can you put elastomeric roof coating over shingles

Can You Put Elastomeric Roof Coating Over Shingles?

Elastomeric roof coatings have gained popularity in recent years due to their ability to protect and extend the life of roofs. However, many homeowners wonder if they can apply elastomeric coatings over existing shingle roofs. In this blog post, we’ll explore can you put elastomeric roof coating over shingles and provide insights into the benefits and considerations of using elastomeric roof coatings over shingles.

What are Elastomeric Roof Coatings

Elastomeric roof coatings are typically made from acrylic or silicone and are designed to provide a seamless, waterproof barrier over the roof surface. They are known for their flexibility, durability, and ability to withstand harsh weather conditions.

Benefits of Elastomeric Roof Coatings

  • Waterproofing: Elastomeric coatings create a seamless membrane that prevents water penetration, protecting the underlying roof structure.
  • Reflectivity: Many elastomeric coatings have reflective properties, which can help reduce the heat absorbed by the roof and lower cooling costs.
  • Longevity: When properly applied, elastomeric coatings can extend the lifespan of a roof by protecting it from UV radiation, thermal cycling, and other damaging elements.
  • Ease of Application: Elastomeric coatings are relatively easy to apply and can often be rolled or sprayed onto the roof surface.

Can You Put Elastomeric Roof Coating Over Shingles?

The short answer is yes, elastomeric roof coatings can be applied over shingles in many cases. However, there are several factors to consider before proceeding with this application:

1. Condition of the Existing Shingles

Before applying elastomeric coating, assess the condition of the shingles. Ensure they are structurally sound, without significant damage or deterioration. If the shingles are severely damaged or nearing the end of their lifespan, it may be more beneficial to replace them before applying the coating.

2. Compatibility of Coating

Not all elastomeric roof coatings are suitable for application over shingles. Choose a coating specifically formulated for use on asphalt shingle roofs. These coatings are designed to adhere effectively to the surface and provide the necessary protection without compromising the integrity of the shingles.

3. Surface Preparation

Proper preparation of the shingle surface is essential for the coating to adhere correctly and provide long-lasting protection. Clean the roof surface thoroughly to remove dirt, debris, and any contaminants that could interfere with adhesion. Repair any damaged shingles or flashing, and ensure the surface is dry before applying the coating.

4. Application Method

Elastomeric roof coatings can be applied using various methods, including brushing, rolling, or spraying. Choose the method that is most suitable for your roof and follow the manufacturer’s instructions carefully. Apply the coating evenly, making sure to cover the entire surface of the shingles.

5. Additional Considerations

  • Check local building codes and regulations to ensure compliance with any requirements regarding roof coatings.
  • Consider the climate and weather conditions in your area. Elastomeric coatings perform best in moderate to warm climates with low humidity.
  • Consult with a professional roofing contractor if you’re unsure about the suitability of elastomeric coating for your shingle roof or if you need assistance with the application process.

Read More: Does HVAC Include Water Heater?


While it is possible to apply elastomeric roof coating over shingles, it’s essential to evaluate the condition of the shingles, choose a compatible coating, properly prepare the surface, and follow the manufacturer’s instructions for application. When done correctly, elastomeric coating can provide added protection and prolong the life of your shingle roof.

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