Mold, moisture, and humidity damage are some of the most common problems in storage units. The good news? Most of these issues are preventable with the right preparation and precautions.
Here's how to protect your belongings from moisture-related damage.
Understanding the Problem
Moisture damage in storage units typically comes from:
- Humidity — High humidity levels in the air
- Condensation — Moisture forming on surfaces when temperatures change
- Leaks — Water entering the unit from outside
- Wet items — Storing items that are already damp or wet
Prevention Strategies
1. Use Climate-Controlled Storage
Climate-controlled units maintain consistent temperature and humidity levels, preventing condensation and mold growth. This is the best protection for valuable or sensitive items.
2. Never Store Wet or Damp Items
Always make sure items are completely dry before storing them. Even slightly damp items can cause mold and mildew to spread.
3. Use Desiccants
Silica gel packets, moisture absorbers, or DampRid can help reduce humidity in your unit. Place them throughout your unit, especially in boxes with sensitive items.
4. Elevate Items Off the Floor
Use pallets, wooden boards, or plastic shelving to keep items off the floor. This prevents damage from any potential leaks or moisture on the floor.
5. Use Plastic Bins Instead of Cardboard
Plastic bins are waterproof and protect items from moisture better than cardboard boxes. They also prevent pests from getting in.
6. Leave Air Space
Don't pack items too tightly. Leave some space for air to circulate, which helps prevent condensation.
7. Wrap Furniture Properly
Use breathable covers (like cotton sheets) rather than plastic wrap, which can trap moisture. If you must use plastic, leave it loose to allow air circulation.
Winnipeg-Specific Tips
Winnipeg's climate challenges:
- High summer humidity — Can cause condensation and mold
- Extreme temperature swings — Can cause condensation when warm air meets cold surfaces
- Winter moisture — Snow and ice can track moisture into units
For valuable items in Winnipeg, climate-controlled storage is highly recommended.
What to Do If You Find Mold or Moisture
Immediate steps:
- Remove affected items — Get them out of the unit immediately
- Dry items completely — Use fans, dehumidifiers, or air them out
- Clean affected surfaces — Use mold-killing cleaners
- Check for leaks — Inspect the unit for water entry points
- Contact the facility — Report any leaks or issues immediately
Items Most at Risk
These items are particularly vulnerable to moisture damage:
- Wooden furniture — Can warp, crack, or develop mold
- Electronics — Moisture can cause corrosion and permanent damage
- Documents and photos — Can develop mold, yellow, or deteriorate
- Clothing and fabrics — Can develop mold and mildew
- Leather items — Can develop mold and deteriorate
- Musical instruments — Can warp, crack, or develop mold
Regular Maintenance
Even if you're storing long-term, check on your unit periodically:
- Visit every 3-6 months — Check for signs of moisture or damage
- Look for leaks — Check walls, ceiling, and floor
- Check for pests — Look for signs of bugs or rodents
- Replace desiccants — If using moisture absorbers, replace them regularly
- Inspect items — Check a few boxes to ensure everything is dry
The Bottom Line
Preventing moisture damage is mostly about preparation and choosing the right storage solution. Use climate control for valuable items, keep items dry before storing, use proper containers, and check on your unit regularly.
At East Side Self Storage, we maintain our facilities to prevent moisture issues, but proper packing and preparation on your part is also essential. If you have questions about protecting your specific items, we're here to help.