Leaks start small
Most RV roof leaks start at the sealant around vents, skylights, antennas, AC units, and the front and rear caps. That sealant dries out and cracks from sun and road vibration, and water slips underneath.
Why they get expensive
RV roofs and walls are built with wood and insulation that soak up water. By the time you see a stain on the ceiling, the damage can extend well beyond it. Delamination and rot are costly to repair.
Warning signs
Look for cracked or peeling sealant, chalky white streaks running down the sides, soft spots when you press on the roof, musty smells, and stains or bubbles on the ceiling or walls.
The fix
The roof is cleaned, old failing sealant is removed or prepped, seams and penetrations are resealed, and a coating made for the roof material is applied over the whole surface. That protects the membrane from UV and gives one continuous layer against water.
Make it part of your routine
Check the roof at least twice a year and before and after storage season. Catching a cracked seam early costs very little compared to rebuilding a roof.
Related service
RV Roof Coatings