Silicone roof coating is a popular choice due to its durability, waterproofing abilities, and UV resistance. It is a liquid-applied membrane that creates a seamless, reflective surface. This coating is often applied over existing roofs to extend their life and improve energy efficiency. The cost per square foot usually ranges from $0.75 to $1.50, depending on factors like roof size, condition, location, and any necessary prep work such as cleaning or repairing the surface. Silicone coatings are flexible and can handle ponding water better than many other coatings, which is why they’re often favored for flat or low-slope roofs. The price also includes labor and materials, so a smooth, defect-free surface and proper application are key to making sure the coating lasts.
To check if your roof is a good candidate for silicone coating, start with a visual inspection. Look for dirt, debris, or existing coatings peeling off since proper adhesion is critical. You can gently touch the surface to feel for any softness or damage that might need repair before applying silicone. If your roof has leaks or structural damage, those should be repaired first. While a DIY application is possible for small areas, larger or more complex roofs should be handled by a professional to ensure warranty compliance and proper thickness. When you call a contractor, ask “What is your warranty on the silicone coating application?” and “How do you prepare the roof surface to ensure the coating adheres properly?” These questions help ensure you get a thorough job that will protect your roof for years.