheres to most surfaces without primer.
Pros
- Permanently flexible under water
- Adheres without primer on most surfaces
- Reflects 90% of sun rays
- Resists algae and mildew growth
Cons
- Available in medium blue only
- Cannot walk on coated surface
The 100% silicone base provides waterproof protection that can withstand all sorts of weather for a long period. Its coating is strong against algae and mildew, and it is resistant to fungicide, meaning it will not let your roofs leak.
Capable of reflecting 90% of sun rays, it keeps your home cool during terrible summer heat. The product is great for mobile homes and flat or metal roofs.
Allow 24 hours between coatings, and apply 2 to 3 coats at the rate of 80 sq ft per gallon. It is best not to apply the coating when temperatures are below freezing, above 120F, or if rain is expected within the next 2 hours.
8. Jetcoat Cool King Elastomeric Roof Coating
Jetcoat Cool King Elastomeric Roof Coating
A waterproof elastomeric acrylic sealant from Jetcoat with 5-year protection. Reflects sun rays and forms a rubber-like cooling membrane that prevents leaks on multiple surface types.
Pros
- 5-year guaranteed protection
- Covers 50 to 70 sq ft per gallon
- Dries to touch in 2 to 3 hours
- Works on EPDM, bitumen, and concrete
Cons
- Not for gravel or shingled roofs
- Minimum 60F application temperature
Jetcoat Cool King reflective acrylic roof coating is guaranteed to last for at least 5 years and can withstand extreme weather conditions. It can be applied to bitumen, asphalt, mobile homes, RVs, wood, and concrete surfaces, though it is not recommended for gravel, dead level, or shingled rooftops.
Around one gallon covers 50 to 70 square feet per coat, and we recommend applying two coats for ideal coverage. The first layer dries to the touch within 2 to 3 hours, with a 6 to 8 hour wait before the second layer.
After application is complete, wait 4 weeks before scrubbing the roof with a proper roof cleaner and rinsing.
9. Rust-Oleum 750 Elastomeric Roof Coating
Rust-Oleum is one of the most recognized names in protective coatings, and their 750 series elastomeric roof coating delivers solid performance for homeowners looking to lower roof temperatures. With 87% initial reflectivity and the ability to hold 77% even after years of weathering, this is a coating that keeps working long after the first season.
One standout feature is rain resistance in just 4 hours, which is significantly faster than many competing products that require a full 24-hour dry window. The 5-gallon container gives you enough material for a standard residential roof, and the white finish creates a clean look while bouncing solar energy away from the surface below.
Rust-Oleum 750 Elastomeric Roof Coating
A 5-gallon white elastomeric coating from Rust-Oleum with 87% initial reflectivity and rain resistance in just 4 hours. Maintains 77% reflectivity even after weathering.
Pros
- 87% initial solar reflectivity
- Rain resistant in only 4 hours
- Maintains 77% reflectivity after weathering
- Trusted Rust-Oleum brand quality
Cons
- Heavy 52 lb container to manage
- White color only option available
10. Gardner Sta-Kool Elastomeric Roof Coating
Gardner has been manufacturing roofing and waterproofing products since 1945, and the Sta-Kool line is one of their flagship offerings. This 5-gallon elastomeric coating uses a silicone-enhanced acrylic latex formula that improves water resistance and adhesion compared to standard acrylic coatings, and it comes with a 10-year protection guarantee.
What sets the Sta-Kool apart from basic elastomerics is the 300x expansion and contraction rating. Roofs shift constantly with temperature swings, and coatings that cannot flex with that movement will crack and peel within a few years.
The 87% reflective white finish keeps roof surfaces noticeably cooler, reducing the load on your cooling system during peak summer months.
Gardner Sta-Kool Elastomeric Roof Coating
A silicone-enhanced acrylic latex roof coating from Gardner with 87% reflective finish and 10-year protection. Resists cracking and peeling while expanding up to 300x with roof movement.
Pros
- Silicone enhanced for water resistance
- Expands 300x with roof movement
- 87% reflective finish reduces heat
- Established brand since 1945
Cons
- Roller application recommended only
- Heavy 60 lb container
What is Solar Reflective Paint?
Solar reflective paints are a great way to keep your home protected as sun reflective paint does exactly what the name says it does: it creates a continuous, reliable membrane that deflects the sun’s rays and thus protects the substrates from solar heat gain.
The coatings also resist mold, mildew, and fungal growth in humid climates, which helps protect the roof membrane beneath.
Solar reflective paints provide protection and waterproofing for about 20 years.
At the same time, heat reflective paints reduce heat ingress and save energy.
Does Solar Reflective Paint Work?
Yes, solar reflective paints work and are very effective, especially if you apply the second layer that will serve as a highly durable coating for exterior walls as well as for felted roofs, roof tiles, concrete, wood, asphalt, and masonry.
The best solar reflective paint is a multi-functional product, which is also water and heat-reflective and is a perfect roofing material that protects your homes with a solar reflective coating that deflects the sun’s rays and, at the same time, reduces fungal growth in humid areas.
Final Thoughts
For most homeowners, the choice comes down to elastomeric versus silicone. Elastomeric coatings like the Liquid Rubber and Henry products work well on sloped roofs and are easier to apply, but they struggle with ponding water on flat surfaces.
The PM Home-Sil and Gaco silicone options handle standing water without breaking down and only need a single coat.
The Henry HE587372’s 91% heat reflection is the highest on this list, and you can feel the difference inside the house on hot days. If you are coating an RV or mobile home, the 280DC’s 88% reflectance with a 15 to 20 degree temperature drop makes a meaningful improvement in comfort during summer travel.
Always check your roof surface type before buying. Some coatings bond poorly to certain materials, and applying the wrong product means starting over sooner than expected.
If you are also looking to reduce heat through your windows, solar shades can complement a reflective roof coating by blocking solar gain on multiple sides of the house.
Apply on a clean, dry surface and watch the weather forecast carefully. Most of these products need at least 24 hours without rain after application, and skipping that step is the most common reason coatings fail prematurely.
