Mobile RV Storage Commissioning Across Florida

By Jesse Marcer, Founder - Triton RV Repair  |  September 2026

What Florida Heat Does to a Coach in Storage

A Florida RV in outdoor storage between May and October is exposed to a sustained thermal environment that no northern coach ever experiences during a short winter storage period. Interior temperatures in a closed coach in direct Florida sun can reach 155 degrees Fahrenheit. At that temperature, battery electrolyte in flooded lead-acid batteries boils away faster than in normal operation. AGM batteries lose water vapor through their valve-regulated design. The plastic separator in all lead-acid batteries begins to soften, which reduces cycle life. Lithium batteries thermally throttle their protection circuits, but sustained high temperature still ages the cell chemistry faster than the rated service life assumes.

Slide seals - the EPDM or santoprene rubber gaskets that compress against the slide body when rooms are retracted - lose moisture and plasticizers in sustained high heat. A seal that was pliable and sealing correctly in April may be hard and slightly shrunken by October. The first extension of the slide after summer storage can reveal gaps at the corners or the top edge where the hardened seal no longer conforms to the slide frame geometry. Treating seals with a silicone-free conditioner before storage significantly reduces this effect but does not eliminate it in sustained Florida summer conditions.

Tire flat-spotting is a real phenomenon that affects bias-ply and radial tires differently. A coach sitting on tires for six months at correct inflation pressure will develop a slight flat spot at the contact patch that causes a vibration for the first few miles after storage. This resolves as the tire warms up and reshapes. Overinflation before storage - a common recommendation from tire manufacturers for long-term storage - reduces flat-spotting and compensates for the natural pressure drop during the storage period from permeation through the tire carcass.

The Battery Storage Decision

The battery decision before storage has more consequences than any other single preparation step for a Florida coach. A 12-volt house battery system left connected during storage discharges through parasitic loads - propane detector, smoke alarm, radio memory, and the RV's own monitoring system - at rates that typically total 50 to 200 milliamps continuous. At that draw rate, a 100-amp-hour battery is fully discharged in 20 to 80 days. A fully discharged lead-acid battery left in Florida summer heat begins irreversible sulfation within 24 hours. Many coaches brought in for battery replacement after summer storage have batteries that were at adequate capacity in April but were killed by parasitic discharge and sulfation, not by age.

The solution hierarchy, from most to least effective, is: a solar trickle charger with charge controller that maintains the battery at absorption voltage throughout storage; a battery disconnect switch that eliminates parasitic loads and allows the battery to self-discharge at its natural rate (around 3 to 5 percent per month for lead-acid, 1 to 2 percent for lithium) rather than being drained by loads; and regular manual charging visits every four to six weeks. We install the solar trickle system as the preferred solution because it requires no owner intervention and keeps the battery in the best possible condition for reactivation.

Rodent Prevention - A Florida-Specific Priority

Roof rats, palmetto bugs, and squirrels are the primary wildlife threats to stored RVs in Florida, with roof rats being the most damaging. Roof rats are excellent climbers that access coaches through roof vents, exhaust openings, and any gap larger than a half inch. Once inside, they nest in fiberglass insulation, chew through wire harnesses, and contaminate stored bedding and soft goods. The damage from a single rat nesting season can easily exceed $2,000 in wiring repairs alone, to say nothing of the health risk from droppings in the HVAC ducting.

Effective rodent prevention for a stored Florida coach requires closing every opening. Roof vents that cannot be sealed should have hardware cloth installed over the exterior opening - not the mesh screen that comes with most vents, which rats can chew through, but 1/4-inch galvanized hardware cloth that resists gnawing. Exhaust openings for the water heater, furnace, and refrigerator are often overlooked and are primary entry points. Steel wool packed into any gap where wiring or plumbing enters the coach provides additional deterrence at those specific penetrations.

Deterrent sprays and cotton balls infused with peppermint oil provide some additional deterrence but should not be the primary defense - they are supplements to physical exclusion, not substitutes for it. A coach that has had a rodent problem in previous storage seasons should be inspected after storage reactivation for wire chew damage before any systems are powered on, since shorted or damaged wiring in a coach that is being reactivated is a fire risk.

Generator Storage Preparation

A generator stored with stale fuel in the carburetor will not start reliably after months of sitting. Ethanol-blended fuels - which now represent the vast majority of gasoline sold in Florida - begin to phase separate and develop gum deposits in carburetor jets within 30 to 90 days. A generator that is stored without fuel stabilizer or without running the carburetor dry will require carburetor cleaning before it runs cleanly after storage.

The correct procedure before extended storage is to add fuel stabilizer to the tank, run the generator at 50 percent load for 10 minutes to circulate stabilized fuel through the system, then either run it dry (preferably) or leave stabilized fuel in the tank. The oil should be changed before storage rather than after - used oil contains combustion acids that corrode bearings during the storage period if left in the engine. An oil change before storage protects the engine throughout the months it sits and means the generator is ready to run immediately on reactivation without a first oil change.

Roof Inspection Before Storage - Not After

The time to find and seal a roof issue is before the coach goes into storage, not when it comes out in the fall with water stains on the ceiling. Florida's summer thunderstorm season - June through September - brings intense rainfall that will exploit any seam opening that winter and spring may have created. A seam that is 95 percent intact in May can admit several gallons of water in a single intense thunderstorm if the remaining 5 percent of the lap sealant has released.

We include a visual roof inspection during the storage commissioning service specifically because the coach is already on site and the cost of 15 minutes of inspection is trivial compared to the cost of a water damage remediation job. Self-leveling Dicor lap sealant applied to any gap at antenna bases, vent collars, AC unit flanges, or the roof perimeter takes 15 minutes to apply and 24 hours to cure. That 15 minutes of preventive work is the best return on investment available in RV maintenance.

Pricing Reference

Frequently Asked Questions