Spray Foam vs. Mold: Why Moisture Protection Starts with Proper Insulation

Martha Laverde • July 22, 2025

Alberta homes are at risk for moisture-related issues... spray foam can be your first line of defense.

Basement Rim Joist spray foam insulation

Mold isn’t just ugly, it can destroy materials, lower indoor air quality, and cause health problems. And in Edmonton’s freeze-thaw cycles, moisture intrusion is a constant risk. The good news? Closed-cell spray foam insulation can help.


Moisture: The Silent Home Wrecker

When warm air meets cold surfaces, condensation forms, especially in basements, crawlspaces, and poorly insulated attics. Add organic material like wood or drywall, and you’ve created a perfect environment for mold.


How Spray Foam Fights Mold

Spray foam is a moisture-resistant, air-sealing barrier. Closed-cell foam, in particular:

  • Blocks water intrusion
  • Prevents warm air from contacting cold surfaces
  • Doesn’t support mold growth like fiberglass or cellulose might


Ideal Areas to Use Spray Foam

We recommend moisture-blocking spray foam in:

  • Basement walls and rim joists
  • Attics prone to ice dams
  • Garages and workshops
  • Agricultural buildings with fluctuating humidity


Trust the Pros in Alberta

At Aires Spray Foam, we’ve insulated hundreds of homes and buildings across Alberta and we know where moisture likes to hide. We use advanced moisture-detection tools and install foam with precision to ensure no gaps or weak points.


Bonus: Spray Foam Increases Resale Value

Mold-free, well-insulated homes sell faster and command higher prices. Buyers care about energy efficiency and air quality and spray foam checks both boxes.


🚫 Don’t wait for mold to show up.
📞 Call Aires Spray Foam & Insulation today for a
free moisture inspection and spray foam quote in Edmonton or surrounding areas.

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