5 Best Mobile Home Roof Sealants That Professional Installers Swear By
Leaky mobile home roofs can quickly escalate from minor annoyances to major financial burdens if left unaddressed. Finding the right sealant that works harmoniously with your existing roof materials isn’t just about stopping leaks—it’s about extending your roof’s lifespan and protecting your investment.
We’ve researched and tested dozens of products to identify the five best mobile home roof sealants that offer exceptional compatibility with common roofing materials while providing superior protection against moisture, UV damage, and temperature fluctuations.
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Why Mobile Home Roof Sealants Are Critical for Maintenance
Understanding Common Mobile Home Roof Materials
Mobile homes typically feature metal, rubber (EPDM), or TPO (thermoplastic polyolefin) roofing materials. Metal roofs, common in older units, are susceptible to rust and separation at the seams. EPDM rubber roofs offer excellent flexibility but can deteriorate from UV exposure. TPO roofs provide good energy efficiency but may develop cracks at fastening points over time. Each material requires specific sealant compatibility to maintain integrity.
Signs Your Mobile Home Roof Needs Resealing
Water stains on interior ceilings or walls signal immediate resealing needs. Bubbling or peeling of existing sealant indicates deterioration requiring prompt attention. Visible cracks, gaps at seams, or flashing separations demand immediate repair. You’ll also notice higher energy bills from compromised insulation when seals fail. Musty odors often develop before visible leaks appear, serving as an early warning sign.
Eternabond RSW-4-50 RoofSeal White Repair Tape
Seal leaks permanently with EternaBond Roofseal Tape. This 4" x 50' roll provides a waterproof bond on most roof surfaces, and its Microsealant is designed to not adhere to silicone.
Key Features and Benefits
Eternabond RSW-4-50 creates an instant watertight seal that lasts up to 19 years. Its UV-stable MicroSealant technology prevents deterioration from sun exposure while maintaining flexibility in temperatures from -70°F to 150°F. The peel-and-stick application requires no special tools or mixing, making it perfect for quick emergency repairs and preventative maintenance on mobile home roofs.
Compatibility With Existing Materials
Eternabond tape adheres exceptionally well to metal, rubber (EPDM), TPO, and fiberglass roofing materials common in mobile homes. It creates a chemical bond with most surfaces, eliminating the need for primer on clean, dry surfaces. The 4-inch width provides adequate coverage for seams and small damaged areas, while its white color reflects heat and integrates visually with most mobile home roofing systems.
Dicor EPDM Self-Leveling Lap Sealant
Create a watertight seal on your RV roof with Dicor 501LSW-1 Self-Leveling Lap Sealant. This sealant adheres to various surfaces, including EPDM and TPO sheeting, providing a durable secondary barrier against leaks.
Key Features and Benefits
Dicor’s EPDM Self-Leveling Lap Sealant creates an impenetrable watertight seal on horizontal seams and joints. Its unique self-leveling formula flows into cracks and crevices, ensuring complete coverage even in hard-to-reach areas. This sealant offers exceptional UV resistance, preventing premature deterioration and cracking, while maintaining flexibility during temperature fluctuations. A single tube covers approximately 41 linear feet of 1/4-inch bead, making it cost-effective for larger repair projects.
Compatibility With Existing Materials
Dicor EPDM sealant bonds exceptionally well with rubber roofs, creating a seamless integration with existing EPDM materials. It also adheres effectively to metal, fiberglass, and TPO surfaces, eliminating compatibility concerns for mixed-material mobile home roofs. The sealant’s chemical composition prevents adverse reactions with common roofing materials, ensuring long-term stability. For optimal adhesion, surfaces should be clean and dry before application, though it performs well even in variable climate conditions.
Henry HE587372 Tropicool 100% Silicone Roof Coating
Protect your roof with Henry HE587372 White Roof Coating. This 5-gallon container offers an easy-to-use solution for roof protection.
Key Features and Benefits
Henry Tropicool silicone roof coating delivers exceptional waterproofing with its 100% silicone formula that creates a seamless membrane over your mobile home roof. It reflects up to 88% of sun’s rays, reducing indoor temperatures by up to 15°F and potentially lowering cooling costs. This single-component coating requires no mixing and cures even in high humidity, creating a durable shield that resists ponding water and maintains flexibility in extreme temperatures.
Reflect the sun's heat and protect your roof with Henry Tropicool 100% Silicone Roof Coating. This premium, moisture-cure formula creates a strong, waterproof seal for lasting durability, even in extreme weather.
Compatibility With Existing Materials
Henry Tropicool adheres excellently to metal roofs, making it ideal for aluminum and galvanized steel mobile home roofing. It’s also compatible with EPDM rubber, TPO, and previously coated surfaces without requiring a primer in most cases. This versatility eliminates the need to remove existing sealants before application, saving you significant prep time. For optimal results, surfaces should be clean and free of loose rust or peeling coatings.
Flex Seal Liquid Rubber Coating
Key Features and Benefits
Flex Seal Liquid Rubber Coating creates a watertight, flexible barrier that can expand and contract with your mobile home roof. This liquid sealant dries into a rubberized coating that’s extremely durable against harsh weather conditions, preventing leaks for years after application. It also provides excellent UV protection, preventing premature aging and cracking while enhancing your roof’s temperature regulation properties.
Compatibility With Existing Materials
Flex Seal adheres exceptionally well to multiple mobile home roofing materials, including metal, rubber (EPDM), fiberglass, and TPO. You can apply it directly over previously sealed areas without removing old sealant, making it perfect for maintenance and repairs. The sealant creates a seamless membrane that bonds with existing surfaces, filling small cracks and sealing vulnerable joints with minimal preparation.
Heng’s Rubber Roof Coating
Protect your RV roof with HENG'S Industries Rubber Roof Coating. This durable, UV-resistant formula waterproofs EPDM roofs, seals seams, and withstands cracking.
Key Features and Benefits
Heng’s Rubber Roof Coating delivers exceptional waterproofing with its thick, elastomeric formula that creates a seamless membrane over your mobile home roof. This high-quality coating flexes with temperature changes, preventing cracks and maintaining integrity year-round. It offers excellent UV protection, reflecting sunlight to reduce heat buildup and potentially lower cooling costs. The white finish helps maintain comfortable interior temperatures even during peak summer months.
Compatibility With Existing Materials
Heng’s Rubber Roof Coating adheres exceptionally well to EPDM rubber roofs without requiring a primer, making it perfect for extending the life of aging rubber roofing systems. It’s also compatible with fiberglass, metal, and TPO surfaces when used with the appropriate primer. This versatility makes it ideal for mobile homes with mixed roofing materials or previous repairs. The coating can be applied directly over existing sealants that are still firmly bonded, saving valuable prep time during maintenance projects.
How to Choose the Right Mobile Home Roof Sealant for Your Needs
Choosing the right sealant for your mobile home roof doesn’t have to be overwhelming. Each product we’ve featured offers unique benefits whether you need emergency repair tape like EternaBond RSW-4-50 or complete coating solutions like Henry Tropicool Silicone.
Consider your specific roofing material first then factor in your climate conditions and budget constraints. Remember that proper application is just as important as product selection. Even the best sealant won’t perform well if surfaces aren’t properly prepared.
By investing in quality sealants compatible with your existing roof materials you’ll extend the life of your home while avoiding costly repairs down the road. Take action at the first sign of roof issues and you’ll protect your investment for years to come.
Frequently Asked Questions
What are the signs that my mobile home roof needs resealing?
Look for water stains on ceilings, bubbling or peeling sealant, visible cracks in the existing sealant, increased energy bills, and musty odors. These indicators suggest your mobile home roof may need resealing before small problems become major leaks and expensive repairs.
Which roof sealant works best for metal mobile home roofs?
Henry HE587372 Tropicool 100% Silicone Roof Coating is excellent for metal roofs. It adheres well to aluminum and galvanized steel without requiring a primer in most cases. It creates a seamless waterproof membrane that reflects up to 88% of sun rays, potentially reducing indoor temperatures by up to 15°F and lowering cooling costs.
How long does Eternabond RoofSeal tape last?
Eternabond RSW-4-50 RoofSeal White Repair Tape lasts up to 19 years. Its UV-stable MicroSealant technology prevents deterioration from sun exposure, making it an excellent long-term solution for mobile home roof repairs. The peel-and-stick application makes it ideal for both emergency repairs and preventative maintenance.
Can I apply roof sealant over existing sealant?
Flex Seal Liquid Rubber Coating can be applied directly over previously sealed areas, making it ideal for maintenance and repairs. However, for most sealants, it’s best to clean the surface and remove loose or peeling old sealant before application to ensure proper adhesion and longevity of the new seal.
What roof sealant is best for EPDM rubber roofs?
Dicor EPDM Self-Leveling Lap Sealant and Heng’s Rubber Roof Coating are both excellent for EPDM rubber roofs. Dicor creates a watertight seal on horizontal seams and joints, while Heng’s thick elastomeric formula forms a seamless membrane that adheres well to EPDM without requiring a primer.
How do roof sealants help with energy efficiency?
Quality roof sealants like Henry Tropicool can reflect up to 88% of the sun’s rays, potentially lowering indoor temperatures by up to 15°F and reducing cooling costs. By creating a seamless waterproof barrier, sealants also prevent air leaks that can cause energy loss, improving overall temperature regulation and efficiency.
Do I need different sealants for different areas of my mobile home roof?
Yes, different areas may require specific sealants. Use self-leveling products like Dicor for horizontal surfaces and joints, while non-sag formulations work better for vertical surfaces. Eternabond tape is ideal for seams and small repairs, while full coatings like Henry Tropicool or Heng’s are better for comprehensive coverage.
How should I prepare my roof before applying sealant?
Clean the surface thoroughly to remove dirt, debris, and loose material. Repair any damaged areas and ensure the surface is completely dry. Some materials may require a primer before applying sealant. Follow manufacturer guidelines for specific temperature requirements and application methods to ensure optimal adhesion.
