The Best Elastomeric Roof Paint – A Complete Guide

When it comes to maintaining the roof of your home or business, one of the best ways to protect it from the elements is by using elastomeric roof paint. Elastomeric roof coatings are specially formulated to create a thick, durable layer over your roof that offers superior protection against weather, UV rays, and wear over time. We will walk you through the benefits of elastomeric roof paint, the best options available, how to apply it, and key factors to consider when choosing the right one for your needs.

What is Elastomeric Roof Paint?

Elastomeric roof paint is a high-performance coating made from a blend of elastomers, which are materials that allow the paint to stretch and return to its original shape. This unique feature makes elastomeric coatings ideal for roofs, as they can expand and contract with temperature changes, weather conditions, and roof movement without cracking or peeling. Elastomeric coatings are typically applied as a thick, flexible layer over the existing roof surface and can be used on various types of roofs, including flat, sloped, metal, and even concrete roofs.

Key Benefits of Elastomeric Roof Paint:

1. Waterproofing: Elastomeric roof paint creates a waterproof barrier, preventing water from leaking into your home and causing damage to the roof structure.
2. UV Protection: The coating protects the roof from harmful UV rays, which can degrade roofing materials over time, leading to cracking, fading, and other damage.
3. Energy Efficiency: Reflective elastomeric coatings help to reduce the heat absorbed by your roof, keeping the interior of your home cooler and lowering energy costs, especially during hot weather.
4. Durability: Elastomeric roof paint is highly resistant to cracking, peeling, and fading, providing long-lasting protection for your roof.
5. Flexibility: The ability of elastomeric coatings to expand and contract makes them ideal for roofs that experience frequent temperature fluctuations or structural movement.

The Best Elastomeric Roof Paints

Choosing the best elastomeric roof paint depends on various factors, such as the type of roof you have, your local climate, and your budget. Below, we’ve rounded up the top-rated elastomeric roof paints based on performance, durability, and customer satisfaction.

1. GacoRoof Silicone Roof Coating

Best for: Long-lasting waterproofing and UV protection
Finish: Gloss
Why it’s great: GacoRoof is one of the top choices for elastomeric roof coatings, thanks to its exceptional waterproofing properties. This silicone-based coating is designed to seal leaks and provide long-lasting protection against water damage. It also offers UV protection, making it ideal for roofs exposed to intense sunlight. GacoRoof’s high reflectivity helps to lower energy costs by keeping the roof cool, and it’s easy to apply with a roller or sprayer.

Pros:

• Excellent waterproofing capabilities.
• Superior UV resistance.
• High reflectivity for energy savings.
• Easy application with a roller or sprayer.
• Can be applied to various roof types.

Cons:

• More expensive than some other options.
• May require multiple coats for optimal coverage.

2. Karnak 88 Elastomeric Roof Coating

Best for: Budget-friendly, durable roof protection
Finish: Flat
Why it’s great: Karnak 88 is a high-quality elastomeric roof coating that provides superior durability at an affordable price. This water-based acrylic coating offers excellent protection against weather elements, including rain, UV rays, and extreme temperatures. It also provides a smooth, flat finish that helps to reduce water pooling on the roof. It is ideal for both residential and commercial applications and can be used on a variety of roof types, including flat and sloped roofs.

Pros:

• Cost-effective without sacrificing quality.
• Great for waterproofing and UV protection.
• Easy to apply with a brush or roller.
• Available in various colors for aesthetic purposes.

Cons:

• Requires proper surface preparation for best results.
• Can be thicker and harder to spread than some other coatings.

3. Henry 887 Tropi-Cool 100% Silicone White Roof Coating

Best for: Reflectivity and energy savings
Finish: Gloss
Why it’s great: Henry 887 Tropi-Cool is a top-tier elastomeric roof coating that provides excellent reflectivity and energy savings. This 100% silicone coating is designed to withstand the harshest weather conditions and offers superior protection against water, UV rays, and temperature fluctuations. It’s also highly reflective, which helps reduce energy consumption by keeping the building cooler. This makes it a great choice for commercial buildings or homes in warmer climates.

Pros:

• Exceptional reflectivity for energy savings.
• 100% silicone formulation for maximum durability.
• Excellent water and UV protection.
• Ideal for roofs in hot climates.

Cons:

• Higher price point.
• May not adhere well to all roof surfaces (requires proper preparation).

4. Sealoflex UltraClear Elastomeric Roof Coating

Best for: High-performance waterproofing
Finish: Clear (Glossy)
Why it’s great: Sealoflex UltraClear is a premium elastomeric roof coating designed for high-performance waterproofing. Its unique formulation allows it to create a strong, durable barrier against water and the elements, while also maintaining a glossy finish. Sealoflex is perfect for roofs that need a transparent finish without compromising on protection. It’s ideal for use on tile, metal, and concrete roofs.

Pros:

• Clear finish preserves the natural look of roofing materials.
• Superior waterproofing and weather protection.
• UV resistant, preventing degradation from sun exposure.
• Can be used on a variety of roof surfaces.

Cons:

• Higher cost compared to other coatings.
• Requires a well-prepared surface for best results.

5. Rust-Oleum Elastomeric Roof Coating

Best for: Easy-to-apply and affordable roof protection
Finish: Flat or Satin
Why it’s great: Rust-Oleum is a trusted brand that offers an affordable elastomeric roof coating that provides excellent protection for both residential and commercial roofs. This water-based acrylic elastomeric coating provides a durable finish that resists cracking, peeling, and fading. It’s easy to apply with a roller or sprayer and is suitable for use on a variety of roof types, including asphalt, tar, and modified bitumen.

Pros:

• Affordable and high-quality.
• Easy application and great coverage.
• Long-lasting protection against weather and water.
• Resists cracking, peeling, and fading.

Cons:

• Not as UV-resistant as silicone-based coatings.
• May require more frequent maintenance compared to other coatings.

6. Cool Roofing Solutions 100% Silicone Roof Coating

Best for: Reflective coating and extreme weather protection
Finish: Gloss
Why it’s great: Cool Roofing Solutions provides a 100% silicone elastomeric roof coating that is perfect for hot climates and extreme weather conditions. This coating offers excellent reflectivity, which helps reduce heat absorption, making your home or building cooler in the summer. The silicone-based formula also provides superior waterproofing and UV protection, making it ideal for roofs that experience intense sun and heavy rainfall.

Pros:

• High reflectivity for energy efficiency.
• 100% silicone formulation for maximum protection.
• Excellent for extreme weather conditions.
• UV-resistant, prevents fading and damage.

Cons:

• Requires proper surface preparation.
• Higher price compared to other coatings.

How to Apply Elastomeric Roof Paint: Step-by-Step Guide

Applying elastomeric roof coating is relatively simple, but proper preparation and technique are crucial for achieving the best results. Follow these steps for a professional-looking finish.

1. Prepare the Roof Surface

• Clean the Roof: Start by cleaning the roof thoroughly to remove dirt, debris, and any old, peeling paint. A power washer or a scrub brush with a mild detergent should do the job. Make sure the surface is dry before you begin applying the coating.
• Repair Damaged Areas: Check for any cracks, holes, or other damage to the roof. Use a roofing repair sealant to fix these areas before painting. Elastomeric coatings work best on smooth, well-maintained surfaces.

2. Choose the Right Weather Conditions

Elastomeric coatings should be applied in dry, mild weather, with temperatures between 50°F (10°C) and 90°F (32°C). Avoid applying the coating during heavy rain or extreme heat.

3. Apply Primer (if necessary)

Some elastomeric roof coatings may require a primer, especially if the surface is very porous or has not been previously painted. Follow the manufacturer’s recommendations regarding whether to apply a primer.

4. Apply the Elastomeric Coating

Use a roller, sprayer, or brush to apply the elastomeric roof paint evenly across the surface. Start at the highest point of the roof and work your way down to avoid stepping on wet paint. Apply the coating in thin layers and allow each coat to dry before applying another one.

5. Allow the Paint to Dry

Allow the paint to fully dry before exposing it to rain or heavy foot traffic. Drying times will vary depending on the product, but generally, elastomeric coatings dry within a few hours to a day.

6. Inspect and Touch Up

Once the coating has dried, inspect the roof for any missed spots or uneven coverage. Touch up as necessary to ensure complete coverage and protection.

Conclusion

Elastomeric roof paint is an excellent solution for homeowners and businesses looking to extend the life of their roofs while improving energy efficiency and weather resistance. The best elastomeric roof paints, such as GacoRoof Silicone Roof Coating, Karnak 88, and Henry 887 Tropi-Cool, provide excellent waterproofing, UV protection, and reflectivity, ensuring your roof is protected for years to come. By selecting the right product and following proper application techniques, you can enhance the durability and appearance of your roof while reducing energy costs.