Linwood, Ohio

Can Mold Grow on Fiberglass Insulation? April 1, 2019

Linwood, Cincinnati
Can Mold Grow on Fiberglass Insulation?, Cincinnati, Ohio

Mold poses one of the most serious risks to your home and health. It can grow anywhere that’s dark and damp and easily goes unnoticed. Home insulation in attics, within walls, and in basements and crawlspaces is a common spot, and fiberglass materials are no exception. It’s important to understand how mold grows, signs of its presence, and how to prevent it so your home is safe.

Your Guide to Mold & Insulation

Mold & Fiberglass Insulation

Fiberglass insulation is applied in rolls or as spray foam insulation inside your walls and helps regulate the temperature in your home. It’s pink with a cotton candy-like texture and made of spun glass fibers. When water and mold spores are present, such as from a leak, mold can begin forming.

If your home doesn’t have a water vapor barrier, ground vapor may also contribute to mold growth. This is especially problematic because most homeowners don’t know that the water vapor is contributing to it and because fiberglass insulation usually isn’t visible.

Signs of Mold

insulation-priority-1-construction-serviceMold spores can trigger allergic reactions in humans and pets. You may experience cold-like symptoms, headaches, and respiratory issues. Those with severe allergies or weakened immune systems can suffer severe allergic reactions. If you experience these out of nowhere, schedule a home inspection so remediation experts can identify and resolve the issue.

Preventing Mold

Without moisture, mold can’t form, so make sure there aren’t any leaks in your home exterior where it’s seeping into areas with fiberglass insulation. Look for cracks in the exterior or siding, holes in the roof, and around exposed pipes in basements and crawlspaces. You can also invest in insulation that’s both mold- and mildew-resistant to prevent future problems.


Priority 1 Construction Service proudly offers mold-resistant insulation solutions to their clients. Based in Cincinnati, OH, they serve the Tri-State area and bring over 20 years of industry experience to the job. They can tackle asbestos removal, fireproofing, and general whole-home insulation services, which you can learn more about on their website. Call (513) 922-0203 to speak with an associate.

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