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Inspect your RV roof at least every 90 days, paying close attention to the membrane, seams, joints, and sealed areas around roof-mounted equipment. Small bubbles or visible spots can be cosmetic, but changes, punctures, and signs of moisture need evaluation. Regular cleaning and prompt sealant maintenance help protect the roof assembly from water intrusion.
A typical roof assembly includes:
The roof described here uses TPO, or thermoplastic polyolefin. Construction and roofing materials vary, so confirm your RV’s roof type before choosing cleaners, sealants, or repair products.
Small air pockets and visible spots can result from the membrane’s manufacturing or installation process. Minor irregularities may also show where small particles are trapped between the membrane and decking.
Do not cut, puncture, or peel back the membrane to investigate a bubble yourself. Photograph the area so you can compare its appearance during future inspections, and ask your dealer to assess anything uncertain.
TPO does not rust or corrode, but it still needs periodic cleaning and inspection.
For Alpha roof membranes, the manufacturer recommends cleaning three to four times per year using its approved methods. Avoid harsh or abrasive cleaners, acetone, and products containing petroleum distillates. Rinse thoroughly as directed.
Routine protective coatings are generally unnecessary for the membrane described here. Do not apply a coating or treatment unless the roofing manufacturer approves it.
At least every 90 days, check:
Look for cracking, shrinkage, gaps, or separation in the sealant. Inspect on schedule and reseal where needed; a 90-day inspection does not mean every seam automatically needs new sealant.
Sun exposure, temperature changes, and weather can accelerate deterioration. Sealant care remains an ongoing owner maintenance responsibility.
For an Alpha roofing system, use the Alpha sealant specified for the installed membrane and application. Your dealer can help identify the correct product.
Follow the product’s surface-preparation and application instructions. Do not substitute household caulk or use silicone products on the roof membrane.
Minor damage can often be repaired with a compatible patch system rather than replacing the entire membrane. The correct repair depends on the damage’s size, location, and whether moisture has affected the underlying assembly.
Contact your dealer promptly if you find:
A surface patch alone may not address damage beneath the membrane. Have suspected water intrusion evaluated before deciding on a repair.
Follow your RV’s roof-access and weight-limit instructions. Do not assume every roof or ladder is intended for walking access.
Roof surfaces can become slippery, especially when wet. Arrange professional inspection or maintenance if you cannot safely reach the area or are unsure how to perform the work.
Review the care instructions from Alpha Systems and schedule your next roof 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.