The Costly Consequences of Wet Insulation on Low-Slope Roofs

The Costly Consequences of Wet Insulation on Low-Slope Roofs


As industrial and commercial roofs age, various types of failures can occur. Small issues, such as puncture holes, failed seam welds in thermoplastic membranes, deteriorated adhesives in EPDM rubber roofs, and general wear from exposure can allow water infiltration. Over time, this water becomes trapped in the roofing insulation, leading to serious and costly problems.


Why Wet Insulation Is a Major Concern


When insulation retains moisture, it can cause:

✅ Organic Growth & Mold – Damp conditions create an environment for mold, which can impact indoor air quality.

✅ Rusting of Metal Decks – Trapped moisture accelerates corrosion, weakening the roof structure.

✅ Interior Damage – Ceilings, walls, and equipment inside the building are at risk of water-related deterioration.


The Importance of Protecting Your Insulation


One of the biggest benefits of preventative maintenance is cost savings during a future re-roof. In many cases, existing insulation can remain in place when installing a new membrane, significantly reducing material and labor costs. However, if insulation is compromised by water, a full tear-off and replacement may be necessary dramatically increasing project costs.


How to Extend the Life of Your Roof & Insulation


✔️ Regular inspections to identify risks early

✔️ Prompt repairs to prevent water infiltration

✔️ Proactive maintenance to extend the lifespan of your roofing system


Not sure if your roof’s insulation is at risk? Contact Cotterman & Company Inc. for a professional roof evaluation. Protect your investment and avoid costly replacements by addressing issues before they escalate.

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