Your enclosed trailer roof takes a beating from sun, rain, and temperature swings. A small leak can lead to costly water damage, so choosing the right sealant is essential.
This guide compares five top options to help you find the best enclosed trailer roof sealant for your needs. We’ll cover full coatings and lap sealants, so you can make an informed decision.
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Liquid Rubber RV Roof Sealant – Flexible & Reflective
Brand: Liquid Rubber
Best for a durable, reflective full-roof coating project.
Liquid Rubber RV Roof Sealant creates a flexible, waterproof membrane that moves with your trailer in all temperatures. This professional-grade coating prevents leaks and water damage while reflecting solar heat, which can help keep your interior cooler. It’s designed for EPDM, TPO, fiberglass, and aluminum roofs, making it a versatile choice for many trailers.
You can achieve professional results in just one weekend, making it a great weekend project solution. The elastomeric formula provides a complete roof protection system that goes beyond basic repair kits. If you’re looking to recoat your entire trailer roof with a durable, reflective sealant, this is a solid option.
- Flexible waterproof membrane
- Solar reflective coating
- Works on multiple surfaces
- Requires multiple coats
- Needs dry weather to apply
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- FLEXIBLE WATERPROOF MEMBRANE: Our professional-grade RV roof sealant creates a flexible seal, preventing leaks and water damage while maintaining flexibility in all temperatures – perfect for travel trailers, campers, pop up campers, rv’s, and for keeping your trailer’s interior dry all year long
- COMPLETE ROOF PROTECTION SYSTEM: This elastomeric roof coating with heat reflective properties surpasses basic rubber roof repair kits by providing unmatched solar reflective performance that reduces heat absorption, lowering interior temperatures, saving costs on your heating bills and extending your RV roof's lifespan
- VERSATILE MULT-SURFACE SYSTEM: Designed to work with EPDM, TPO, Fiberglass, and aluminum Roofs, skylights, RV vent covers, and camper awning components as part of a complete RV roof sealing system. This liquid rubber coating pairs with Liquid Rubber EPDM Primer for enhanced adhesion on EPDM and TPO surfaces., delivering durable, leak-proof coverage.
- WEEKEND PROJECT SOLUTION: Achieve professional RV roof repair results in just one weekend with our easy 3-step system (Liquid Rubber RV Smart Cleaner, Liquid Rubber EPDM & TPO Primer, Liquid Rubber RV Roof Coating) – no special tools required! Simply apply with brush, roller or sprayer between 50°F-90°F(10°C-32.2°C) for a brilliant white, durable roof sealant waterproof membrane
- MAXIMUM COVERAGE & PERFORMANCE: Rolls on like paint – Apply 1 gallon for every 50 sq ft to achieve your final recommended thickness. 1 – 5G pail will cover a 30 foot RV; be sure to use up all material – For complete protection, use with Liquid Rubber Lap Sealant, and Liquid Rubber Seam Tape on joints, vents, skylights and transitions where movement may occur, creating a watertight system compatible with all camper roofs
- WATER BASED FORMULA: Our, zero VOC, water-based technology safely seals RV roofs without harmful solvents – store sealed containers above freezing for future touch-ups. Perfect for RV roof repair, camper roof maintenance, and motorhome waterproofing, ensuring weather-resistant performance
- TRUSTED DURABILITY: We stand behind our RV roof sealant with 10 years of protection, ensuring long-lasting performance when applied as directed
Liquid Rubber RV Roof Sealant – Professional-Grade Protection
Brand: Liquid Rubber
Ideal for large roofs needing reflective, flexible coverage.
This Liquid Rubber RV Roof Sealant offers the same flexible waterproof membrane and solar reflective properties as the previous version, but in a different package size. It creates a strong seal that prevents leaks while maintaining flexibility through temperature swings. The elastomeric coating is designed for EPDM, TPO, fiberglass, and aluminum roofs, providing versatile protection for your trailer.
You can complete your roof repair project in a weekend with this professional-grade system. The heat reflective performance helps reduce interior temperatures, which is a bonus during summer months. If you need a reliable, full-coverage sealant for a larger roof area, this option delivers consistent results.
- Excellent solar reflectivity
- Flexible in all temperatures
- Professional-grade formula
- Heavy when wet
- May need primer on some surfaces
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- FLEXIBLE WATERPROOF MEMBRANE: Our professional-grade RV roof sealant creates a flexible seal, preventing leaks and water damage while maintaining flexibility in all temperatures – perfect for travel trailers, campers, pop up campers, rv’s, and for keeping your trailer’s interior dry all year long
- COMPLETE ROOF PROTECTION SYSTEM: This elastomeric roof coating with heat reflective properties surpasses basic rubber roof repair kits by providing unmatched solar reflective performance that reduces heat absorption, lowering interior temperatures, saving costs on your heating bills and extending your RV roof's lifespan
- VERSATILE MULT-SURFACE SYSTEM: Designed to work with EPDM, TPO, Fiberglass, and aluminum Roofs, skylights, RV vent covers, and camper awning components as part of a complete RV roof sealing system. This liquid rubber coating pairs with Liquid Rubber EPDM Primer for enhanced adhesion on EPDM and TPO surfaces., delivering durable, leak-proof coverage.
- WEEKEND PROJECT SOLUTION: Achieve professional RV roof repair results in just one weekend with our easy 3-step system (Liquid Rubber RV Smart Cleaner, Liquid Rubber EPDM & TPO Primer, Liquid Rubber RV Roof Coating) – no special tools required! Simply apply with brush, roller or sprayer between 50°F-90°F(10°C-32.2°C) for a brilliant white, durable roof sealant waterproof membrane
- MAXIMUM COVERAGE & PERFORMANCE: Rolls on like paint – Apply 1 gallon for every 50 sq ft to achieve your final recommended thickness. 1 – 5G pail will cover a 30 foot RV; be sure to use up all material – For complete protection, use with Liquid Rubber Lap Sealant, and Liquid Rubber Seam Tape on joints, vents, skylights and transitions where movement may occur, creating a watertight system compatible with all camper roofs
- WATER BASED FORMULA: Our, zero VOC, water-based technology safely seals RV roofs without harmful solvents – store sealed containers above freezing for future touch-ups. Perfect for RV roof repair, camper roof maintenance, and motorhome waterproofing, ensuring weather-resistant performance
- TRUSTED DURABILITY: We stand behind our RV roof sealant with 10 years of protection, ensuring long-lasting performance when applied as directed
BEEST RV Roof Coating – High-Coverage Solar Sealant
Brand: BEEST
Great for large trailers needing UV-resistant, high-coverage coating.
BEEST RV Roof Coating is a liquid rubber sealant that offers solar reflectivity and waterproof protection. It’s designed to be ultra strong and flexible, resisting UV rays and extreme temperatures. You can use it on trailer roofs, metal roofs, flat roofs, and pop-up campers, making it a versatile option for various surfaces.
For best results, apply a minimum final thickness of 1 gallon per 50 square feet, requiring 2-3 heavy coats. A 5-gallon pail can cover RVs up to 30 feet long, which is helpful for larger trailers. The elastomeric formula is safe and designed to withstand harsh weather, providing reliable leak protection.
- UV resistant and waterproof
- Works on many surfaces
- All-weather resistant formula
- Requires 2-3 heavy coats
- Covers only 50 sq ft per gallon
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- #1 FLEXIBLE LIQUID RUBBER RV ROOF SEALANT: Looking for a solar reflective RV roof coating that is UV resistant? Ultra strong and flexible, BEEST camper roof sealant is waterproof and UV stable to stop the sun and rain from degrading your roof, the absolute best way to fix your leaking roof!
- HIGH-COVERAGE RV SEALANT: Apply a minimum final thickness of 1 gallon/50 sq. ft.(4.65 sq. m. meters), requiring 2-3 heavy coats. A 5-gallon pail can cover RVs up to 30 feet long. Use BEEST RV Roof Cleaner & Primer before sealing for best results (EPDM roofs MUST use a primer).
- THE ULTIMATE RV SEALER FOR EVERY SURFACE: BEEST rubber roofing material is perfect as a trailer roof sealant, a metal roof sealant, for flat roofs around the home, pop-up campers, trailers, gutters, planter boxes, foundations & basements, fences, wood, concrete, stucco, & more!
- ALL WEATHER RESISTANT & SAFE ELASTOMERIC ROOF COATING: Designed to withstand extreme temperatures for year-round protection, our rubber roof sealant is eco-friendly, solvent-free, and ultra-low VOC. It is safe to use around humans and pets, both indoors and outdoors.
- SUPER SIMPLE APPLICATION: Anyone can do it! Apply using a brush, roller or high-quality sprayer after cleaning the surface of dust and debris. Then apply the first coat and wait 4 hours before applying the second coat. Allow 48 hours to fully cure at temperatures between 40-90°F.
- MADE IN THE USA BY AMERICAN FAMILY-OWNED COMPANY: BEEST is a USA-based company in Carlisle, Pennsylvania. All BEEST products have a 100% satisfaction guarantee and excellent USA customer service members waiting by the phone to answer any questions.
Kohree RV Roof Sealant – Self-Leveling Lap Sealant
Kohree RV Roof Sealant is a self-leveling lap sealant that spreads smoothly within 30 seconds, forming a flat, even seal. It’s designed for bonding with EPDM, TPO, PVC, aluminum, brass, steel, glass, mortar, and wood, making it highly versatile for different surfaces. The low-odor, harmless formula is safe for indoor and outdoor use, so you can work comfortably.
This sealant creates a strong, waterproof seal at gaps and seams, preventing water intrusion around vents, edges, and screw heads. It’s ideal for maintenance and repair tasks where you need a reliable, easy-to-apply seal. If you’re fixing specific problem areas rather than recoating the entire roof, this is a convenient choice.
- Self-leveling within 30 seconds
- Low odor and safe formula
- Strong waterproof adhesion
- Not for full roof coating
- May yellow over time
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- Self-Leveling Lap Sealant for RV Roofs: Kohree RV roof sealant has a better self-leveling effect. It will self-level within 30 seconds, forming a flat surface from a linear shape to better cover and seal the gap
- Safety: RV lap sealant self leveling adopts a harmless formula and low odor. It can be used indoors and outdoors, safe for humans and pets
- Wide Application: Bonding with various surfaces, including EPDM, TPO, PVC, Aluminum, brass, steel, glass, mortar, wood, etc. RV self leveling roof sealant meets the different needs of the camper or trailer roof surfaces, or easily patches large cracks elsewhere in your RV
- Waterproof Seal: The lap sealant for rv roofs is strong adhesion and waterproof, forming a solid seal at gaps, no need to worry about water leaking from the roof of the RV or house. In order to ensure the quality of the product, it is recommended to use it up immediately after opening. Note: The date marked on the bottle indicates the production date
- All-Weather Performance: Working Temps: -40° F to 200° F. RV sealant and caulking is elastic and breathable, even if the temperature changes, the surface will not crack. Long-lasting service life, no need to reseal frequently
Dicor 501LSW-1 – Reliable Self-Leveling Lap Sealant
Brand: Dicor
Excellent for reinforcing edges and sealing vents on EPDM/TPO roofs.
Dicor 501LSW-1 Self-Leveling Lap Sealant is a trusted choice for creating a secure secondary seal along roof edges, air vents, vent pipes, and screw heads. It adheres firmly to aluminum, mortar, wood, vinyl, galvanized metal, fiberglass, and concrete, providing strong bonding. This sealant is specifically compatible with EPDM and TPO sheeting, which are common on many trailers.
The white color blends well with most roof surfaces, and the self-leveling formula ensures a smooth, even application. It’s designed for maintenance and repair tasks where you need to reinforce existing seals or fill gaps. If you want a reliable lap sealant for spot repairs and edge sealing, this is a proven option.
- Creates secure secondary seal
- Adheres to many materials
- Compatible with EPDM and TPO
- Not for full roof coating
- Requires dry surface to apply
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- Creates a secure, secondary seal along the roof’s edges, air vents, vent pipes and screw heads
- Adheres firmly to aluminum, mortar, wood, vinyl, galvanized metal, fiberglass and concrete
- Compatible with EPDM and TPO sheeting
- Color: White
- Item expires 2 years after manufacturer's stamped date
Buyer’s Guide: What to Consider
Choosing the right sealant protects your trailer from leaks and weather damage. Consider these factors before buying.
- Surface Compatibility: Ensure the sealant bonds with your roof material, such as EPDM, TPO, fiberglass, or aluminum.
- Flexibility & Durability: Look for a flexible seal that moves with temperature changes without cracking or peeling.
- Solar Reflectivity: A solar-reflective coating reduces heat absorption, keeping your trailer cooler and lowering energy costs.
- Ease of Application: Self-leveling formulas spread smoothly for easy application, while brush-on coatings may require more effort.
- Coverage Area: Check coverage rates per gallon to match your trailer size and avoid running out mid-project.
Conclusion
Choosing the right enclosed trailer roof sealant depends on your roof material and project needs. For full roof recoating, Liquid Rubber offers excellent flexibility and solar reflection. For quick seam repairs, Dicor or Kohree self-leveling lap sealants are reliable choices.
Consider BEEST for high coverage on larger trailers. Always match the sealant to your specific roof type for lasting protection.