Silicone Roof Coating: Application, Advantages, & Disadvantages

Do you remember when you last fixed the roof leak? It wasn’t a fun job. Not only did you probably have to scramble up on top of your house to patch things up, but there was always the fear that you might not get it right. And the leak probably came back. Well, what if we told you that there is a product that could help you avoid all the hassle?

Silicone roof coating is a sealant you can apply to your roof to prevent leaks and protect your home from the elements. With silicone roof coating, you don’t re-roof; you recover!

What is Silicone Roof Coating?

Have you ever wondered if a roof protective layer is worth the investment? Silicone roof coatings provide a seamless, monolithic membrane. It is seamless and waterproof. It has high reflectivity, which helps keep your home cooler in the summer. And silicone roof coatings can last up to 25 years!

How to Apply Silicone Roof Coating

The installation process begins with an infrared inspection of the entire roof. This helps to detect the saturated areas of insulation. It is essential to replace or remove those areas before application. Once done, the steps below follow:

  • The roof is cleaned with low pressure and special cleaners.
  • All the seams, flashings, drains, and penetrations are sealed with a silicone-based sealant.
  • A primer is applied to the roof. It helps the silicone roof coating to adhere better.
  • The silicone roof coating is applied in two coats. A roller or a sprayer is used for the application.

Benefits of Using Silicone Roof Coating:

Most roofs start showing their age after around 15 years. Whether it’s the curling shingles, faded color, or missing granules, your roof tells you it’s seen better days. You could replace the roof, but a new roof can be costly—anywhere from $15,000 to $30,000. Silicone roof coating is a much more budget-friendly option, costing around $5 per square foot.

In addition to being more affordable than a new roof, a silicone roof coating also helps extend the life of your current roof. It is considered residential roof maintenance must-have. It creates a protective layer over your roof and helps to prevent water and other elements from seeping in and causing damage.

Silicone roof coating is also highly reflective, which can help keep your home cooler in the summer months. So, if you’ve been shelling out a fortune on air conditioning bills, a silicone roof coating may save you about 35% on your energy costs.

Some other benefits include:

  • Short project duration
  • Comes with warranty
  • Offers UV protection

Cons of Applying Silicone Roof Coating

Although considered an effective roof protective layer, silicone coatings do have a few disadvantages.

One significant difficulty homeowners face is meeting the eligibility criteria. Your roof must be less than 25% saturated, and the seams must be healthy. If there are any leaks, silicone roof coating won’t be effective in solving the problem. So, instead of waiting for your roof to become a pool, consider coating it!

Besides eligibility, the smell is another disadvantage. Applying silicone roof coatings creates a powerful smell that can be difficult to bear, especially if you’re using it yourself. So, take no risks and work with a professional residential roof maintenance company.


On The Mark Roofing, serving Nashville, TN, offers roofing inspections that can help identify areas of your roof that may require silicone roof coating.

Our team of highly trained professionals can apply the silicone roof coating quickly and efficiently, so schedule an inspection now!

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