How often should I reseal my RV roof?

You should reseal your RV roof every 1 to 3 years depending on usage and climate. Inspect the roof every 6 months for signs of cracking or damage.

What’s the best sealant for RV roofs?

Dicor Self-Leveling Lap Sealant is one of the most trusted options for sealing RV roofs. Eternabond Roof Repair Tape is excellent for quick and lasting repairs.

Can I use Flex Seal on an RV roof?

Yes, Flex Seal can be used for emergency repairs, but dedicated RV roof coatings like Dicor or Liquid Rubber are better for long-term use.

Is professional roof replacement worth it?

Yes, if there is extensive damage or mold. For localized issues, DIY repairs are often sufficient.

RV Roof Maintenance and Repair: Ultimate Guide for Leak Prevention and Long-Term Protection

Posted by Happy Campers Store on Jun 9th 2025

Maintaining your RV’s roof is essential to preventing costly water damage. In this detailed guide, we’ll show you how to inspect, seal, and protect your RV roof—plus share expert product recommendations for 2025.

Why RV Roof Maintenance Is So Important

Your RV roof is constantly exposed to harsh elements like UV rays, rain, and road debris. Without regular care, damage can occur quickly. This leads to leaks, mold, structural issues, and even total roof replacement. Routine inspections and proper sealing protect your investment and give you peace of mind while traveling.

Common RV Roof Issues and How to Fix Them

1. Cracked or Deteriorated Sealant

Issue: UV rays and weathering break down sealants around vents, skylights, and edges.

Fix: Remove old sealant, clean the surface, and apply Dicor Self-Leveling Lap Sealant generously over the gap and surrounding area.

2. Punctures and Tears

Issue: Hail, branches, or dropped items can puncture the roof membrane.

Fix: For small holes, apply Eternabond Roof Repair Tape. For large tears, clean the area and use a liquid rubber coating.

3. Seam Separation

Issue: Seams around the roof can split due to shifting and movement.

Fix: Clean the seams and apply Geocel Pro Flex RV Sealant to prevent leaks and maintain flexibility.

4. Water Pooling

Issue: Low-slope roofs may develop sagging spots that trap water.

Fix: Clear debris from gutters, reinforce sagging areas, and apply a reflective coating to reduce heat and degradation.

How to Seal or Reseal Your RV Roof: Step-by-Step

1. Inspect the Roof

Look for cracks, discoloration, or soft areas. Use a flashlight to check for water stains inside your RV.

2. Clean the Roof

Use mild soap and water with a soft-bristle brush. Avoid pressure washing. Optional: Use Dicor Rubber Roof Cleaner.

3. Remove Old Sealant

Use a plastic scraper to avoid damage. Thoroughly clean the area before resealing.

4. Apply New Sealant or Coating

Use a self-leveling or non-sag sealant as needed. For full roof applications, roll on a liquid rubber coating and let cure per product instructions.

Top-Rated RV Roof Sealants and Coatings (2025)

Product	Key Benefits
Dicor Self-Leveling Lap Sealant	Ideal for sealing around vents and fixtures. UV-stable and flexible.
Eternabond Roof Repair Tape	Instant waterproof fix for punctures, tears, and seams.
Geocel Pro Flex RV Sealant	Flexible, UV-resistant sealant for high-vibration areas.
Liquid Rubber RV Roof Coating	Eco-friendly, seamless coating. Solar reflective and waterproof.
Lanco Ultra Siliconizer	Reflective coating that helps reduce interior temperatures.
Sikaflex 252 Urethane Sealant	Heavy-duty adhesive sealant ideal for structural bonding.
AP Products Roof Sealant	High-performance sealant with superior longevity and flexibility.

Here's a great video that shows you how to apply Dicor Self‑Leveling Lap Sealant, demonstrating proper surface prep (cleaning & old sealant removal) and showing you how to apply the sealant neatly around seams and fixtures.

Preventative RV Roof Maintenance Tips

Inspect your roof every 6 months or after long trips
Clean the roof regularly to remove dirt and debris
Check sealants around vents, fans, and appliances
Apply UV-reflective coatings every 2–3 years
Cover your RV or store it under shelter during off-seasons

DIY vs. Professional Roof Repairs

DIY repairs are perfect for sealing cracks, resealing seams, and applying protective coatings.

Professional service is recommended for structural issues, full roof replacements, or leaks you can’t locate.

FAQs About RV Roof Repair and Maintenance

How often should I reseal my RV roof?: Every 1–3 years depending on roof type and exposure. Inspect twice a year for signs of deterioration.
What’s the best sealant for RV roofs?: Dicor Self-Leveling Lap Sealant is widely trusted for horizontal applications. Eternabond Tape is excellent for emergency repairs.
Can I use Flex Seal on an RV roof?: Yes, for short-term fixes. Use dedicated RV roof products for long-term durability.
Is professional roof replacement worth it?: If over half the roof is compromised or there’s internal water damage, replacement may be necessary.

Conclusion: Keep Your RV Roof Leak-Free and Strong

Your RV roof is your first defense against the elements. With regular inspections, quality sealants, and the right tools, you can prevent leaks and extend the lifespan of your RV. Don’t wait until a leak appears—maintain your RV roof proactively and travel worry-free.