Before you begin: Use your RV and component manuals for model-specific procedures. Stop and use a qualified professional for electrical, propane, structural, or other work beyond your training.
Identify the roof before buying a product
A roof may be TPO, EPDM, fiberglass, aluminum, PVC, or a manufacturer-specific system. Products advertised for “RV roofs” are not automatically compatible with every membrane or sealant. Check the RV manufacturer’s documentation or ask the maker to identify the material.
If you cannot verify the material, postpone coatings and solvent-based cleaners. An incorrect product can create more work than an untreated but otherwise sound roof.
Separate cleaning from treatment
Routine cleaning removes dirt that hides cracks and holds moisture. A protective treatment or coating changes the roof surface and should be considered only when the roof maker specifies it or when a qualified inspection identifies a reason.
A shiny coating is not a substitute for repairing a separated seam, a puncture, or water-damaged substrate. Treat the underlying fault first.
Inspect high-risk details
Look around vents, skylights, antennas, AC openings, front and rear cap joints, and edges. Photograph lifting sealant, cracking, unusual soft spots, or stains inside. Some roof membranes require special sealants at horizontal seams while vertical joints use another type.
Never walk on a roof unless the RV maker confirms it is walkable and you can access it safely. A ladder and inspection from the perimeter may be the safer choice.
Choose a compatible system
Read the roof, coating, and sealant manufacturers’ instructions together. Confirm preparation, temperature range, dry time, coverage, and whether old coating must be removed. Test products only as the manufacturer permits.
If the roof is under warranty, ask whether a treatment affects coverage. Keep receipts and product names in the maintenance record.
Maintain after treatment
Inspect and clean at the interval in your roof manual, especially after severe weather and storage. Recheck repaired seams after the product cures and again after travel. A coating does not eliminate future inspections.
Manufacturer manuals & further reading
Use these official resources to find details for your equipment. Match the brand, model, and revision; another RV’s procedure may not apply to yours.
- Dicor roof care and maintenance
Find care information for listed Dicor roofing products. Confirm your membrane and sealant first; the same cleaner or coating is not suitable for every RV roof.
This guide is general educational information, not a substitute for your RV’s manuals or professional inspection.