If a new coating won't fix the problem, replacing a mobile home roof costs $1,500 to $5,000 and may be the only solution. Sherwin-Williams 1050 Quick Dry Siliconized Acrylic Latex CaulkBest RV Roof Coatings. S. Silicone Roofing Systems. 14. Henry 884 has a lifetime warranty, is UV resistant, ponding water resistant and won't crack or chalk, is mold and mildew resistant and best of all has a. Reflects 87 percent of UV rays. The Benefits of Conklin’s Acrylic Elastomeric Roof Coatings . 2. Acrylic coatings have been a key component of cool roof systems for many years now. These products are often used in high-moisture. Silicone roof coating is water-repellent or waterproof. Approximate Coverage Per Gallon (sq. Lowers cooling costs. Some TPO roofs can last up to 30 years, offering the building owner a great solution to a new. An acrylic roof coating is applied to the roof as a liquid and then hardens as it dries. The sealant is designed to be used on fiberglass, metal, and rubber roofs. 581 0. Silicone Roof Coatings: Silicones are moisture-cure chemistries that can be both solvent-based as well as High Solids (HS) 100% solids. Siliconized for Enhanced Water Resistance and Adhesion. Approximate Coverage Per Gallon (sq. Come See Us: 4115 Capitol Drive, New Albany, IN 47150. High Solids Silicone Vs. The nature of a silicone roof coating is that it will hold the dirt that it picks up each day. Dry Film Thickness (DFT) is an important factor to consider when selecting a silicone-based roof coating. Recoat Cure Time and Temperature: 2 hours @ 100°F. 00 and $4. 54. BLACK JACK. Since its quite sustainable, you don’t have to worry about replacing. Acrylic roof mastic, typically rolled on to a roof surface in two coats, used on many types of roof surfaces. Silicone vs. Contractors: We Want to Partner with You! We offer Acrylic and Silicone coatings, as well as a full line of primers, ancillary products and other roofing supplies. Silicone roof coating is ideal for protecting surfaces due to its waterproofing abilities. Typically white in color, these coatings have the same viscosity as paint, which makes it brushable, rollable, or sprayable. Silicone roof coatings are a great choice if you’re looking for a long-lasting roof coating. And when it comes to choosing the best one, the answer will often be a silicone roof coating. Solvent-Free Silicone Roof Coating System Re-cover and renew a weathered low slope or flat roof with the GacoFlex S42 Silicone Coating System. Silicone-modified formula for increased durability and adhesion. Acrylics can offer a quick fix on a sloped roof, but silicone is far superior when comparing longevity, durability, and ease of application. foot commercial roof, it will usually cost between $2. for pricing and availability. Surprisingly, it comes with a lifetime warranty, which makes it one of the best RV sealants. 75 dry mils per gallon for a square area. Silicone Roof Coatings Vs Acrylic Roof Coatings, which commercial cool roof coating is better? It’s a common question that we get all the time. Both coatings work great. Acrylic Coating Pros & Cons. Acrylic is great on roofing such as tar because it will stay white and reflective. These prices generally increase. In terms of cost, acrylic roof coatings are normally less expensive than silicone coatings. Silicone is also less likely to peel and crack because it has a thicker consistency. Products: EnergyGuard Silicone Coating, EnergyMax Silicone Coating. You have to be very careful when choosing an acrylic coating, though. As a contractor, you're constantly on the lookout for ways to get the job done quickly while continuing to provide a high level of quality to customers. The repairs are usually less than 25% of the roof, keeping the rest of the roof untouched. Miami-Dade County approved. Mule-Hide 100% Silicone Roof Coating can be applied over new spray applied polyurethane foam, EPDM, TPO, aged PVC, aged acrylic coatings, concrete, asphalt built-up roofs, granulated modified bitumen roofs and metal roofs. Our coatings and restoration systems are rated and tested by FM Global, UL, Miami-Dade, Florida Building Code and the Roofing Coating Manufacturers Association (RCMA). We offer warranties ranging from 5 to 20 years on our silicone roof coating systems. Acrylic vs. A roof coating is only as good as its durability, and Titan's sprayers are designed and proven to help you produce the toughest, longest-lasting acrylic and silicone coatings in the industry. Acrylic and silicone roof coatings are generally more popular with these substrates. 75-Gallon White Elastomeric Reflective Roof Coating (7-year Limited Warranty) Model # AP-2415. Prepare the surface. From industrial to commercial buildings, a roof coating can be detrimental to the roof’s longevity. Contractors: We Want to Partner with You! We offer Acrylic and Silicone coatings, as well as a full line of primers, ancillary products and other roofing supplies. Henry ® 687 100% Acrylic Enviro-White™ Extreme Elastomeric Roof Coating is a premium, high solids white reflective roof coating. A roof that was coated with an acrylic coating can be re-coated with either acrylic or silicone, but a roof that was coated with silicone can only be recoated with silicone. Acrylic Roof Coatings. Now with Dirt Pick-Up Resistance (DPR) Technology, it will keep your roof whiter and brighter longer. Ames Coatings contain no harmful silicone chemicals and are NON-FLAMMABLE! If you have been in the market for an elastomeric and waterproof coating, then you know there are plenty of. The sealant is designed to be used on fiberglass, metal, and rubber roofs. However, silicone creates the strength it needs to handle stress from movement and prevent cracking. Many roofing contractors lean towards using silicone roof coatings, but acrylic does have its pros. Pro-Grade ®. 60 and $1 per square foot. Once dried, they are also fully adhered and entirely seamless. Mix all Polyglass products, including the elastomeric roof coating, thoroughly for proper application. Silicone roof coatings are another type of elastomeric coating. Kynar polyvinylidene fluoride-based coatings, known commercially as PVDF roof coatings, are a newer type of coating that works well with metal roofs or low slope roofs. The cost of a standard acrylic coating will typically fall between $3. The system prolongs the lives of roofs by significantly reflecting the sun's harmful heat and UV rays. Sealant / Coating: Both. It is similar to the acrylic resin used in latex house paint but that. Insulating Elastomeric White Roof Sealer: Price $ 119 00 /pail. ASC S SilIcone Coating. 50 per square foot, including installation. 00 per square foot for the average 20,000. 05Industry leading High Tensile Strength high-build roof coating. A two component, solvent based, high build, glossy aliphatic acrylic polyurethane finish coat. Due to their water base makeup, acrylic roof coatings have one main deficiency: withstanding ponding water. The average lifespan of an acrylic roof coating is between 10 and 20 years. Silicone and acrylic roof coatings are the most common elastomeric roof coating types. The silicone roof coating's highly reflective surface reflects the majority of the sun's rays, allowing the building to maintain a comfortable temperature without the use of air conditioning to chill the facilities, ostensibly saving more than 30% on energy costs. Another coating option is the SPF or Spray Polyurethane Foam which is more expensive than acrylic and silicone depending on the cell type and density. This product can be safely used on roofs made of PVC, EPDM, Modified Bitumen, Metal, and Wood. Pros of silicone coatings Cost-effective. Once silicone coatings begin to tear, they will tear faster than acrylic coatings will. Here at Progressive Materials, a common misconception we come across is that there is not much difference between organic coatings (like acrylic or paint coatings) and our inorganic, silicone coatings. Below, Acrylux acrylic roof mastic from Acrylux Specialty Coatings, Paints & Sealers, 6010 Powerline Road, Fort Lauderdale FL 33309, USA, Tel: 954-772-0300. Acrylic roof coatings have better tear resistance . A single component elastomeric coating ideal for renewing your weathered and leaking roof. HIGH SOLIDS. Acrylic vs Silicone Roof Coating . It is UV-stable and maintains its elasticity even after decades of exposure to weather and climate. The silicone-modified formula is designed to promote excellent resistance to cracking, peeling, and. Carefully selecting the materials you use can help—and with new roofing technologies being developed every day, you have a lot of options. These types of covering are water-based, which is great for the environment and very cost effective. Henry 887 forms a tough chemical bond to the roof surface that is much stronger than how conventional acrylic coatings bond. Silicone Roof Coating Fluid-Applied Silicone Roofing. These coatings are UV resistant, environmentally friendly, and are simple to work with and clean up. Heng’s Rubber Roof Coating. Based on this information, roofing contractors working in the southern United States may think they cannot use water-based acrylic systems at all—such as our Met-A-Gard or Met-A-Gard+ systems—but this is simply not true. Silicone is also less likely to peel and crack because it has a thicker consistency. Silicone can cope with extreme temperatures and weather, and is able withstand ponding water. 50 per square foot installed. You’ll notice a number of advantages to this product, which help justify the higher cost: More resistant to mold and algae growth. 05 $ 152. . Silicone boasts a high resistance to UV rays. The main difference between the. For example, suppose you live in a stormy region. A single component elastomeric coating ideal for renewing your weathered and leaking roof. Mastics, Cements and Sealants. Use a scrub brush and a bucket of soapy water. Stage all products out of direct sunlight and protect them from freezing. Heng’s 1-gallon Rubber Roof Coating. Acrylic Roof Coatings: Choosing the Best Protection for Your Roof Previous Post Protecting Your Investment: Things to Consider. In Section 1512-Reroofing, Item 4 under Section 1512. As stated earlier, coating a roof is an ideal way to experience energy savings and prolong the life of your. From industrial to commercial buildings, a roof coating can be detrimental to the roof’s longevity. 75. While acrylic is less expensive and can be painted over,. Acrylic roof coatings have protective and reparative benefits for roofs. Acrylic Roof Coating vs Silicone Roof Coating. Learn the fundamentals of roofing with these how-to videos, commercial roofing tips, roofing industry updates, and everything else related to roofing. GacoRoof 100% Silicone Roof Coating creates a seamless membrane to seal and repair existing roofs and permanently protect against leaks, permanent ponding water and the damaging effects of severe weather. Pros. 75-Gallon White Elastomeric Reflective Roof Coating (7-year Limited Warranty) Model # AP-2415. The #1 benefit of a silicone roof coating system is the cost savings versus completely tearing off and installing a new roof system. Frequently asked questions. While we typically apply an acrylic elastomeric roof recoat every 18 years, a silicone roof recoating should take place every 10 years. As stated earlier, these water-based acrylics are prone to improper drying or freezing if left in low temperatures for an extended period of time. Select a Product. Coatings will not properly adhere to the shiny, slick top surface of a brand-new TPO membrane –. Again, The best commercial roof coating is becoming more and more clear. Henry 287 Solar-Flex White Elastomeric Roof Coating is a premium, elastomeric, water-based acrylic latex coating. These include waterproofing abilities, tensile strength, and environmental friendliness. The. Expect to spend approximately , including both the cost of the liquid EPDM (synthetic rubber) coating and labor. Silicone roof coatings create a highly flexible, monolithic, and impermeable membrane capable of withstanding wind-driven sand, oxidation, and extreme temperatures. Silicone Vs. It can be economically tinted to any custom color. The average lifespan of an acrylic roof coating is between 10 and 20 years. Contact. Dicor Self-Leveling Lap Sealant : Best Option for RV Roofs. Step 5: Mix and Stage Roofing Products. A TPO membrane should be at least five years old before being coated. A: Jackie, we would not recommend Henry 687 Enviro-White as a coating for an RV roof. In terms of basic differences, acrylic is a resin type and is usually thin and strong, while elastomeric, a property of paint, is thick and strong. Lowers cooling costs. Here’s a closer look at the pros and cons of acrylic vs silicone conformal. 1. # for 1 coat. Silicone Roof Coating: What is Right for My Roof?Guide to acrylic roof coatings pros and cons including what it is, cost and criteria for choosing the best acrylic roof coatings. Silicone coatings, like GAF's line of Unisil silicone coatings, help protect the substrate against weathering and UV damage while also providing protection against leaks due to ponding water. 54. 75-gallon White Roof Coat from KST Coating is one of the best RV roof coatings with its rubber-like protection from moisture and UV rays. Henry’s 887HS Tropi-Cool 100% silicone roof coating for RV EPDM rubber roofs is a water cure coating that uses the moisture from the air to cure. Urethane roof coating systems are highly reflective and UV stable. Also, acrylic is usually the cheaper coating in terms of raw materials. This sprayed-in-place Polyurethane Foam (SPF) applies as a liquid and expands into a foam to create a seamless, single layer of roof insulation. ft) 100. Stands up to permanent ponding water without bubbling, peeling, or breaking down. Created Date:Acrylic and silicone are two of the most popular choices for conformal coatings, but each has its pros and cons. It has excellent energy savings properties due to its sun and heat reflectance. Resources (205) 440-4996 Silicone vs. Base: Change Base. Most buildings vary in flat, pitched, and sloped roofing services. SLOPE. 00 per square foot for the average 20,000-square-foot commercial roof. web // The Cool Roof Store sells two very different types of silicone roof coatings, which are. Intro to Acrylic, Silicone & Urethane Coatings. Ziollo makes quality items for RV owners, and the Ziollo RV Flex Repair Silicone RV Roof Sealant is another great product. When it comes to roof coatings, there are a variety of options available on the market, each with their own unique benefits and drawbacks. Acrylic Roof Coating. EXTENDS ROOF LIFE. #85 Silicone Coating #27 Non-Fibered Aluminum #28 Fibered Aluminum #70 Acrylic Coating #80 Premium Acrylic Coating #3 Asphalt Primer #4 Roof Cement. Rust-Oleum 10-year Elastomeric Roof Coating provides a high initial reflectivity value of 80%, energy efficiency, and long term durability. Roof coatings are installed on existing roofs. Come See Us: 4115 Capitol Drive, New Albany, IN 47150. Many roof coating products offer greater viscosities specially designed for use with fabrics to provide enhanced protection at the substrate seams, penetrations and. Ideal for metal, aged mod-bit and built-up roofing, concrete and tile. . It is not a roof coating like the 887. October 6, 2016 – Gaco Western is entering the RV industry with the launch of GacoMobileRoof Kit, a 100% silicone roof coating system and accessories kit that will waterproof the aging roof of any recreational vehicle or motorhome. No hot kettles, no expensive installation equipment, and no special seaming. Although, RV Roof Sealant is based on acrylic and urethane serves very well to the sealant purposes. foot in materials and labor. The materials costs for one coat of premium acrylic elastomeric coating on 1000 square feet of surface area costs around $250-350. These coatings are made from materials with high solid emulsion making them durable and highly reflective. Silicone coatings won’t chip away over time. Silicone Roof Coating. They provide a quick and convenient fix for property executives who want an uncomplicated solution for old or leaking roofs. It comes in one- or five-gallon buckets, tubes of caulk, tapes or even spray coatings. Acrylic roof coatings have existed longer than silicone, and they have been a popular option for commercial roof restoration for decades. Kynar polyvinylidene fluoride-based coatings, known commercially as PVDF roof coatings, are a newer type of coating that works well with metal roofs or low slope roofs. Once dried, they are also fully adhered and entirely seamless. Which Is Better, Silicone or Acrylic? In the case of silicone vs acrylic roof coating—who comes out on top? Pound for pound, silicones are the best type of roof coating material on the market today. Rust-Oleum 301903 10 Year Elastomeric Roof Coating white gal. BEST FOR RV ROOFS. This blog is dedicated to looking at the main differences when it comes to inorganic vs organic. 75 gal. Using Water-Based Coatings During the Fall & Winter. Pay $37. For a silicone roof coating, you can expect to pay anywhere between a dollar and a dollar fifty for the pure material cost per square foot. The system prolongs the lives of roofs by significantly reflecting the sun's harmful heat and UV rays. From start to finish, the kit contains everything you need to re-coat the roof of your. Acrylics can be beneficial and cheap when in need of a quick fix on a sloped roof, but silicone is far superior when comparing longevity, durability, and ease of application. Excellent resistance to heat, cold, and UV radiation. It is ideal for places that don’t need much protection from nature’s elements. 54 after $25 OFF your total qualifying purchase upon opening a new card. Withstands impact and prevents cracks. 4. Silicone can cope with extreme temperatures and weather, and is able withstand ponding water. acrylic vs. Both spray foam and silicone roofing systems use silicone thickness as the #1 factor in determining the length of the warranty. 5 Gal. Rust-Oleum 301903 10 Year Elastomeric Roof Coating white gal. 2. The roof gets hot in the sun and silicone is. You should coat over Henry 289 with an acrylic roof coating like Henry 587 Dura-Brite to protect it from the damaging UV rays of the sun. It can help add many more years of life to your RV. Call Us: (812) 725-3542. Siliconizer Roof Coating is a thick, rubberized, high performance and silicone-modified elastomeric roof coating. Proper preparation ensures a clean, smooth, and uniform surface for coating adhesion. Ziollo RV Flex Repair. That is because silicone coatings can withstand UV rays and moisture better than acrylic coating. Ultra Siliconizer is a thick, high performance silicone-modified 100% acrylic elastomeric roof sealer. Wind and rain Weather is a large factor when dealing with roof repair—wind and rain can be an enemy to a roof repair job. Water is less likely to pond on your roof. Polyurethane roofs that hit that 15 to 20-year mark. Features & detailsThe Cool Roof Store sells both coatings and will be happy to show you all the tricks of the trade that can save you from making an expensive mistake. GacoFlex solvent-free silicone coatings are made almost entirely of solids. 1. . Silicone Roof Coatings. REDUCE ENERGY COSTS. Stays flexible and maintains adhesion. Typical RV roofs are either EPDM (rubber roof), TPO, Fiberglass, or Aluminum. Although there are exceptions, most fire ratings are. This solvent-free coating for flat roofs employs cutting-edge 100% silicone moisture-cure technology. This product is a 100% Silicone coating that has no solvents. Our Verdict. Coatings will not properly adhere to the shiny, slick top surface of a brand-new TPO membrane –. 7. Once coated with an approved acrylic, silicone, or urethane coating, GacoRoofFoam forms a complete roofing system for new construction or re-roofing projects. Siliconizer Roof Coating is a thick, rubberized, high performance and silicone-modified elastomeric roof coating. Benefits 100% SILICONE. Silicone and acrylic coatings have similar UV reflectivity when first applied (around 80-90%) but in the long run, acrylic actually rates better in this regard. Silicone - Physical Properties15. Venture Roofing provides professional commercial roof coating services for clients in Metro Atlanta and the surrounding areas. From there, we suggest cleaning your roof with our RV Roof Cleaner and a soft/medium bristle brush. 2. February 24th, 2023 How to Remedy & Prevent Ponding Water on a Flat Roof. Silicone and acrylic differ on the chemical level - silicone is made of a chemical solvent, and in acrylic products, this solvent is replaced by water. APOC ® 252 Energy-Armor Sunwhite ® Premium Acrylic Elastomeric Roofing Coating. Acrylic is a lightweight plastic material that has a wide range of uses, from house paint to nail polish. Silicone has many characteristics that make it useful on commercial roofs:. Organic Coatings. Ultra Siliconizer 100% Acrylic Elastomeric Reflective Roof Coating (Silicone-Modified) Brand: LANCO. Silicone roof coating prices are $1. The repairs are usually less than 25% of the roof, keeping the rest of the roof untouched. Apply over pre-existing elastomeric roof coatings, metal roofs, built-up roofing, mineral cap sheet, and weathered single ply membranes (EPDM,. You get up to 10 years of protection with one application of this high-solids coating that has a premium, reflective formula. Where Acrylic and Elastomeric Paints Differ. silicone roof coating debate is the level of durability. Acrylic vs Silicone Roof Coatings: Which Is Better?The Dicor brand name has always been synonymous with quality, and this EPDM rubber roof coating of theirs will certainly not disappoint. ASC S SilIcone Coating. The Dicor brand name has always been synonymous with quality, and this EPDM rubber roof coating of theirs will certainly not disappoint. Silicone roof coatings also “chalk” less than standard acrylics decreasing the time required between recoatings. How long do flat roof coatings last? Typically, flat roof coatings have a warranty of 10-20 years, depending on thickness. Learn the differences between the two most widely used elastomeric roof coatings. Show Details. Most choose aluminum due to its effective ability at reflecting ultraviolet radiation, reducing temperatures on the rooftop, preventing premature aging. Show Details. Silicone roof coating is water-repellent or waterproof. Both acrylic and silicone roof coatings are viable options for your roof membranes. Ideal for use on flat and sloped roofs including, but not. However, it is possible to get a quality silicone roof coating installation for $4. Which is better, silicone roof coatings or acrylic? Learn how these two popular coatings stack up on price, life expectancy, water resistance, and more. Elastomeric coatings are sprayed onto the base of vents and can create a waterproof. Con: 100% Silicone Roof Coating Costs 2-3 Times More Than Elastomeric Coating. On a bus, the roof is. Progressive Materials LLC 540 Central Court New Albany, IN 47150 Telephone: (812) 944-7803 Fax: (812) 944-7804. 50 per square foot. In this blog we look at silicone vs acrylic coatings, compare each, and determine which coating is the. A roof that was coated with an acrylic coating can be re-coated with either acrylic or silicone, but a roof that was coated with silicone can only be recoated with. Progressive Materials LLC 540 Central Court New Albany, IN 47150 Telephone: (812) 944-7803 Fax: (812) 944-7804 Shop#923 ETERNA-SIL PREMIUM SILICONE ROOF COATING. 0 out of 5 stars 63 ratings. Buy 8 or more $ 107. Driveways that are in better condition will absorb less. Best Premium RV Roof Sealant and Coating: Heng’s Rubber Roof Coating. It also has a white color instead of a black one, making it better at repelling UV rays and keeping your home cool. The most common options for mobile home roof coatings are acrylic and liquid rubber. Silicone vs Acrylic Elastomeric Roof Coating Differences. Hover Image to Zoom. The highly-reflective, glossy finish of GacoFlex S20 and S21 Silicone Roof Coatings can help reduce energy costs. Superior adhesion and durability. KST COATING KS0063300-20 White Roof Coat. For any building with a flat or low-slope roof, silicone is really the only option you should consider. Perform adhesion tests and, if necessary, apply a primer to your roof to improve coating adhesion. Be careful not to inject water into the roof substrate while. Reflects 87 percent of UV rays. Apply for a Home Depot Consumer Card. Henry Pro Grade 988 Silicone White Roof Coating is a professional one-component silicone roof coating. 1-Roof Recover indicates a new roof coating being applied over an existing roof covering or roof coating is permitted by the code without tearing off existing roof coverings. What this means is that an estimated cost to coat a commercial roof with a silicone coating should cost somewhere between $2. ASC 1 Acrylic Roof Coating. White TPO is highly reflective and offers the building great UV protection. Acrylic roof coatings are one of the cheapest available types of roof coatings, but other materials can offer a longer lifespan. 50 per square foot. PVDF’s main component, resin, keeps the coating looking fresh without chalking or. acrylic coatings. . Both options are popular because they generally extend a roof’s lifespan and quell any leak. The coating cost per square foot typically ranges from $2 to $5, while labor usually costs between $0. Withstands impact and prevents cracks. The same applies on the ground. The acrylic coating is 5 to 10 times thicker than house paint and not as brittle. Due to their water base makeup, acrylic roof coatings have one main deficiency: withstanding ponding water. 14. As such, this type of coating is strong and highly protective against the effects of ultraviolet rays and reduces the temperature of the roof membrane to which it is applied. They can be installed over most existing roof types, reducing the need for tear-offs for structurally sound roofs, or installation of cover boards. Silicone and acrylic roof coatings are both used mostly. HIGH SOLIDS. Silicone, asphalt, polyurethane, and acrylic elastomeric roof coatings are the most common options. They are also easy to apply and can be tinted to match the color of the roof. Maximum Field Use Dry Film Thickness (in mils): 16 WFT per coat; 46 DFT total for 3 coats. Give us a call for your roof coating needs. An impressively flexible and strong RV roof sealant and coating that’s formulated to last a whole lifetime. It is typically used in various construction projects, such as bridges, roads, stadiums, power plants, warehouses, and other buildings. ft. Environmentally friendly and long-lasting this is an ideal coating material for roofs that have high and multiple slopes. silicone roof coatings weighs factors like durability, climate, energy and waterproofness. View Full Product Details. but the added durability is a significant benefit when considering silicone vs. It can be used on both sloped or flat roofs. Please call us directly at (812) 725-3542 to discuss job specific or competitive pricing for commercial projects. This article covers four roof coatings: acrylic, silicone, polyurethane, and an asphaltic rubber membrane system. Also, acrylic is usually the cheaper coating in terms of raw. Liquid Roof RV Coating; 12. Fluid-applied silicone roofing has many great benefits for property owners. Inorganic vs. 100% Acrylic (Water-Based) (5) Acrylic (5) Acrylic (5) Silicone (2) Silicone. Property owners who want a strong and affordable roofing coating love acrylic. The insulation will consist of 4 inches of recycled polyiso topped with 4-7 inches of EPS. Many roof coating products offer greater viscosities specially designed for use with fabrics to provide enhanced protection at the substrate seams, penetrations and. Our Acrylic and Silicone Roof Coatings are marked down to the lowest prices they have ever been, for a limited time. A silicone roof coating is highly waterproof and prevents water penetration, even on flat roofs. Rubber roof sealants for RVs – The Best RV Roof Sealants are usually made of an extremely durable synthetic rubber roofing membrane (EPDM) or thermoplastic polyolefin (TPO) – Ziollo Rubber Roof Sealant is one of the best (if not the best. Rubberseal Liquid. All these substrates are well suited. 89. GardnerGibson.