6 Waterproof Equipment Covers For Outdoor Van Storage Tips

Storing gear outside a van requires a delicate balance between accessibility and absolute weather resistance. Exposure to road grime, relentless UV rays, and moisture will degrade even the most expensive equipment if left unprotected during storage. Choosing the right covers transforms how gear is managed, ensuring that every item remains trail-ready the moment the engine starts.

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King Bird Cargo Carrier Bag: Best Hitch Mount Bag

The King Bird Cargo Carrier Bag is the gold standard for those who utilize external hitch-mounted platforms. It features a heavy-duty, water-resistant material with heat-sealed seams that effectively prevent moisture intrusion during highway driving. If the priority is keeping gear bone-dry while moving through heavy rain, this bag is a non-negotiable addition to the setup.

This carrier is best suited for nomads who frequently store bulky items like sleeping pads, camping chairs, or extra duffel bags outside the living space. Its soft-sided design allows for efficient packing, though it requires careful arrangement to prevent shifting during transit.

Avoid this product if looking for a permanent, hard-shell storage solution, as soft bags do not provide the same level of security against theft. For those who need a flexible, reliable barrier against the elements for external racks, this is a clear winner.

RoofBag Rooftop Cargo Carrier: Best for Any Roof

The RoofBag Rooftop Cargo Carrier stands out because it functions effectively whether the van has a roof rack or a bare roof. Its unique strap design loops through the door frame, making it one of the most versatile options available for van lifers without expensive mounting hardware.

The heavy-duty, waterproof polyester material is coated with vinyl to repel water on contact. It is ideal for storing lightweight but high-volume items like extra bedding or seasonal clothing that would otherwise clutter the limited interior.

This is the right choice for the minimalist who wants extra storage capacity without the aerodynamic drag or cost of a permanent hard box. While effective, ensure the bag is cinched tightly to prevent wind flapping, which can cause premature material wear over long periods.

TeamObsidian Bike Cover: Best for Rack Protection

Bicycles are prone to rapid mechanical degradation when exposed to road salt and moisture on a rear-mounted rack. The TeamObsidian Bike Cover provides a tailored fit that prevents the “sail effect” caused by wind, which is a common failure point for cheaper, universal covers.

Beyond water resistance, this cover utilizes UV-resistant fabric that prevents sun bleaching on saddles and grips. It is designed for those who view their bikes as essential tools rather than accessories and refuse to compromise on their longevity.

If the bike rack sits directly behind the exhaust pipe, verify that the cover material is heat-resistant before installation. This cover is a necessary investment for anyone traveling through coastal environments where salt-air corrosion is a constant threat to bicycle drivetrains.

Bestop Spare Tire Cover: Best for Durability

Spare tires mounted to rear ladders or swing-away carriers are constant targets for environmental decay. The Bestop Spare Tire Cover uses industrial-grade vinyl that resists cracking even in sub-zero temperatures, providing a long-term protective shield.

This product is perfect for the off-road enthusiast who needs equipment that can handle gravel, mud, and extreme temperature fluctuations. Its snug fit prevents wind from catching the material, which significantly extends the lifespan of both the cover and the tire rubber itself.

While it is more expensive than basic canvas alternatives, the durability of the vinyl justifies the price point. For those who prioritize a “set it and forget it” approach to exterior maintenance, this is the superior option.

Champion Storm Shield: Best Generator Cover

Generators are vital for off-grid power, but their sensitive electronics are vulnerable to humidity and rain. The Champion Storm Shield is specifically engineered to protect the generator while it is in operation, allowing for ventilation without compromising waterproofing.

This cover is a specialized tool, not a generic tarp. It is the only choice for those who need to maintain power security during unpredictable storms. It eliminates the risk of short-circuits caused by driving rain while keeping the generator accessible for quick use.

While this cover is specific to certain model dimensions, its value as an insurance policy for a expensive generator cannot be overstated. Anyone relying on a generator for essential power needs should consider this a mandatory upgrade.

Classic Accessories Propane Cover: Best Value

Propane tanks often feature exposed valves and connectors that are susceptible to rust and debris buildup. The Classic Accessories Propane Cover offers a straightforward, affordable way to shield the tank assembly from rain and sunlight without adding unnecessary weight.

The elasticized hem provides a secure fit that stays in place even at highway speeds. It is an ideal entry-level accessory for those looking to tidy up their exterior storage aesthetic while adding a layer of weather protection.

While it lacks the heavy-duty reinforced stitching of premium tactical gear, it performs its primary function with reliability. For the budget-conscious traveler looking to prevent rust on exposed fittings, this cover provides excellent value.

How to Pick the Right Cover Material & Size

Selecting a cover requires understanding the difference between water-resistant and waterproof. Always look for marine-grade vinyl or PVC-coated polyester for true moisture protection. Lightweight nylon might block sun, but it will eventually soak through during a sustained downpour.

Sizing is equally critical; a cover that is too large will flap in the wind, causing abrasion against the equipment and eventual tearing. A cover that is too small places stress on the seams and will inevitably fail at the stress points.

• Measure twice: Include the dimensions of any mounting brackets or handles in the total calculation.
• Check weight: Heavier fabrics offer better protection but require more effort to store when not in use.
• Identify UV ratings: If the vehicle stays in desert environments, prioritize UV-treated materials to prevent rapid brittleness.

Securing Covers Against Wind Rain and Theft

Wind is the primary enemy of any outdoor cover. Use bungee cords or heavy-duty webbing straps to pull the cover flush against the gear, eliminating air pockets that act like sails. If the cover doesn’t include integrated tie-downs, install aftermarket D-rings or grommets to ensure a tight fit.

For security, many gear covers can be locked in place with cable locks run through reinforced eyelets. While no cover provides total security, making it difficult to quickly remove the cover acts as a significant deterrent to opportunistic theft.

• Avoid flapping: Use additional velcro straps or tension bungees to keep excess material secure.
• Anchor points: Ensure every cover is attached to the vehicle or rack, not just the equipment itself.
• Visibility: Use reflective tape on black covers to avoid accidental collisions in dark campsites.

Waterproof Cover Care: Cleaning and Storage

Waterproof covers accumulate dirt, sap, and salt, all of which compromise the integrity of the waterproofing membrane over time. Clean these covers seasonally using mild soap and a soft-bristled brush, avoiding harsh detergents that strip away factory-applied coatings.

Never store a cover while it is damp, as this is the fastest way to invite mold growth. If a cover must be packed away during a rainy transit, deploy it again at the first sign of sun to allow for complete air-drying.

• Rinse thoroughly: Remove all soap residue to prevent fabric degradation.
• Drying: Hang covers in a shaded, well-ventilated area rather than direct sun to avoid UV damage while drying.
• Repair: Use waterproof repair tape for minor tears to keep the overall barrier intact.

Preventing Mold and Mildew Under Your Covers

Condensation is an unavoidable byproduct of temperature shifts, especially in humid or coastal climates. Even the most waterproof cover can trap moisture underneath, creating a breeding ground for mold. To mitigate this, ensure there is some level of airflow beneath the cover whenever possible.

If the equipment will be stored for extended periods, place a moisture-absorbing desiccant pack inside the bag or wrap it in a breathable layer before applying the waterproof cover. Regularly inspect the underside of your gear to catch early signs of moisture buildup before it leads to structural damage.

• Ventilation: If the gear allows, leave a small gap at the bottom of the cover for air circulation.
• Off-ground storage: Keep equipment on pallets or racks to prevent moisture wicking from the ground.
• Observation: Check the underside of covers after every major rain event to confirm the moisture barrier is holding.

Investing in quality covers is the most effective way to extend the lifespan of exterior gear. By matching the right material to the specific equipment and maintaining these barriers with consistent care, you preserve the functionality and appearance of your van’s exterior accessories for years to come.