Best Asphalt Roof Coating Solutions for Long-Lasting Protection
Choosing the right asphalt roof coating can extend the life of your roof, improve reflectivity, and resist weathering. The following selections focus on water resistance, durability, ease of application, and suitability for various substrates like metal and wood. Use this guide to compare top options and pick a coating that fits your climate and roof type.
| Product | Brand | Key Benefit |
|---|---|---|
| Black Jack 6190 Roof and Foundation | BLACK JACK | Waterproofing and sealing for roofs and foundations |
| Rust-Oleum Elastomeric Roof Coating | Rust-Oleum | High reflectivity and quick rain resistance |
| GARDNER-GIBSON FB Roof Coating | Gardner-Gibson | User-friendly and durable |
| Rust-Oleum Fibered Black Roof Coating | Rust-Oleum | Premium water and weather protection for built-up roofs |
| Gardner Rubberized SBS Roof Coating | Gardner-Gibson | Rubberized, flexible seal for waterproofing |
When selecting a coating, consider reflectivity to reduce cooling costs, temperature tolerance for your region, and substrate compatibility. The products below represent a mix of fibered, elastomeric, and SBS systems designed to address common roof issues such as leaks, UV damage, and aging membranes.
Black Jack 6190 Roof and Foundation Coating
The Black Jack 6190 is a non-fibered asphalt emulsion coating that goes on as an odorless, water-based solution. It provides waterproofing and sealing for roofing surfaces as well as foundations, making it a versatile choice for both above-ground and subterranean exposure. Its solvent-free formula minimizes odor during application, which can improve DIY usability. The coating is suitable for weatherproofing and resurfacing, and it can be used to protect underground wood footings and metal surfaces as well. This broad applicability can simplify projects that require cohesive protection across different structural elements.
Rust-Oleum Elastomeric Roof Coating 4.75 Gal
Rust-Oleum’s Elastomeric Roof Coating offers high reflectivity with 84% initial reflectivity and 74% reflectivity after weathering. It’s designed to reflect sunlight and reduce heat transfer, potentially lowering cooling loads in hot climates. The coating is formulated to be weather-resistant and can endure moisture exposure, with a quick rain-resistance claim of six hours. This makes it a practical option for roofs requiring rapid return to service after application. It’s suitable for various roof types and can help revitalize aging membranes while maintaining flexibility to adapt to substrate movements.
GARDNER-GIBSON FB Roof Coating
Gardner-Gibson’s 6125-9-34 FB Roof Coating is promoted as easy to use and highly durable, with manufacturing in the United States. The user-friendly nature suggests straightforward application, whether you’re tackling a DIY roof refresh or a larger coating job. The emphasis on durability indicates a solid option for protecting shingles and built-up roofs against weathering, while the domestic manufacturing mention can appeal to buyers prioritizing domestic supply chains. This product can pair well with other protective systems to extend roof life and minimize maintenance needs.
Rust-Oleum 350 Fibered Black Roof Coating (5 gal)
This 350 Fibered Black Roof Coating is designed as a premium water proofer and weather proofer for smooth asphalt built-up and modified bitumen roofing. It’s suited for revitalizing older roofs and features low-temperature application, enabling projects in cooler climates or during shoulder seasons. The fibered formulation typically enhances durability, offering a resilient, protective layer that resists cracking and provides a longer service life for aging membranes. It’s positioned as a practical upgrade for renovators looking to restore efficiency and waterproofing to existing roofs.
Gardner Rubberized SBS Roof Coating
Gardner-Gibson’s 4.75 Gallon Rubberized SBS Roof Coating blends asphalt with rubber and reinforcing fibers to form a strong, flexible, waterproof seal. The SBS (styrene-butadiene-styrene) component contributes to elasticity, allowing the coating to move with substrate expansion and contraction. This flexibility helps prevent cracking and leaks on roofs with shifting membranes or severe weather exposure. It’s a practical option for homeowners seeking a durable, weatherproof seal that maintains integrity under temperature fluctuations.
Rust-Oleum 350 Fibered Black Roof Coating (0.5 L)
This Rust-Oleum option emphasizes premium waterproofing for smooth built-up roofs and modified bitumen systems, with a focus on revitalizing older roofs through fibered technology. The low-temperature application capability expands usability for fall and winter projects. The coating’s fibered formulation improves adhesion and resistance to cracking, supporting longer service life and reduced maintenance in challenging weather conditions.
Gardner Aluma-Kote Gloss Silver
Gardner Aluma-Kote Gloss Silver is a fibered aluminum roof coating designed to reflect solar radiation. Its high reflectivity (per ASTM D2824) and aluminum content help reduce heat absorption, contributing to lower cooling costs in sunny climates. The gloss finish can enhance the appearance of metal roofs while providing a protective, watertight seal. The product is positioned as suitable for metal roofs and surfaces susceptible to rust, with a clear emphasis on reflectivity and durability.
Buying Guide: Key Considerations for Asphalt Roof Coatings
Selecting the right asphalt roof coating involves balancing performance with application needs. Here are essential factors to consider:
- Substrate compatibility: Ensure the coating bonds well with your roof type (asphalt, built-up, metal, or wood). Some products are optimized for metal surfaces, while others are better for asphalt membranes.
- Reflectivity and cooling: Light-colored or reflective coatings can reduce heat gain and energy costs in hot climates. Consider the climate and whether reflectivity is a priority.
- Elasticity and flexibility: Roof membranes expand and contract with temperature. Elastomeric and SBS-based coatings offer greater elasticity to minimize cracking.
- Application temperature: Some coatings are rated for low-temperature application, useful in cooler regions or during shoulder seasons.
- Durability and UV resistance: Look for formulations that resist UV degradation and provide long-term waterproofing without frequent re-coating.
- VOC and odor: Water-based, odorless coatings reduce indoor air concerns during application and cleanup.
- Drying and cure times: Check cure times to determine how quickly the roof can be returned to service, especially in wet climates.
- Coverage and maintenance: Consider the coverage rate per gallon and whether multiple coats are recommended for optimal protection.
- Warranty and compliance: Review product warranties and whether the coating meets local building codes or environmental standards.
From an installation perspective, fibered coatings typically offer enhanced durability, while non-fibered or elastomeric options can provide superior elasticity and weatherproofing. For metal roofs, aluminum-based coatings can offer corrosion resistance and high reflectivity, whereas SBS-based products excel in sealing and staying flexible on aging membranes. In selecting the right product, align your climate, roof type, and maintenance goals with the coating’s formulation and performance claims.