Best flat roof sealants

Our top 3 picks

• 1

  

  

  Check Price

  Countryman Coatings 100% Silicone Roof Coating - Restore Your Roof in a Day - Seal Leaks, Cracks, Seams, Penetrations - Adheres to All Surfaces (4.75 Gallon, White)

  The Countryman Coatings 100 Silicone Roof Coating is a top-tier solution for restoring and protecting your roof. This coating can be applied to a wide range of surfaces, including metal, EPDM, and concrete, without the need for a primer, thanks to its superior adhesion properties. It stands out for its energy efficiency, reflecting 90% of UV rays to help reduce energy consumption by up to 20%, making it both cost-effective and environmentally friendly. Users appreciate its ease of application, noting its smooth, glass-like finish that enhances the roof's appearance. Ideal for RVs and aging roofs, this product not only seals leaks and cracks but also extends the life of your roof. Made in America, it promises quality and reliability, with many users recommending it for its practical benefits and performance.
• 2

  

  

  Check Price

  100% Silicone Roof Sealant - Self Leveling - Complete Waterproofing - Easy One Coat Application - Designed for Your RV, Camper, Trailer, Commercial Building… (5 Gallon, White)

  The Marlin Silicone Roof Sealant offers a robust, long-lasting solution for roof protection. Its 100% silicone composition ensures it withstands UV exposure and ponding water, providing a durable shield against leaks. This product is ideal for various applications, including RVs, campers, trailers, and commercial buildings, making it a versatile choice for different roof types. The single-coat application saves both time and money, setting it apart from competitors that require multiple layers. Users appreciate its thick consistency, which allows for easy application using brushes or rollers, and its bright white finish, which significantly reduces cooling costs by reflecting sunlight. With coverage of approximately 60 square feet per gallon, this self-leveling sealant is both efficient and effective, ensuring a smooth, protective finish. Overall, the Marlin Silicone Roof Sealant is a reliable choice for those seeking a straightforward, high-performance roofing solution.
• 3

  

  

  Check Price

  

  Check Price

  

  Check Price

  Liquid Rubber Waterproof Sealant - Multi-Surface Leak Repair Indoor and Outdoor Coating, Water-Based, Easy to Apply, Original Black, 1 Gallon

  The Liquid Rubber Waterproof Sealant is a versatile and robust solution for leak repairs, offering impressive flexibility and durability. With over 1000% elongation, this sealant is designed to withstand harsh environmental conditions, including UV exposure, ensuring a long-lasting protective finish. Its water-based formulation is environmentally friendly, containing no harmful solvents or odors, making it safe for indoor and outdoor applications. This product is ideal for a wide range of surfaces, from flat and metal roofs to planter boxes and foundations. Users have praised its thick application and excellent sealing capabilities, making it a reliable choice for preventing leaks. Whether you're sealing a dent in your roof or protecting your shed's subfloor, this sealant provides effective waterproofing with ease. Despite some concerns about price increases, the Liquid Rubber Waterproof Sealant remains a top choice for those seeking a dependable and eco-friendly solution for various sealing needs.