Silicone Roof Coating Pros and Cons? Here is the Answer

The roof repair industry frequently opts for silicone roof coatings, particularly for a variety of commercial buildings, including those with metal, modified bitumen, single-ply, EPDM, TPO, built-up roofs, concrete roof decks, and spray polyurethane foam. These coatings serve as a layer of protection, restoring and preserving the integrity of these surfaces.

When considering the best silicone roof coating, weighing the pros and cons is crucial. Below, we delve into silicone roof coatings’ significant advantages and disadvantages.

Is Silicone Roof Coating Worth It

The top-performing silicone roof coating excels under rain and standing water conditions, where its superior sealing properties prevent water penetration. Additionally, silicone coatings can reflect up to 90% of the sun’s UV rays, which keeps buildings cooler and significantly reduces energy costs.

silicone roof coating pros and cons

Silicone Roof Coating Pros and Cons


  1. Cost-Effective

Silicone roof coatings are approximately $6 less per square foot than replacing the entire roof structure. They offer a coating system that balances durability, quality, and waterproofing capabilities compared to other roof coatings.

  1. Durability

Due to their chemical properties, silicone roof coatings can endure harsher conditions than other types. The natural expansion and contraction of silicone with the roof prevents cracking, enhancing its lifespan and helping it withstand regular wear and tear.

  1. Environment-friendly

One of the most environmentally friendly coating solutions is silicone roof coating. Compared to most other moisture curing treatments, the benefit of silicone contains fewer solvents, and the high solids version is solvent-free.

  1. Lifespan

Roof coatings can extend a roof’s lifespan by more than ten years. Depending on their thickness, silicone coatings can provide 20 years of protection.

  1. Quick Application

Applying silicone roof coatings is quick and simple, it does not necessitate using heat-based techniques, which can be dangerous. In addition, because silicone roof coatings have a higher solids content than conventional coatings, they need fewer layers to function as an effective seal.


  1. Over Time, the Roof Will Become Less Reflective

A silicone roof coating’s pros and cons will naturally retain the dirt it gathers daily. The rain then serves as a cleanser for the surface. However, it implies that the material will gradually lose its reflectivity with time, allowing more solar heat to enter the structure. In addition, your heating and cooling expenses will increase as this choice matures since its support has an entropic curve.

  1. When It’s Time to Replace It, You Must Remove the Surface

How long does silicone roof coating last? Since silicone is difficult for other roofing materials to cling to, you must either completely remove an old silicone roof coating or choose a solution compatible with the already existing surface. When upgrading your roof, you must budget for a much higher installation cost if you choose option one. On the other hand, if the second choice is made accessible, you might have to pay extra if the product is a specialty one.

  1. When Utilizing This Surface, There Are More People Worried About Their Safety

Suppose you do have regular users of your roof. In that case, you should concentrate on raising their safety awareness to lower the possibility of accidents following the application of a silicone roof coating.

When the surface becomes somewhat damp, it becomes slicker than ordinary roofing systems. There should be increased awareness of this drawback if people working on skylights, roofs, or other units need access from the top.

  1. Stronger Warranties Are Offered for Other Types of Roofing

What is the value of silicone roof coating today? Most roofing solutions have a 25-year warranty to get the most out of your money. However, this warranty might be extended to 50 years or more if you choose a metal roof.

If you use a silicone roof coating instead, the product may provide you with a 10-year warranty (or even longer in certain cases). But, at the same time, some suppliers may only offer you five years of security. So, even if you qualify for tax deductions, you could discover that the upfront cost of this surface surpasses the range of advantages it might offer your building.

  1. An Incorrect Installation Might Harm Your Current Roof

When you need a silicone roof coating placed, you should only engage with licensed, bonded, and insured professionals. The business roof surface might end up protecting your building with more harm than good if the job is not done correctly.

A bonded contractor provides you with the finest alternative for a financial “out” that will enable you to overcome this disadvantage should it arise. To get the finest outcome, always look for the most respected businesses in your region specializing in this product.

Verdict on the Pros and Cons of a Silicone Roof Coating

There are many options for the silicone roof coating you may use for your roof. To determine what is required, you must consider the strengths and weaknesses of each structure. Although it costs more than most other options, a silicone roof coating gives you essential adaptability.

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RoofLast is an experienced author and roofing expert. With years of practical experience in the field authored several informative articles on various aspects of roofing, including installation, maintenance, and repair