1. Does spray foam insulation prevent mold growth?
Yes, spray foam can be a strong deterrent against mold and mildew. It forms an airtight seal that keeps moisture from seeping into your walls—cutting off the damp environment mold needs to grow.
2. What makes spray foam different from traditional insulation for mold prevention?
Unlike fiberglass or cellulose, spray foam doesn’t absorb water. It creates a moisture-resistant barrier, which helps keep your home dry and mold-free even in high-humidity areas like attics or crawlspaces.
3. Where should I install spray foam to stop mold?
Attics, crawlspaces, and rim joists are especially vulnerable to moisture. Sealing these areas with spray foam protects your home’s structure while improving indoor air quality.
4. Can spray foam fix an existing mold problem?
No. It’s important to remove any existing mold before installing insulation. But once mold is properly treated, spray foam can help ensure it doesn’t return by eliminating air leaks and moisture intrusion.
