This calculator is designed to help make an informed decision about the potential financial benefit of indoor RV storage. It is built on real-world asset depreciation trends combined with the measurable impact of environmental wear and tear on a recreational vehicle investment.
Here is an explanation of the factors used for the calculation:
Every motorized or towable asset depreciates over time due to normal aging, market updates, and mechanical obsolescence. Our calculator applies a standard baseline depreciation rate to your RV's value assuming it is completely shielded from the elements. This represents the absolute best-case scenario for preserving your investment.
When an RV is stored outdoors, it is subjected to constant UV rays, extreme temperature swings, moisture, and wind. This accelerates physical degradation in ways that directly lower resale and trade-in value, including:
Sun & Seal Damage: UV rays dry out rubber roof membranes, crack window seals, and fade fiberglass gel coats.
Tire Dry Rot: Constant exposure to the elements degrades tire sidewalls prematurely, leading to costly replacements.
Moisture Intrusion: Unprotected exposure increases the risk of hidden leaks that can cause thousands of dollars in structural damage.
To account for this, the calculator adds an accelerated environmental penalty (typically an extra 2.5% to 3% loss in value per year) to the outdoor storage track.
Depreciation doesn't just happen from the sky down; it happens from the ground up. The surface your RV sits on drastically affects its lifespan and resale value:
The Outdoor Risk (Dirt & Gravel): Outdoor lots are frequently dirt or gravel, which constantly radiate moisture upward into your RV's undercarriage. This trapped moisture accelerates rust on the frame, corrodes brake components, and degrades exposed wiring. Furthermore, parking on bare ground or shifting gravel can cause uneven tire load distribution and chemical degradation of the tire rubber.
The Indoor Advantage (Concrete & Epoxy): High-end indoor facilities sometimes utilize solid concrete floors, often sealed with a durable, professionally applied epoxy resin or polyaspartic coating. Concrete may possibly act as a true vapor barrier, blocking ground moisture from rising into your chassis. An epoxy or polyaspartic-coated surface goes a step further: it may possibly help prevent tire staining, stop the tire rubber from leaching vital oils into bare concrete, and may completely eliminate the dust, mud, and grit that inevitably get tracked inside your rig on outdoor lots.
While the difference between indoor and outdoor wear seems minor in year one, depreciation compounds over time. By looking at a 3- to 5-year outlook, the calculator clearly illustrates the "hidden cost" of outdoor storage—proving that what you might save on a cheaper monthly storage lot can quietly cost you thousands of dollars in lost equity when it's time to sell or trade up.
Use our calculator to help preserve your investment! Calculate RV depreciation & compare estimated savings of indoor vs outdoor storage.