How to Reseal an RV Roof the Right Way: 1 Minute to a Leak-Free RV Roof

Resealing an RV roof is crucial to protect your vehicle from leaks, water damage, and unnecessary repairs down the road. Whether you have a rubber (EPDM or TPO), fiberglass, or metal roof, ensuring a proper seal will increase the longevity of your RV and improve comfort during your travels. Here's a step-by-step guide to reseal your RV roof the right way.

1. Inspect the Roof Thoroughly

Start by cleaning debris and inspecting the roof surface. Look for any cracked, dried, or missing caulk, loose seams, tears, or punctures. Pay close attention to areas around vents, skylights, A/C units, and edges. Take clear photos for reference before proceeding.

2. Remove Old Sealant

Carefully scrape away deteriorated or loose sealant using a plastic putty knife. Avoid damaging the roofing material—gentleness is key here. Clean the exposed area with a mild, non-abrasive cleaner to remove dirt and residues, ensuring the new sealant will adhere properly.

3. Choose the Correct Sealant

Match your sealant to your RV roof type (e.g., Dicor Lap Sealant or Eternabond tape for rubber roofs, self-leveling silicone or acrylic for fiberglass and metal). The right sealant guarantees performance and longevity.

4. Apply New Sealant

Apply your chosen sealant generously along seams, around fixtures, and over any repaired or exposed areas. If using tape, press firmly to ensure a watertight bond. For liquid sealants, use a caulk gun and smooth the application with a finger or tool. Allow ample drying time (usually 24–48 hours), checking manufacturer recommendations for curing.

5. Test the Seal

Once dried, gently spray water over the sealed areas or wait for a rainy day to check for leaks. Inspect both the exterior and interior for moisture or signs of water intrusion.

As a designer, I understand how even functional tasks such as roof resealing connect with the overall layout and usability of your RV’s interior space. When planning a renovation or even making small improvements, considering a thorough roof reseal should be integrated with a broader approach to RV interior design. This not only protects your investment but also sets the stage for impactful upgrades inside.

Tips 1:

Perform regular roof inspections (twice a year) to catch issues early and minimize costly repairs. For best results, use protective gloves and prioritize safety when working on the roof. Keep a maintenance log for reference.

FAQ

Q: How often should I reseal my RV roof?

A: It’s recommended to inspect and touch up your RV roof’s seams and sealant every 6–12 months, with a complete reseal every 3–5 years depending on material and exposure conditions.

Q: What is the best sealant for RV roofs?

A: The ideal sealant depends on roof type. Dicor Lap Sealant is great for rubber roofs, while silicone or acrylic sealants are often best for fiberglass or metal.

Q: Can I reseal my RV roof myself, or should I hire a professional?

A: If comfortable with DIY projects and ladder safety, resealing can be done yourself. For extensive damage or uncertainty, consider professional help for best results.

Q: How do I clean my RV roof before resealing?

A: Use a mild soap and water solution, a soft brush, and rinse thoroughly. Ensure the roof is dry before applying new sealant.

Q: What signs indicate my RV roof needs to be resealed?

A: Look for peeling or missing sealant, visible gaps along seams, soft spots, discoloration, or evidence of water leaks inside the RV.