How to Reseal Your RV Roof the Right Way

Your RV roof is the first line of defense against rain, sun, and road debris. Over time, seals and seams can dry out, crack, or separate—leading to leaks and costly water damage. Knowing how to reseal your RV roof the right way helps you protect your investment and avoid major repairs down the road.

Inspect Your Roof at Least Every 90 Days

Before you reseal, you need to inspect. Carefully check:

  • Roof seams and edges
  • Around roof vents, skylights, and A/C units
  • Anywhere sealant or caulking was previously applied

Look for cracking, peeling, bubbling, or gaps in the sealant. Use a safe, stable ladder and avoid walking on unsupported sections.

If you’re not sure what you’re seeing, Daisy RV offers professional roof inspections and can advise if resealing is needed.

Choose the Right Sealant for Your Roof Type

Different RV roof materials require different types of sealant. Common roof types include:

  • EPDM rubber – Use self-leveling lap sealant
  • TPO rubber – Similar to EPDM, but check for compatibility
  • Fiberglass or aluminum – Use a non-sag, flexible sealant

Avoid using household silicone—it doesn’t adhere properly to RV surfaces. Instead, use RV-specific products like Dicor or Geocel for a long-lasting hold.

Visit Daisy RV for high-quality RV sealants and expert advice on which to use.

Clean the Area Thoroughly Before Sealing

To reseal your RV roof the right way, preparation is key. Start by:

  • Cleaning the roof with soap and water
  • Removing loose or flaking old sealant
  • Wiping down the area with a solvent like denatured alcohol

Make sure the surface is dry before applying any new sealant. This ensures proper bonding and prevents water from being trapped underneath.

Apply Sealant to Seams, Vents, and Accessories

Use self-leveling lap sealant on horizontal surfaces and non-sag sealant for vertical areas. Apply:

  • In a continuous, overlapping bead
  • Around the bases of vents, antennas, skylights, and roof edges
  • Along seams or screw lines where water might enter

Smooth it out if needed and allow proper curing time—usually 24 to 48 hours depending on weather.

If you’d rather have it done professionally, Daisy RV provides complete roof resealing services with fast turnaround.

Maintain and Reapply as Needed

Even after resealing, monitor your roof regularly. Over time, UV exposure and weather will wear down sealants.

  • Reapply every 1–2 years (or as needed)
  • Keep debris off the roof to prevent damage
  • Consider using a UV-protectant roof coating for extra defense

Learning how to reseal your RV roof the right way ensures your rig stays dry, protected, and road-ready in any season.

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