RV Roof Inspection & Maintenance
The first step in any proper RV roof inspection is to grab a sturdy stepladder and examine the overall condition of the roof membrane, seams, vents, and sealant beads.
Walking Safely on the Roof
If inspecting a seamed aluminum roof (with crosswise seams every 48 inches), lay wide plywood strips or boards lengthwise to span the underlying rafters and distribute your weight evenly. Rubber (EPDM/TPO) and fiberglass roofs generally feature a 3/16" to 1/2" plywood substrate supporting your weight, but always inspect shoe treads for trapped gravel or sharp stones before stepping onto the membrane.
Sealant Care & Inspection Intervals
ARRINGTON'S RVs - PO Box 209 Addison, AL 35540
1-256-747-2222, FAX 1-256-747-4482
twice a year
Choosing the Right Sealant
- Rubber Roofs (EPDM/TPO):Always use a high-grade self-leveling lap sealant compatible with rubber membranes, such as Dicor Self-Leveling Lap Sealant . Never apply silicone or petroleum-based caulks on rubber membranes.
- Aluminum & Fiberglass Roofs:Use a fiber-reinforced roof coating or elastomeric seam sealant. Thoroughly scrape away loose, flaking old coating, wire-brush the surface clean, and wash with detergent before applying new coating.
Remember: Leaks rarely originate from the roof membrane material itself—they almost always occur at roof penetrations (plumbing vents, skylights, AC gaskets, and termination rails) where sealant has failed!