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Maintaining your RV roof means inspecting the membrane and sealants, cleaning with approved products and addressing damage before water enters the RV. Start by identifying your roof material: the correct sealant, cleaner and repair method depend on the installed membrane. Keystone’s discussion with LJ Lawton of Alpha Systems covers common owner questions, from old sealant and roof bubbles to discoloration and warranty coverage.
Identify the roof membrane and check its manufacturer’s current recommendations before purchasing sealant. Do not assume that a product labeled “RV roof sealant” is compatible with every roof.
Also consider the application:
Alpha Systems specifies compatible Alpha products for its membranes. The correct selection may depend on the membrane, existing sealant and surface being sealed.
If you cannot identify the materials already installed, ask your dealer to confirm them before adding another product. Mixing incompatible materials can complicate the repair.
Not necessarily. Alpha’s published repair procedure distinguishes between loose sealant and sealant that remains firmly attached.
For the applications covered by that procedure, remove loose material without using tools that could puncture the membrane. Sealant that cannot be lifted by hand should remain in place. Clean the repair area with soap and water, let it dry, then apply the specified compatible sealant as directed. Alpha cautions against solvents during this process.
This is not a reason to repeatedly cover an unidentified leak with more sealant. Extensive separation, damaged roofing or recurring leaks require an inspection to determine the cause.
A raised area alone does not establish whether the roof needs repair. Its location, size, condition and changes over time all matter.
Document the concern with photographs and note:
Have your dealer or the membrane manufacturer evaluate the condition before attempting a repair.
Do not puncture, cut or inject adhesive into a bubble as an improvised fix. That can damage an otherwise intact membrane and make the original condition harder to assess.
If you see water intrusion or loose roofing that could worsen during travel, arrange prompt service.
Alpha’s general care guidance recommends cleaning its roof membranes three to four times per year, with inspection during cleaning. Your RV or specific membrane instructions may require additional checks.
Inspect the membrane and the sealant around roof edges, vents, skylights and other attachments. Look for tears, cracking, voids and separation.
Check roof-access requirements before climbing. Wet roofing can be slippery, and not every roof or access method is suitable for owner maintenance. Arrange professional service if safe access is uncertain.
Keep dated photos and records of inspections, cleaning and repairs.
Follow the instructions for your specific membrane. Alpha’s general guidance recommends a non-abrasive household cleaner, such as dish soap, and a medium-bristled brush, followed by thorough rinsing of the roof and sidewalls.
Avoid acetone, petroleum distillates and harsh or highly abrasive cleaners. Alpha also states that its roof membrane does not require routine UV or ozone protectants and cautions that such products can cause damage.
Do not apply a roof coating simply because the surface looks weathered. Confirm that the coating is approved and that any damage has been evaluated first.
Discoloration can have different causes, so appearance alone is not enough to identify the problem.
Begin with the approved cleaning method. If marks remain, photograph them and ask the membrane manufacturer about the next step rather than escalating to stronger chemicals.
Avoid aggressive scrubbing that could damage the surface in an attempt to remove a stain.
Distinguish a cosmetic mark from physical damage. Cuts, cracking, exposed underlying material or an area that remains wet need evaluation. A roof does not have to look newly white to function, but discoloration should not be used to dismiss accompanying damage.
Roof membranes are designed for outdoor exposure, but they still depend on intact seams, sound attachments and maintained sealants.
Branches, sharp objects, incompatible chemicals and neglected openings can compromise the roofing system. Avoid dragging equipment across the roof or placing tools where they could puncture it.
A membrane’s service life or warranty term does not make the entire roof maintenance-free. Sealants, installation materials and roof-mounted components have their own inspection and care requirements.
It may, depending on the membrane and the warranty supplied with your RV. Review the documents that apply to your purchase rather than assuming today’s advertised terms apply retroactively.
For example, Alpha’s published AlphaPly limited warranty covers specified membrane material defects. It distinguishes that coverage from appearance, installation materials, sealants and routine care. It also limits eligibility and available remedies.
A membrane warranty is not automatically coverage for every roof leak, labor charge or related repair.
Before authorizing work you expect to claim, contact the appropriate warranty provider. Have your VIN, purchase information, maintenance records and photographs ready.
Review your Keystone Owner’s Manual and roof manufacturer’s instructions before your next inspection.
Disclaimer: The information contained in this article is deemed to be true and accurate at the time of publication. However, due to the evolving nature of our products and services, there may be changes or updates that occur after this article was published. We encourage users to verify the contents and consult with their dealer or Keystone RV for the most current information. If you have any questions or require further clarification, please do not hesitate to contact your dealer or reach out to Keystone RV directly.