1. Use Moisture Absorbers

  • Desiccant Packs: Place silica gel packets, DampRid, or other desiccant products throughout the unit to absorb excess moisture.
  • Charcoal Briquettes: Activated charcoal also absorbs moisture, and you can place open bags in the unit for low-cost dehumidifying.

2. Cover the Floor with a Moisture Barrier

  • Use Plastic Sheeting or Pallets: Lay plastic sheeting on the floor as a moisture barrier, and place items on pallets to keep them off the ground and reduce exposure to any potential dampness from the floor.
  • Avoid Cardboard Boxes on the Floor: Cardboard easily absorbs moisture. Store items in plastic bins, especially those directly on the ground.

3. Ensure Proper Ventilation

  • Leave Small Gaps Between Items and Walls: Keep items a few inches away from the unit walls to allow airflow and reduce the chance of moisture buildup in closed spaces.
  • Stack Carefully: Avoid overpacking, which can trap moisture. Use shelves or stack bins in a way that promotes air circulation around all items.

4. Cover Items with Breathable Materials

  • Avoid Plastic Wrap: Instead of covering items in plastic (which traps moisture), use cotton sheets, moving blankets, or other breathable materials that allow moisture to escape.
  • Use Mold-Resistant Covers: Mold-resistant covers or wraps on upholstered furniture, mattresses, and other sensitive items offer additional protection.

5. Inspect for Leaks and Dampness

  • Check Unit for Leaks: If it rains often in your area during fall, inspect the storage unit for leaks, cracks, or gaps. Report any structural issues to the facility manager.
  • Seal Items Properly: For smaller items, use airtight bins or bags to prevent moisture exposure. Consider vacuum-sealed bags for fabrics to keep out both air and moisture.

6. Use a Dehumidifier if Allowed

  • Consider a Portable Dehumidifier: If your facility allows it and your unit has access to power, use a dehumidifier on a timer to keep humidity levels down.
  • Rechargeable Dehumidifier: Some facilities allow non-electric options, like rechargeable dehumidifiers, which use silica gel and can be “recharged” by drying out periodically.

7. Visit and Check the Unit Regularly

  • Inspect for Condensation: Check for signs of moisture on bins, walls, and flooring.
  • Refresh Moisture Absorbers: Replace or “recharge” moisture-absorbing products as needed.