What is the Best Roof Coating for Shingles?
Asphalt shingles are the most common roofing material in the U.S., valued for their affordability and ease of installation. However, they can wear down over time due to UV exposure, moisture, and temperature changes, leading to cracks, granule loss, and leaks. At Inex Roofing, we recommend applying a quality roof coating to extend the life of your shingles by 5–10 years or more. But what is the best roof coating for shingles? Based on expert reviews and performance data, acrylic elastomeric coatings top the list for their durability, flexibility, and ability to penetrate and seal shingles effectively.
These coatings form a protective barrier that rejuvenates old shingles, prevents fading, and improves water resistance. In this in-depth article, we’ll cover the benefits of coated shingles, the various types available, why acrylic is often the best choice, application guidelines, and maintenance advice. Whether your roof is showing signs of age or you want proactive protection, this guide will help you make an informed decision.
Benefits of Coating Asphalt Shingles
Coating your shingles isn’t just about aesthetics—it’s a smart investment. It restores the shingles’ flexibility, reducing the risk of cracking in cold weather. Reflective coatings can also lower attic temperatures, cutting energy bills by up to 20%. Moreover, it seals minor imperfections, preventing moss growth and water damage. Homeowners often see a return on investment through avoided replacements, which can cost $5,000–$10,000 for an average home.
Types of Roof Coatings for Shingles
Not all coatings are compatible with asphalt shingles; choosing the wrong one can lead to blistering or a shorter lifespan. Key options include:
- Acrylic Coatings: Water-based, breathable, and available in colors. They provide excellent fade resistance and durability.
- Silicone Coatings: Highly waterproof and UV-resistant, ideal for wet climates. However, they may not penetrate as deeply as acrylics.
- Asphalt-Based Coatings: Traditional and inexpensive, but less flexible than modern alternatives.
- Elastomeric Coatings: Rubber-like for superior stretch, often combined with acrylic or silicone.
- Clear Sealers: Like ArmorRoof Clear, these preserve the shingles’ appearance while adding protection.
Brands like Armor Garage offer one-part sealers that penetrate deeply. For premium options, Henry 887 Tropi-Cool Silicone or Dicor EPDM are highly rated.
Why Acrylic Elastomeric is the Best for Shingles
Acrylic elastomeric coatings are the best for most shingle roofs because they bond well to asphalt, allowing the shingles to “breathe” while providing a flexible seal against the elements. They resist cracking and offer superior UV protection compared to asphalt-based options. In comparison, silicones are remarkable for water resistance but can be overkill for sloped shingle roofs, while rubber outperforms plastic in longevity.
For restoration, products like Shingle Shield use a two-part acrylic formula to bond to damaged surfaces. Behr roof paint or epoxy extends life by a few years. Avoid heavy coatings that could weigh down shingles.
How to Apply Roof Coating to Shingles
- Preparation: Clean the roof of debris and moss. Repair any damage.
- Priming: Not always needed, but a base coat enhances adhesion.
- Application: Use a sprayer or roller for even coverage. Apply in thin layers.
- Drying: Wait 4-6 hours between coats; full cure in 24 hours.
Hire professionals like Inex Roofing for safety and quality.
Maintenance Tips
Inspect annually, clean gently, and touch up as needed. Coated shingles can last 25-30 years with care.
In conclusion, acrylic elastomeric coatings offer the best balance for shingle protection. Reach out to Inex Roofing for expert application.
FAQs
- How often should I coat my shingle roof? Every 5-10 years, depending on wear.
- Can coating fix curled shingles? It can seal them but not fully repair severe damage.
- Is silicone safe for shingles? Yes, but acrylic is often better for penetration.
- What’s the best color for reflective coatings? White or light colors for energy savings.
- Does coating increase home value? Yes, by improving curb appeal and longevity.
- Can I walk on coated shingles? After complete cure, minimize foot traffic.
- Are there eco-friendly options? Many acrylics are low-VOC and water-based.
- What’s the difference between sealer and coating? Sealers penetrate; coatings form a top layer.
