How to Winterize Your RV’s Exterior and Interior Surfaces
Freezing temperatures, road salt, and moisture can take a major toll on your RV if it’s not properly protected for winter. Whether you plan to store your rig or travel through cold climates, winterizing your RV’s surfaces will prevent cracking, oxidation, and costly repairs down the road. This step-by-step guide shows you how to safely clean, seal, and protect both the exterior and interior of your RV before winter sets in.
Estimated Reading Time: ~12 minutes
Why Winterization Matters
Winter brings freezing temperatures, road salt, and constant moisture — a dangerous combo for RV finishes and interiors. Without proper protection, your paint can fade, your seals can dry out, and your interior can develop mold and mildew. Taking time now to clean and seal every surface helps you avoid expensive restoration in the spring.
RV Exterior Winterization
Step 1: Wash Away Dirt and Salt
Start with a full exterior wash using The Super Soaper. Mix 4 ounces in a foam cannon or bucket, pre-soak the surface, and allow it to dwell for a few minutes. Rinse thoroughly to remove all grime, bugs, and especially road salt that can cause corrosion during storage.
Step 2: Dry and Inspect
Use a Massive Drying Towel to prevent water spots. While drying, check seams, windows, and vents for cracks or leaks. Catching these early prevents freeze expansion damage later.
Step 3: Protect Paint and Trim
Once clean, apply Tough As Shell Ceramic Spray to all painted, fiberglass, and plastic trim areas. This spray-on coating creates a hydrophobic, UV-resistant shield that prevents oxidation, fading, and grime buildup throughout winter storage.
Protect Your RV All Winter Long
Tough As Shell Ceramic Spray seals paint, trim, and fiberglass with a slick, durable coating that resists salt, UV rays, and oxidation for months.
Shop Tough As Shell Buy on AmazonStep 4: Clean and Protect Wheels and Undercarriage
Spray Pure Magic Cleaner on wheels, fenders, and undercarriage components to remove any remaining salt or brake dust. Once rinsed, apply a light mist of Tough As Shell for added corrosion resistance underneath your rig.
Step 5: Cover and Seal
Use a breathable RV cover to protect from snow, ice, and debris. Avoid fully waterproof covers, which can trap condensation underneath. If storing outdoors, park on dry gravel and block tires to prevent flat spots.
RV Interior Winterization
Step 1: Clean All Surfaces
Before storage, deep clean the interior with Complete Cabin Cleaner. Spray on dashboards, seats, panels, and walls. Wipe with microfiber towels or Scrub Buddy Pads to remove built-up grime and residues. This prevents bacteria or mildew growth during months of closure.
Safe and Effective Interior Protection
Complete Cabin Cleaner disinfects and refreshes all RV interior surfaces, leaving a matte, non-greasy finish perfect for long-term storage.
Shop Complete Cabin Cleaner Buy on AmazonStep 2: Eliminate Moisture
Use moisture absorbers or dehumidifier packs throughout the cabin to prevent mildew. Focus on cabinets, closets, and under beds where condensation can build up unnoticed.
Step 3: Clean Carpets and Upholstery
Vacuum all fabric surfaces and spot-treat with Complete Cabin Cleaner as needed. Allow everything to dry completely before closing up your RV for the season.
Step 4: Deodorize and Refresh
Place a few Jimbo’s Air Freshies throughout your RV to keep it smelling clean all winter. Citrus or linen scents work great for long storage periods.
Step 5: Inspect and Secure
Check seals around windows and doors. Apply silicone-safe conditioner to keep rubber from cracking. Make sure all windows and vents are closed but not overly tightened to allow light airflow.
Winter RV Surface Protection Comparison Chart
| Surface Area | Recommended Product | Protection Type | Reapply Frequency |
|---|---|---|---|
| Paint & Trim | Tough As Shell | UV & Salt Barrier | Every 6 months |
| Interior Vinyl/Plastic | Complete Cabin Cleaner | Antimicrobial Protection | Before storage |
| Wheels & Undercarriage | Pure Magic Cleaner | Corrosion Removal | Each wash |
Pro Tips for Winter Storage
- → Wash and apply ceramic protection before parking your RV for the season.
- → Keep the roof clean to prevent snow buildup and staining.
- → Disconnect the battery and store it in a warm, dry area.
- → Leave cabinet doors slightly open for airflow.
- → Avoid covering the RV immediately after washing — let it fully dry first.
Related Reading
- Prepping Your RV for Summer Travel: Full Cleaning Checklist
- How to Clean Stainless Steel and Chrome on an RV Exterior
- How to Restore Faded RV Decals Without Peeling
- How to Prevent Mold and Mildew in RV Interiors
- The Best Way to Keep an RV Clean While Traveling
FAQs
When should I start winterizing my RV?
Start once temperatures consistently drop below 50°F. Early preparation prevents freezing damage to both exterior and interior materials.
Can I use regular wax instead of ceramic spray?
Traditional wax offers some protection, but Tough As Shell Ceramic Spray lasts far longer and provides stronger UV and salt resistance.
Do I need to clean my RV before storage?
Yes — dirt, bugs, and salt can cause permanent stains and corrosion if left all winter. Always clean thoroughly before covering.
What’s the best way to prevent mold inside an RV during winter?
Deep clean with Complete Cabin Cleaner, then place moisture absorbers throughout the interior to keep humidity low.
Is it safe to use ceramic spray on decals and fiberglass?
Absolutely. Tough As Shell is safe on paint, fiberglass, vinyl, and all exterior plastics.
