Ziollo RV Roof Sealant 1 Gallon White — 100% Silicone Waterproof Coating, Reflective & Flexible

Ziollo RV Roof Sealant is a one-gallon, 100% silicone liquid rubber coating that creates a permanent, waterproof, flexible membrane for RVs, campers, motorhomes, and travel trailers.

Designed for DIYers and professional handymen alike, this white silicone roof coating bonds to EPDM, metal, fiberglass and most common RV roof materials to stop leaks and simplify maintenance. Its reflective white finish improves heat rejection, the self-leveling formula spreads smoothly for quick coverage, and one coat is typically enough to form a durable watertight layer (TPO requires primer). Backed by a 10-year warranty, the product integrates with complementary Ziollo preparation and repair items—cleaner, seam tape, lap sealant, and primer—for a complete roof restoration system.

How does Ziollo RV Roof Sealant stop leaks fast?

The 100% silicone composition cures into a seamless rubberized membrane that adheres to most RV roofing substrates and bridges hairline cracks and seams. Because the formula is self-leveling and highly elastic, it fills gaps and maintains adhesion through expansion and contraction, eliminating multiple coats in many cases. TPO surfaces should be primed first for optimal bonding.

• Forms a continuous, monolithic waterproof layer
• Self-leveling to seal small gaps and fasteners
• No primer needed on EPDM, metal and fiberglass (TPO exception)
• Covers roughly 60 sq ft per gallon depending on surface texture

Will this coating help keep my RV cooler in summer?

The coating’s bright, reflective white finish lowers solar heat gain on the roof, which can reduce interior temperatures and cooling load. While results vary with climate and roof condition, many users see noticeable temperature reductions that improve cabin comfort and lessen air conditioner runtime. This benefit extends the life of interior components by moderating heat stress.

• Reflective white finish reduces roof heat absorption
• Helps lower interior temperatures and cooling demand
• Rubberized surface resists UV degradation
• Saves effort and energy during hot-weather trips

How durable and flexible is the silicone coating over seasons?

Ziollo’s silicone formula is engineered to remain flexible across wide temperature ranges, resisting cracking and splitting where ordinary paints fail. It stretches and rebounds with roof movement caused by temperature swings, road vibration, and settling, making it suitable for year-round use from cold winters to hot summers. Regular inspection and spot repairs will extend the membrane’s service life.

• High elasticity prevents cracking through thermal cycling
• Adapts to expansion and contraction of roofing materials
• UV-resistant to minimize breakdown over time
• Recommended as part of seasonal maintenance checks

What prep and application steps ensure best results?

Preparation is key: clean the roof thoroughly with Ziollo RV Roof Cleaner, repair problem areas with Ziollo Paintable Seam Tape or RV Roof Tape and use Ziollo Lap Sealant on vulnerable seams. For TPO roofs apply Ziollo TPO Primer before coating. Apply by roller, brush or airless sprayer for an even layer and allow the recommended cure time before exposure to rain or heavy use.

• Degrease and remove loose material with the recommended cleaner
• Reinforce seams and fastener areas with seam tape or lap sealant
• Prime TPO surfaces prior to coating for adhesion
• Apply evenly with roller, brush, or sprayer; typical coverage ~60 sq ft/gal

Who is this for: Ziollo RV Roof Sealant suits RV owners, weekend warriors, and fleet technicians who want a fast, long-lasting waterproof solution that reduces heat gain and simplifies maintenance. Ideal for pop-up campers, trailers, Class A/B/C motorhomes, and travel trailers, it’s especially useful for people who prefer a high-performance DIY repair system that pairs with targeted Ziollo prep supplies for reliable, long-term protection.